Mercedes-Benz GLA 45 AMG (X 156) 2013

All-rounder with Driving Performance

Mercedes-AMG is continuing its product initiative with rigour: with the new GLA 45 AMG the performance brand of Mercedes-Benz makes a dynamic statement in the strongly growing segment of the compact SUV. 

 

The combination of powerful-distinctive design, exclusive appointments as well as superior engine power and driving performance is unique: the most powerful series-production four-cylinder engine in the world puts 265 kW (360 hp) and 450 Newton metres on the road.

The new GLA 45 AMG high-performance SUV also shines with low emission and fuel consumption figures.

With fuel consumption of 7.5 litres per 100 kilometres (NEDC combined; CO2: 175 g/km) and compliance with EU 6 emissions standards, the GLA 45 AMG once again provides proof that at Mercedes-AMG maximum performance does not come at the expense of environmental compatibility.

The GLA 45 AMG also holds the pole position with regard to driving dynamics: it accelerates from zero to 100 km/h in 4.8 seconds and reaches a top speed of 250 km/h (electronically limited).

Thanks to the combination of standard-fit performance-oriented AMG 4MATIC all-wheel drive and the AMG SPEEDSHIFT DCT 7-speed sports transmission, the GLA 45 AMG impresses with its equally sporty and efficient drive system concept.

Young target group: styling, dynamics and independence

In addition to the A 45 AMG and CLA 45 AMG, the GLA 45 AMG is the third vehicle with four-cylinder turbo engine to appeal to a young target group.

The trend-oriented customers set great store by styling, dynamics and independence – traits that are perfectly embodied in the new high-performance SUV from Affalterbach. Meeting a wide variety of customer desires has always been one of the strengths of Mercedes-AMG.

Mercedes-Benz GLA 45 AMG (X 156) 2013

The GLA 45 AMG now expands the extensive SUV line-up to five models (GLA 45 AMG, ML 63 AMG, GL 63 AMG, G 63 AMG and G 65 AMG). Mercedes-AMG thus offers the widest range of SUVs among all high-performance premium brands.

Hallmark AMG features: the world’s most powerful series-produced four-cylinder engine

Best in class: the engine of the GLA 45 AMG fully lives up to this claim, as a look at the figures shows. The AMG 2.0-litre turbo engine is the most powerful series-production four-cylinder engine in the world. It produces 265 kW (360 hp) of power and develops peak torque of 450 Newton metres.

A power density of 133 kW (181 hp) puts the AMG high-performance turbo engine on a par with the world’s most powerful super sports cars.

Key data at a glance:

Mercedes-Benz GLA 45 AMG
Displacement 1991 cc
Bore x stroke 83.0 x 92.0 mm
Output 265 kW (360 hp)
at 6000 rpm
Max. torque 450 Nm
at 2250-5000 rpm
Power density 133 kW (181 hp)
Fuel consumption, NEDC combined 7.5 l/100 km
CO2 emissions 175 g/km
Efficiency class D
Emissions standard EU 6
Acceleration 0-100 km/h 4.8 s
Top speed 250 km/h*

* Electronically limited

Development of the high-performance turbo engine, which is part of the BlueDIRECT family, placed emphasis on a sustainable reduction in particulate emissions.

Consequently the GLA 45 AMG today already complies with the second stage of the EU 6 emissions standard which will come into effect in 2017. The AMG 2.0-litre four-cylinder turbo engine features spray-guided direct petrol injection via piezo injectors with an injection pressure of 200 bar, positioned centrally in the four combustion chambers.

The combination of multiple fuel injection and multiple spark ignition improves fuel economy and significantly increases the thermodynamic efficiency, leading to low exhaust emissions.

The injection system’s outstanding flexibility also ensures a high degree of freedom in terms of application. There are up to five injections per combustion cycle in the cold-start and warm-up phase, which is so crucial for emissions. One of the key factors for in-engine particulate reduction is a reduction of the individual injection quantities.

Further highlights of the AMG 2.0-litre four-cylinder turbo engine:

  • Gravity-die sand-cast all-aluminium crankcase
  • Weight-optimised crank mechanism with forged steel crankshaft
  • Forged pistons with friction-optimised piston rings
  • NANOSLIDE cylinder liner technology
  • Air-to-water intercooling system
  • Alternator management
  • ECO start/stop function

Twin-scroll turbocharger and AMG sports exhaust system with exhaust flap

Mercedes-AMG addresses the basic challenge with regard to the throttle response of a small-capacity turbo engine by using a twin-scroll turbocharger, maximum dethrottling of the exhaust system and an innovative injection strategy.

Twin-scroll technology provides for a more spontaneous build-up of charge pressure: utilisation of the exhaust back-pressure, exhaust-gas temperature and exhaust-gas pulse has a positive impact.

This results in a faster build-up of torque already at low engine speeds. As a positive side-effect, fuel consumption and exhaust emissions also benefit from twin-scroll technology. With a maximum charge pressure of 1.8 bar, the AMG 2.0-litre four-cylinder turbo engine leads the field on this front, too.

Mercedes-Benz GLA 45 AMG (X 156) 2013

The AMG sports exhaust system in the GLA 45 AMG features large pipe cross-sections and an automatically controlled exhaust flap: this technology reconciles the two conflicting goals of a dynamic driving experience and hallmark Mercedes suitability for long-distance driving.

The flap in the rear silencer is continuously adjusted under map control according to the driver’s performance needs, load condition and engine speed. The two rectangular chrome-plated twin tailpipes on the AMG sports exhaust system emit a fascinating exhaust note, which is particularly impressive during powerful acceleration.

An AMG Performance exhaust system, also equipped with an exhaust flap, is available as an optional extra. Customers opting for this system will experience an even more appealing and distinctive engine sound.

Engine production – a tradition of hand-built excellence

The AMG 2.0-litre four-cylinder turbo engine is assembled purely by hand in accordance with the traditional AMG philosophy of “one man, one engine”. Apart from serving as an AMG hallmark confirming superlative production quality, the AMG engine badge bearing the engine fitter’s signature also attests to the peerless DNA of Mercedes-Benz’s high-performance brand.

AMG SPEEDSHIFT DCT 7-speed sports transmission

The AMG SPEEDSHIFT DCT 7-speed sports transmission in the GLA 45 AMG features three distinct transmission modes, a double-declutching function dependent on the transmission mode and a RACE START function for optimum acceleration.

The strengths of the dual-clutch transmission include spontaneous gear shifts without loss of tractive power, a tailor-made control strategy based on the AMG SPEEDSHIFT functions, extremely smooth gear shifts, and a high level of efficiency.

The shift times in manual mode “M” and in sport mode “S” are similarly sporty in character to those of the SLS AMG GT super sports car. Quick and precise retardation of the ignition interruptions and suppressing injection under full load lead to even faster gear shifts in “M” and “S” modes, with a more thrilling sound.

The transmission control fully utilises the benefits of the direct injection technology right up to the physical limits: the quicker engine response ensures that injection is suppressed with even more precision. As a result, the shift speed and an emotional sound experience hold a very special fascination.

Another special feature designed to enhance dynamic performance and driving pleasure is the so-called “Momentary M mode” – as seen in the SLS AMG Coupé Black Series super sports car.

In “C” mode (Controlled Efficiency), smooth transmission and engine characteristics support a fuel-efficient and comfort-oriented driving style.
In addition, the ECO start/stop function is active in “C” mode.

Mercedes-Benz GLA 45 AMG (X 156) 2013

Performance-oriented AMG 4MATIC all-wheel drive as standard

The GLA 45 AMG comes with variable AMG 4MATIC all-wheel driveas standard. In developing this all-wheel-drive system, the focus was firmly on performance and dynamic spirit. The all-wheel-drive system provides for an ideal transfer of engine power to the road to provide perfect traction – regardless of the weather conditions. It also elevates driving dynamics to the highest level.

The entire drive unit boasts a weight-saving and compact design: the power take-off unit (PTU) is fully integrated into the 7-speed sports transmission and takes care of power transfer to the rear drivetrain.

A two-part propeller shaft sends the engine power to the rear axle as well. In the interests of favourable weight distribution, an electrohydraulically controlledmultiple-disc clutch is integrated with the rear axle differential.

The multiple-disc clutch control detects slip at the front axle. A hydraulic pump instantaneously presses the discs together and channels the engine torque to the rear wheels as necessary.

All this takes place without the driver noticing. Power distribution is fully variable: during normal driving the GLA 45 AMG uses front-wheel drive for optimal efficiency. When required by the driving situation, the variable all-wheel drive system splits the torque between the front and rear axles up to a ratio of
50:50 percent.

Typically for AMG, the Electronic Stability Program is configured as a three-stage ESP®. The three modes “ESP ON”, “SPORT Handling Mode” and “ESP OFF” enable the driver to vary dynamic performance according to individual requirements at the push of a button.

ESP® Curve Dynamic Assist is likewise included as standard. During dynamic cornering, imperceptible braking intervention on the rear inside wheel creates a defined yaw moment about the vertical axis. As a result, the GLA 45 AMG steers precisely and under control at all times, the problem of understeer is banished.

AMG sports suspension and AMG high-performance braking system

One of the keys to agile handling is the axle technology: for enhanced driving dynamics, the McPherson front axle on the GLA 45 AMG is fitted with stiffer steering knuckles and new elastokinematics.

The four-link rear axle has also been newly developed. Stability and precision of handling are enhanced by the optimised elastokinematics and the rigid connection between the subframe and the body.

The AMG sports suspension with specially tuned spring/damper units and bigger anti-roll bars provides for high lateral acceleration and reduced body roll in fast double bends. The hallmark Mercedes comfort on long journeys is ensured all the same. An AMG performance suspension with firmer spring and damper tuning is available as an optional extra.

Mercedes-Benz GLA 45 AMG (X 156) 2013

The AMG speed-sensitive sports steering with AMG-specific, speed-dependent power assist ensures high steering precision and agility. The AMG high-performance braking system with ventilated, cross-drilled brake discs all-round and grey-painted brake callipers provides for spontaneous and reliable deceleration. Red brake callipers are available as an optional extra.

Three attractive AMG light-alloy wheels to choose from

In the standard specification the GLA 45 AMG runs on 5-twin-spoke AMG light-alloy wheels painted titanium grey with high-sheen finish, mounted with tyres of size 235/45 R 19.

As an optional extra from the AMG Performance Studio, customers can opt for larger 10-spoke AMG light-alloy wheels with tyres of size 235/40 R 20 – these are painted either titanium grey with high-sheen finish or matt black with high-sheen rim flange.

Design: sensual purity plus elements exclusive to AMG

The design of the GLA 45 AMG exudes fascination on account of its powerful and distinctive character. As the powerful AMG top-of-the-line model of the GLA-Class, the high-performance SUV combines the hallmark sensual purity of Mercedes-Benz as an expression of modern luxury with muscular,dynamic AMG design elements.

The AMG front apron with front splitter and the AMG “twin blade” radiator grille provide athletic highlights – both are painted in matt titanium grey. Completely new is the distinctive AMG lettering at the side between the louvres of the radiator grille.

This will make all new AMG models easy to recognise in future. Black flics (air deflector elements)above the large exterior cooling air intakes allude to motor sport. Bi-xenon headlamps come as standard.

When viewed from the side, the distinctive AMG light-alloy wheels in three design variants catch the eye. The side sill panels with titanium grey inserts, the “TURBO AMG” lettering on the front wings and the aluminium roof rails lend the GLA 45 AMG a special look.

The rear end is dominated by the diffuser insert with titanium grey trim and by the rectangular, chrome-plated tailpipe trim of the twin tailpipes of the AMG sports exhaust system with exhaust flap.

Interior design: high-quality, sporty, exclusive

As in all AMG high-performance automobiles, the interior of the GLA 45 AMG delights with its high-quality appeal, combined with sporty flair and exclusive equipment features. Sports seats in ARTICO man-made leather/DINAMICA microfibre with red contrasting topstitching and red designo safety belts are on board, as is the AMG DRIVE UNIT.

The 3-spoke nappa leather multifunction sports steering wheel with flattened bottom section, red contrasting topstitching, perforated leather in the grip area and steering-wheel shift paddles allows for perfect vehicle control. The AMG instrument cluster with 2-tube design and central colour display, AMG main menu and RACETIMER is on hand to provide information to the driver.

Mercedes-Benz GLA (X156) 2013

On opening the door, the driver is greeted by the AMG start-up screen. The trim of the instrument panel is of brushed aluminium and, in tandem with the brushed stainless-steel AMG
front door sills, emphasises the high-grade, exclusive ambiance inside the GLA 45 AMG. The GLA 45 AMG “Edition 1” is a special option which will be available for one year from market launch. The expressive arrangement of exclusive exterior and interior details arouses pure fascination.

Further details about the standard and optional equipment and about the
GLA 45 AMG “Edition 1” can be found in the “Design and equipment” section.

Web special allows people to interactively experience the GLA 45 AMG

The web special developed specifically for the GLA 45 AMG also allows people to interactively experience the new high-performance SUV from Mercedes-AMG. Furthermore, all visitors can view comments, films and pictures from fans of the AMG Twitter and Facebook pages on the site’s “social wall”, where they can also post their own statements. The web special can be accessed on the internet at www.mercedes-amg.com/webspecial/gla45

The sales release date for the Mercedes-Benz GLA 45 AMG will be
14 March 2014, and the market launch will start in July 2014. Prices for Germany (incl. 19% VAT):

GLA 45 AMG:                                                         € 55,870.50

GLA 45 AMG „Edition 1“:                                 € 63,248.50

Mercedes-AMG management comments on the GLA 45 AMG

“A true AMG when it comes to driving dynamics”

“Currently there is no segment growing faster than that of compact SUVs. For Mercedes-AMG it is therefore a logical step to make a self-confident statement in this segment with the GLA 45 AMG. Not least on account of the performance-oriented AMG 4MATIC all-wheel drive, our new high-performance-SUVis a true AMG when it comes to driving dynamics.”

Tobias Moers, Chairman of the Board of Management of Mercedes‑AMG GmbH

“The new GLA 45 AMG is already the third high-performance automobile to have the AMG 2.0-litre turbo engine. As the world’s most powerful production four-cylinder unit, it ensures exceptionally dynamic performance. It also leads the way when it comes to efficiency and emissions.”
Christian Enderle, Head of Engine and Powertrain Engineering, Mercedes-AMG GmbH

“Powerful-distinctive design, exclusive appointments as well as unrivalled engine power and Performance – the new GLA 45 AMG is a true all-rounder with Driving Performance. The unique product characteristics and vast array of individualisation options allow us to attract new target groups.”
Mario Spitzner, Head of Branding and Marketing, Mercedes-AMG GmbH

Mercedes-Benz GLA 45 AMG (X 156) 2013

Engine

High tech from four cylinders

  • AMG 2.0-litre four-cylinder turbo engine with 265 kW (360 hp)
  • The world’s most powerful four-cylinder engine in series production
  • Exciting power delivery, high pulling power
  • Fuel consumption of 7.5 litres per 100 kilometres (NEDC combined)
  • Compliance with the EU6 emissions standard right from market launch

When designing and developing the powerful AMG 2.0-litre four-cylinder turbo engine, the Mercedes-AMG experts drew inspiration from a wide variety of sources – including the technology of the AMG 5.5-litre V8 biturbo engine and the AMG 6.0-litre V12 biturbo engine.

AMG’s four-cylinder in-line turbo engine – in-house designation M 133 – also incorporates several decades of motorsport experience.

With an output of 265 kW (360 hp) and a peak torque of 450 Newton metres, the high-performance unit belonging to the BlueDIRECT engine family is the world’s most powerful four-cylinder engine in series production.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

The AMG turbo engine also stands out from the crowd when it comes to power density: a figure of 133 kW (181 hp) per litre puts the four-cylinder in-line unit on par with the world’s most powerful super sports cars.

With a maximum charge pressure of 1.8 bar, the AMG 2.0-litre four-cylinder turbo engine leads the field in this respect, too. The M 133 likewise sets new standards in terms of efficiency and environmental compatibility: The GLA 45 AMG gets fuel consumption of 7.5 litres per 100 kilometres (NEDC combined) and today already complies with the EU 6 emissions standard.

Driving pleasure, excitement, emotive appeal

The characteristics of the AMG 2.0-litre four-cylinder turbo engine add up to driving enjoyment. Whether throttle response, flexibility, pulling power or engine sound – the GLA 45 AMG is an absolute thrill to drive right from the word go.

One of the defining aspects of the driving sensation is the rich torque: a constant 450 Newton metres is on tap between 2250 and 5000 rpm. The spontaneous response to accelerator pedal movements and the lightning-fast run-up to the governed maximum speed of 6700 rpm leaves a lasting impression.

Much of the emotive appeal is down to the engine sound – not least when combined with the optional AMG performance exhaust system with exhaust flap.

Key data at a glance:

Mercedes-Benz GLA 45 AMG
Displacement 1991 cc
Bore x stroke 83.0 x 92.0 mm
Compression ratio 8.6 : 1
Output 265 kW (360 hp)
at 6000 rpm
Max. torque 450 Nm
at 2250-5000 rpm
Engine weight (dry) 148 kg
Maximum engine speed 6700 rpm
Power density 133 kW (181 hp)
Peak pressure up to 140 bar
Maximum charge pressure 1.8 bar
Fuel consumption, NEDC combined 7.5 l/100 km
CO2 emissions 175 g/km
Efficiency class D
Emissions standard EU6
Acceleration 0-100 km/h 4.8 s
Top speed 250 km/h*

* Electronically limited

The exciting engine characteristics and impressive technical data are largely down to the high-tech package put together by Mercedes-AMG. The M 133 displays many of the technical features of the AMG 5.5-litre V8 biturbo engine: the spray-guided direct petrol injection system includes the piezo injectors positioned centrally in the four combustion chambers and multiple injection with an injection pressure of 200 bar.

In combination with the multiple spark ignition, it allows higher thermodynamic efficiency, which in turn leads to better fuel utilisation and a sustainable reduction in particulate emissions.

The A 45 AMG thus already complies with the second stage of the EU6 emissions legislation that goes into effect in 2017. The injection system’s tremendous flexibility also ensures a high degree of freedom for the application.

There are up to five injections per combustion cycle in the cold-start and warm-up phase, which is so crucial for emissions. Here, one of the key aspects for particulate reduction is the reduction of the partial injection quantities.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

The four-valve-per-cylinder design with continuously variable camshaft adjustment, alternator management and the ECO start/stop function are likewise familiar features from the eight-cylinder biturbo engine.

Twin-scroll turbocharger for spontaneous response

The spontaneous reactions to accelerator pedal movements and the excellent throttle response are down to a fast build-up of charge pressure and torque. Mercedes-AMG addresses the challenges concerning the response of small-displacement turbo engines by combining a twin-scroll turbocharger with maximum derestriction of the exhaust system and multiple injection.

Unlike conventional systems, a twin-scroll turbocharger merges the exhaust gas ducts of cylinder pairs in the flow-optimised manifold. The advantages of the special twin-scroll manifold: exhaust gas back pressure, exhaust gas temperature and exhaust gas impulse ensure an optimum gas exchange.

By the same token, the engine’s tendency to knock and the residual gas in the cylinders are minimised.

Twin-scroll technology not only enhances key engine characteristics – it also helps to reduce fuel consumption and exhaust emissions. The optimised intake manifold with extremely short air paths and an exceptionally compact compressor housing additionally ensure spontaneous response and fast reactions to accelerator pedal movements.

The wastegate valve integrated in the twin-scroll exhaust gas turbocharger is vacuum-controlled by an electropneumatic converter, allowing a reduction in exhaust gas back pressure and dethrottling under partial loads, which in turn lowers fuel consumption.

Pure high tech inside the engine, too

The inner workings of the engine are just as sophisticated and high tech as the turbocharger: one typical feature of powerful racing engines is the weight-optimised crank assembly with forged steel crankshaft and forged pistons with friction-optimised piston rings.

These components were developed for motorsport and are also used in the SLS AMG super sports car; they reduce the oscillating masses and ensure exceptionally fast rev-up. Pressure-controlled oil-spray nozzles in the crankcase ensure efficient cooling of the highly stressed piston crowns.

Another innovation transferred from the SLS AMG is NANOSLIDE technology – a process which tribologically optimises the surfaces of the piston walls. A considerably harder surface is achieved compared to conventionally coated cylinder walls. The upshot is low friction and wear accompanied by outstanding durability.

Mercedes-Benz GLA 45 AMG (X 156) 2013

A technology known as “spectacle honing” comes from the AMG 5.5-litre V8 naturally aspirated engine in the SLK 55 AMG: in this process, the cylinder liners receive their mechanical surface treatment when already bolted in place.

As honing would no longer be possible with the cylinder head installed, a jig resembling spectacles is bolted to the crankcase. The cylinder liners distort as if the cylinder head were in place, and are only then given their mechanical surface treatment.

As a result, any static distortion of the cylinder liners caused by tightening the cylinder head bolts can be completely eliminated. The positive effects of this process are: reduced friction losses, low oil consumption and improved fuel consumption.

Engine cooling with high-tech components

High power output combined with maximum stability – the demands on the cooling system of the four-cylinder turbo engine are high. The principle of effective air-to-water intercooling was adopted from the V8 and V12 biturbo engines.

A cooler extending across the complete front level of the cooling module and situated behind the radiator grille is supplemented by an additional cooler in the right wheel arch.

The principle: together with the intercooler, which is connected in series, a high-performance electric pump ensures the required flow through the water coolers located behind the large intake ports.

This provides for ideal cooling of the highly compressed charge air, thereby contributing towards optimum engine performance. The transmission oil cooling is integrated into the water cooling circuit for the engine.

The radiator positioned behind the front fascia is supported by the heat exchanger which is fitted directly on the transmission and supplied with cooling water as required by means of an auxiliary pump.

To ensure optimum stability, the twin-scroll turbocharger has a sophisticated engine-off cooling system: a separate water pump allows the coolant to continue circulating, thus preventing temperature peaks when the hot engine is switched off.

Extreme loads of the kind that occur when driving on the racetrack do therefore not have a negative impact on service life.

For spontaneous deceleration and response, AMG’s four-cylinder turbo engine has electronically controlled fuel delivery with fully variable fuel pressure that can be controlled on demand between 100 and 200 bar.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

The fuel intake in the 56-litre tank has been optimised in line with the high performance: the pump integrated in the tank ensures reliable delivery even at high lateral acceleration levels.

Further highlights of the AMG 2.0-litre four-cylinder turbo engine:

  • Gravity-die sand-cast all-aluminium crankcase with ventilation bore (optimises comfort and efficiency)
  • Variable camshaft adjustment (optimises output, fuel consumption and exhaust gas emissions)
  • Low-resistance air filter (optimises output)
  • Controlled oil pump (optimises fuel consumption)
  • Two-mass flywheel with centrifugal pendulum (optimises comfort)
  • Viscous vibration damper on belt drive (optimises comfort)

AMG sports exhaust system with automatic exhaust flap

The twin-pipe AMG sports exhaust system is equipped with an automatically controlled exhaust flap.

This technology, based on the same principle as that used in the SLK 55 AMG, enables the engine sound to be changed depending on the driving situation: subtle and restrained when cruising or throaty and distinctive when accelerating and driving dynamically – acoustically, this technology perfectly reconciles the two apparently conflicting aims of tangible dynamic spirit and hallmark Mercedes comfort on long journeys.

The exhaust flap is continuously adjusted by the engine control unit according to the power called up by the driver, the load status and engine speed.

An AMG Performance exhaust system equipped with an exhaust flap is available as an optional extra. This system gives the driver an even more emotive, fuller engine sound when driving under full load and when changing gears.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

The double-declutching function during downshifting and the interruption of ignition and injection during upshifting under load produce a particularly throaty sound with the AMG Performance exhaust system and create a level of emotionality which is otherwise the preserve of engines with more than four cylinders.

Sophisticated emission control system to ensure compliance with the EU6 emissions standard

Both exhaust systems have a ceramic catalytic converter mounted near the engine firewall, which ensures fast response and, therefore, low untreated emissions. In addition, the exhaust pipe between the turbocharger and the catalytic converter has special insulation and also helps to accelerate heating of the ceramic catalytic converter.

The GLA 45 AMG already meets the requirements of the EU6 emissions standard, which does not go into effect until 2015. It also undercuts the particle concentration limit of 6 × 1011 particles/km that will be compulsory starting in 2017.

The large exhaust pipe cross sections – diameter of 80 millimetres upstream and 75 millimetres downstream of the catalytic converter – minimise the exhaust gas back pressure and optimise both power and torque output.

Engine production – a tradition of hand-built excellence

“One man, one engine” – the traditional AMG philosophy also applies to the AMG 2.0-litre four-cylinder turbo engine. An exclusive assembly line has been set up for the new AMG engine at the Mercedes-Benz engine production plant MDC Power in Kölleda – where all four-cylinder engines are built for the GLA-, A-, CLA- and B-Class models.

A characteristic feature of the “one man, one engine” production process is the AMG engine badge bearing the signature of the responsible engine fitter. Apart from serving as an AMG hallmark confirming superlative production quality, the AMG engine badge also attests to the peerless DNA of Mercedes-Benz’s high-performance brand.

Mercedes-Benz GLA 45 AMG (X 156) 2013

Power transmission

Dynamic, variable and efficient

  • Performance-oriented AMG 4MATIC all-wheel drive
  • Compact, weight-saving design
  • 3-stage ESP® with ESP® Curve Dynamic Assist
  • AMG SPEEDSHIFT DCT 7-speed sports transmission
  • Three modes, double-declutching function and RACE START
  • “Momentary M mode” for further enhanced dynamic spirit and driving enjoyment

Performance, dynamic spirit and efficiency – Mercedes-AMG meets the highest standards when it comes to power transmission as well as engine technology. As standard the GLA 45 AMG is equipped with the performance-oriented AMG 4MATIC all-wheel drive.

Perfect traction: the all-wheel drive system provides for the ideal transfer of engine power to the road – regardless of the weather conditions. It also elevates driving dynamics to the highest level.

In developing this all-wheel drive system, the focus was firmly on performance and dynamic spirit. The power transfer to the rear powertrain is provided by a compact power take-off unit (PTU) which is fully integrated into the AMG SPEEDSHIFT DCT 7-speed sports transmission and is supplied with lubricant from the latter’s oil circuit.

This configuration gives rise to substantial weight advantages in comparison to rival systems, which branch off power by means of an add-on component with its own oil circuit.

Together with the friction-minimised tapered roller bearings, the PTU achieves an excellent level of efficiency. As an additional bonus, the system weight of the AMG all-wheel drive is up to 25 percent lighter than the all-wheel drive versions offered by the competition.

As is always the case with all-wheel-drive systems incorporating a transversely mounted drive unit, the power needs to be diverted by 90 degrees. On the AMG all-wheel drive, this is achieved by quite simple means: the differential gearwheel of the main transmission drives the spur gear of the PTU and a compact bevel gear stage diverts the power. The rear axle is driven via an output flange and a propeller shaft.

Mercedes-Benz GLA 45 AMG (X 156) 2013

A two-part propeller shaft transfers the power from the AMG 2.0-litre four-cylinder turbo engine to the rear axle. In order to minimise crash-induced stress for passengers in a head-on or rear-end collision, the propeller shaft is fitted with a crash joint.

In the interests of favourable weight distribution, an electrohydraulically controlledmultiple-disc clutch is integrated with the rear axle differential. The multiple-disc clutch control detects slip at the front axle.

A hydraulic pump instantaneously presses the discs together and channels the engine torque to the rear wheels as necessary. All this takes place virtually without the driver noticing.

To enable particularly fast response, the pump is always active and does not require to be started up each time it is needed, as is customary with other systems.

The pump is activated automatically even if there is only a small speed differential between the front and rear axle, with the pressure being regulated by a proportional valve controlled by the 3-stage ESP®.

Torque on demand: fully variable drive torque distribution

The drive torque can be shifted in fully variable mode between front and rear axle according to the given situation (torque on demand): during normal driving the GLA 45 AMG uses front-wheel drive for optimal efficiency.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

When the driving dynamics so require, the variable AMG 4MATIC all-wheel drive splits the torque between front and rear axle up to a ratio of 50:50 percent. When there is a so-called friction jump, i.e. when only the front wheels briefly lose grip on an icy surface, the entire torque is transferred to the rear wheels almost instantaneously.

The reverse process takes place just as quickly: as soon as additional drive torque is no longer expedient at the rear axle – e.g. in case of heavy braking manoeuvres with ABS intervention – the rear powertrain is deactivated and torque is reduced to zero.

With this strategy, the developers have managed to combine two key requirements defined in the performance specifications: optimum energy efficiency coupled with maximum dynamic handling and driving safety.

The variables influencing the power distribution ratio are vehicle speed, lateral and longitudinal acceleration, steering angle, speed difference between the individual wheels, selected gear and accelerator position.

Another feature of the AMG 4MATIC system results in a further increase in dynamic handling, guaranteeing even greater driving enjoyment without compromising driving safety.

In case of impending understeer or oversteer under load, the drive torque is first of all distributed in such a way as to stabilise the vehicle. This ensures that traction and driving enjoyment are fully maintained in swift driving on winding stretches of road.

Only if these measures fail to have a stabilising effect do the control systems adapted to 4MATIC conditions, such as 3-stage ESP® or 4ETS, intervene to keep the car stable.

Mercedes-Benz GLA 45 AMG (X 156) 2013

The 4ETS electronic traction system forms part of the 3-stage ESP® and brakes the driven wheels individually when they go into spin. This provides for a high level of traction on slippery surfaces, on roads which are icy on one side or in continually changing conditions.

In a nutshell: while 4ETS is responsible for maintaining the highest possible traction in all conditions, 3-stage ESP® serves as the higher-level control instance to ensure optimum driving stability.

3-stage ESP® with ESP®Curve Dynamic Assist

An exclusive feature is the interaction of the AMG 4MATIC all-wheel drive with the 3-stage ESP® and ESP®Curve Dynamic Assist. The three ESP® stages enable drivers to vary the dynamics of the GLA 45 AMG according to their individual wishes at the push of a button.

The safety-oriented “ESP ON” mode supports the driver in maintaining neutral handling characteristics. The system initiates braking intervention on one or more wheels and reduces the engine torque on detecting that the operating conditions are becoming unstable.

Briefly pressing the ESP® button activates “SPORT Handling” mode. This dynamically oriented driving mode applies appropriate control strategies for later ESP® intervention and increased drive torque at the rear axle.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

This means more fun at the wheel for drivers who are keen to exploit the vehicle’s potential. Pressing the ESP® button longer activates “ESP OFF”. In this mode, the ESP® functions are not available. ESP OFF should only be used by experienced drivers on cordoned-off racetracks.

If the driver steps on the brake pedal in “SPORT Handling” mode or “ESP OFF” mode, all the safety functionsof the ESP® system become available during braking.

ESP®Curve Dynamic Assist complements this system to perfection: during dynamic cornering, imperceptible braking intervention on an inside wheel gives rise to a defined yaw moment around the vertical axis, resulting in precise cornering and ensuring that the vehicle remains under control at all times.

Depending on the selected ESP® mode, ESP®Curve Dynamic Assist is adapted accordingly. In “ESP SPORT Handling” mode and “ESP OFF” mode it supports the driver’s wish for increased agility and dynamic handling.

GLA 45 AMG Edition 1 (X 156) 2013

ESP®Curve Dynamic Assist is an additional function of the 3-stage ESP® which noticeably improves not only agility, but also active driving safety in critical conditions.

AMG SPEEDSHIFT DCT 7-speed sports transmission with RACE START

The AMG SPEEDSHIFT DCT 7-speed sports transmission transfers the engine power to all four wheels. The dual clutch transmission is flange-mounted on the transversely installed engine and features three modes, a double-declutching function and RACE START for optimum acceleration.

It also boasts compact dimensions, low weight and high efficiency as well as exemplary variability, spontaneous gear changes without any interruption in tractive power, a tailor-made control strategy and smooth, easy gear shifting.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

Key software modules have been adopted from the SLS AMG GT and SLS AMG Coupé Black Series with their inspirational power transmission concepts. Reinforced gear wheels provide for maximum stability.

Synchroniser rings with carbon-fibre friction linings improve durability while also optimising the response time during manual gear-changing – the ideal basis for ambitious laps on cordoned-off racetracks.

The three transmission modes – Controlled Efficiency (“C”), Sport (“S”) and Manual (“M”) – allow the driver to define the character of the car, including its sound, according to individual taste and requirements. In Controlled Efficiency mode, low engine speeds are available in the highest possible gears in all driving situations.

GLA 45 AMG Edition 1 (X 156) 2013

When driving in “C” mode, the AMG SPEEDSHIFT DCT 7‑speed sports transmission always selects the most fuel-efficient gear, allowing an ecologically oriented driving style without forsaking superior performance.

This mode also reduces noise levels. The AMG 2.0-litre four-cylinder turbo engine’s favourable torque curve, with plenty of power even at low engine speeds, is ideal for this style of driving. In addition, in “C” mode the ECO start/stop function is active.

Controlled Efficiency also means smooth gear changes and a “soft” accelerator pedal curve for a smooth driving style.

The shift times in manual mode “M” and in Sport mode “S” are similarly sporty in character to those of the SLS AMG GT super sports car. Briefly and precisely interrupting ignition and injection under full load leads to even faster gearshifts in “M” and “S”, with a more emotional sound.

Mercedes-Benz GLA 45 AMG (X 156) 2013

In Manual mode “M”, the AMG SPEEDSHIFT DCT 7-speed sports transmission does not change down automatically, neither at full load nor if kickdown is used, allowing the driver to make ideal use of the AMG turbo engine’s pulling power and select the ideal gear using the steering-wheel shift paddles.

The automatic double-declutching function is active in all modes – although its characteristics vary according to the selected mode. The desired mode is selected by pressing a button on the AMG DRIVE UNIT.

“Momentary M mode” for further enhanced dynamic spirit and driving enjoyment

One special feature here that has already appeared in the SLS AMG Coupé Black Series is “Momentary M mode”, which allows drivers to activate Manual mode in “C” and “S” mode by pressing the “up” or “down” shift paddle once – without having to take their hands off the steering wheel.

In Momentary M mode the driver experiences full dynamic spirit and performance in the automatic modes – including the kickdown function and automatic upshifting when the rpm limit is reached into the bargain. This allows the driver to enjoy the vehicle’s impressive performance to the full.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

The system deactivates Momentary M mode and reverts to the mode last activated (“C” or “S”) fully automatically based on the current driving situation and driving style.

Best acceleration times with RACE START

The RACE START function is used for accelerating in the shortest time: while the car is stationary, the driver first has to activate “SPORT Handling Mode” and manual mode “M” in the 3-stage ESP® and then press the brake pedal with their left foot.

Then the two steering-wheel shift paddles are pulled simultaneously, after which the activation of RACE START is confirmed with the right-hand shift paddle. Finally, the accelerator must be pressed fully with the right foot, while the left foot must come off the brake pedal.

GLA 45 AMG Edition 1 (X 156) 2013

 

The “RACE START active” message then appears on the central display. The system determines the optimum starting revs fully automatically, and the car accelerates with optimum traction – thanks to the AMG 4MATIC all-wheel drive and the 4ETS electronic traction system.

Manual upshifting is not necessary in RACE START mode as the AMG dual clutch transmission changes gear in the quickest possible time for maximum acceleration.

Mercedes-Benz GLA 45 AMG (X 156) 2013

Chassis, suspension and braking system

Performance, precision and agility

  • AMG sports suspension with newly developed front and rear axle
  • AMG performance suspension available as an option
  • Electromechanical dual-pinion AMG speed-sensitive sports steering
  • AMG high-performance braking system for spontaneous deceleration

High agility and dynamic handling coupled with hallmark Mercedes comfort on long journeys are major strengths of the GLA 45 AMG. The McPherson
front axle and four-link rear suspension are all-new developments from Mercedes-AMG. During design and development, the focus was firmly on ensuring maximum performance and the best possible traction when driving extremely dynamically.

New, stiffer steering knuckles are used on the front axle. As well as ensuring direct steering behaviour, they also see to it that the camber remains constant when cornering at speed. Experts refer to this as “camber stiffness”.

GLA 45 AMG Edition 1 (X 156) 2013

The rear axle features all-new strut bearings, while the subframe is rigidly connected to the body. All of the understeer/oversteer characteristics have been optimised along with the rear axle spring travel.

Hallmark AMG features include the front and rear axle with more negative camber as well as optimised, stiffer elastokinematics for much higher lateral dynamics.

The AMG sports suspension is equipped with specifically tuned spring/damper units, new head bearings and larger stabilisers, meaning that the driver benefits from a more direct driving feel and a reduced rolling tendency in fast double bends.

The GLA 45 AMG is available with AMG performance suspension as an optional extra. Stiffer spring/damper units all round result in even better road feel as well as reduced body pitch and roll.

 Mercedes-Benz GLA 45 AMG (X 156) 2013 

AMG speed-sensitive sports steering for highly precise steering

The electromechanical dual-pinion AMG speed-sensitive sports steering ensures agile cornering and exceptional feedback at the critical limits. The basis for this is the AMG-specific, speed-dependent power assistance and a constant steering ratio (14.5 : 1).

The electric motor is located on the steering gear to save space. Sporty response from centre position, optimum road feel and highly precise steering, especially when adopting a sporty driving style, are among the key attributes of the AMG speed-sensitive sports steering.

The high-performance control unit processes the parameters captured by the ESP® control unit – including vehicle speed, steering angle, steering angle rate of change, lateral acceleration and also understeer/oversteer characteristics – and in a split second calculates the forces which the driver needs to input into the steering in different driving situations – from parking to high-speed motorway driving.

Active steering dampers enhance the feeling of safety when driving straight ahead at high speed.

GLA 45 AMG Edition 1 (X 156) 2013

The electromechanical dual-pinion AMG speed-sensitive sports steering additionally enables various steering assistance functions which are activated by the ESP® control unit. These include:

  • Countersteering in case of oversteer
  • Corrective steering when braking on road surfaces offering different levels of grip (split-friction braking)
  • Compensating crosswind and road gradients
  • Use of Active Parking Assist (optional extra)

AMG high-performance braking system with a wealth of convenience functions

The GLA 45 AMG also owes much of its excellent dynamic handling to the AMG high-performance braking system. One of its major attributes is the spontaneous and reliable braking effect.

Vented, cross-drilled and grooved disc brakes are fitted on the front and rear axle. The front axle features 4-piston aluminium fixed callipers, while the rear axle has single-piston combination callipers.

GLA 45 AMG Edition 1 (X 156) 2013

Brake data at a glance:

AMG high-performance braking system
Front axle:
Brake calliperBrake disc

 

Diameter
Thickness

Weight*

4-piston aluminium fixed calliperIntegral technology, vented, cross-drilled, grooved

350 mm
32 mm
12.2 kg

Rear axle:
Brake calliperBrake disc

 

Diameter
Thickness

Weight*

Single-piston combination calliperIntegral technology, vented, cross-drilled, grooved

330 mm
22 mm
7.2 kg

*Weight of the brake disc

One particularly convenient feature is the HOLD function as also seen in the larger model series: when stopping, for example at traffic lights, the driver merely has to press the brake pedal slightly more firmly once to keep the brake engaged until moving off again. The brake is released automatically when the driver steps on the accelerator.

Mercedes-Benz GLA 45 AMG (X 156) 2013

The electric parking brake is standard and features servomotors that act on the rear axle’s combination callipers. The parking brake is operated using a button on the instrument panel to the left of the steering wheel below the light switch, freeing up space on the centre console where the handbrake lever would normally be.

A useful convenience function makes hill starts easier: if the driver is wearing the seat belt and accelerates enough to drive away, the parking brake is released automatically.

If the button is pressed when travelling faster than 4 km/h, the parking brake functions as an emergency brake: all four wheel brakes are activated by the ESP® hydraulic unit.

Two wheel/tyre combinations to choose from

Contact with the road is provided by wide-base 235/45 R 19 tyres – fitted on AMG 8 x 19 light-alloy wheels as standard. The two versions available as optional extras are one size larger: the AMG light-alloy wheels in 8 x 20 with tyres size 235/40 R 20 are available in two design variants.

Design and equipment

Sensual purity plus elements exclusive to AMG

  • Powerful and distinctive character
  • AMG “twin blade” radiator grille in matt titanium grey
  • Bi-xenon headlamps as standard
  • Dynamic spirit and exclusivity in the high-quality interior
  • Wide range of optional extras

Mercedes-Benz GLA 45 AMG (X 156) 2013

Expressive and exclusive: the GLA 45 AMG “Edition 1”

The design of the GLA 45 AMG exudes fascination on account of its powerful and distinctive character. As most powerful variant of the GLA-Class, the high-performance SUV combines the hallmark sensual purity of Mercedes-Benz as an expression of modern luxury with musculardesign elements exclusive to AMG.

The AMG front apron with front splitter and the AMG “twin blade” radiator grille provide athletic highlights – both are painted in matt titanium grey. Completely new is the distinctive AMG lettering at the side between the louvres of the radiator grille.

This will make all new AMG models easy to recognise in future. Black flics (air deflector elements)above the exterior cooling air intakes allude to motorsport. Bi-xenon headlamps come as standard.

When viewed from the side, the distinctive AMG light-alloy wheels in three design variants catch the eye. The side sill panels with titanium grey inserts, the “TURBO AMG” lettering on the front wings and the aluminium roof rails lend the GLA 45 AMG a special look.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

The rear end is dominated by the diffuser insert with titanium grey trim and by the rectangular, chrome-plated tailpipe trim of the twin tailpipes of the AMG sports exhaust system with exhaust flap.

The following AMG equipment features can optionally upgrade the exterior design:

  • Aerodynamics package: larger front splitter, additional flics in the front apron, rear spoiler
  • Carbon-fibre exterior mirror housings
  • Exterior Carbon-Fibre package: carbon-fibre trim on the front splitter and rear apron and carbon-fibre side sill panel inserts, with twin blade of the radiator grille in silver chrome
  • Rear spoiler Night package: privacy windows, black anodised waistline trim strip, silver chrome radiator grille louvres; high-gloss black front splitter, exterior mirrors, side sill panel insert and rear apron trim; black oxide finish tailpipes, black anodised roof rails
  • Red painted brake callipers with black AMG lettering

GLA 45 AMG Edition 1 (X 156) 2013

Interior design: high-quality, sporty, exclusive

As in all AMG high-performance automobiles from Affalterbach, the interior of the GLA 45 AMG delights with its high-quality appeal, combined with sporty flair and exclusive equipment features.

Sports seats in ARTICO man-made leather/DINAMICA microfibre with red contrasting topstitching and red designo seat belts are on board, as is the AMG DRIVE UNIT.

The 3-spoke nappa leather multifunction sports steering wheel with flattened bottom section, red contrasting topstitching, perforated leather in the grip area and steering-wheel shift paddles allows for perfect vehicle control.

The AMG instrument cluster with 2-tube design and central colour display, AMG main menu and RACETIMER is on hand to provide information to the driver. On opening the door, the driver is greeted by the AMG start-up screen.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

The trim of the instrument panel is of brushed aluminium and, in tandem with the brushed stainless-steel AMG front door sills, emphasises the high-grade, exclusive ambiance inside the GLA 45 AMG.

The interior can be upgraded with the following AMGoptional extras:

  • Exclusive package
  • Performance steering wheel in black nappa leather/Alcantara® including E-SELECT selector lever with embossed AMG emblem and electronic master key with AMG emblem
  • Performance seats for driver and front passenger, with more strongly contoured seat shape for enhanced lateral support and with integral head restraints
  • Carbon-fibre trim
  • Black, crystal grey, nut brown or black RED CUT upholstery

GLA 45 AMG Edition 1 (X 156) 2013

Also included in the standard equipment package of the GLA 45 AMG (selection):

  • AMG floor mats
  • ECO start/stop function
  • Air conditioning
  • ATTENTION ASSIST drowsiness detection system
  • Radar-based COLLISION PREVENTION ASSIST with Adaptive Brake Assist
  • Audio 20 CD radio
  • Sports pedals in brushed stainless steel with rubber studs

Expressive and exclusive: the GLA 45 AMG “Edition 1”

The GLA 45 AMG “Edition 1” is a special option which will be available for one year from market launch. The expressive arrangement of exclusive exterior and interior details arouses pure fascination.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

The high-gloss black Aerodynamics package with larger front splitter, additional flics in the front apron, and rear aerofoil creates an uncompromising racetrack feel.

The decorative Edition 1 foil on the vehicle sides leaves a lasting impression. It is complemented by red highlights on radiator grille, exterior mirrors and diffuser insert.

The red painted brake callipers and multi-spoke AMG light-alloy wheels painted matt black with red rim flanges are a perfect match. The light-alloy wheels feature special AMG wheel hub covers with central-lock look, and are mounted with tyres of size 235/40 R 20 all-round.

Mercedes-Benz GLA 45 AMG (X 156) 2013

The AMG Night package is also part of the standard equipment. The metallic paints cosmos black, polar silver, mountain grey and designo mountain grey magno are available as an alternative to the cirrus white exterior paintwork.

The interior of the GLA 45 AMG “Edition 1” is dominated by the colours black and red. Red contrasting topstitching adorns the AMG Performance seats in ARTICO man-made leather/DINAMICA microfibre, the armrests, the upper section of the ARTICO man-made leather/DINAMICA microfibre instrument panel and the nappa leather/DINAMICA microfibre AMG Performance steering wheel.

Mercedes-Benz GLA 45 AMG (X 156) 2013

 

Other visual highlights are the E-SELECT lever with embossed AMG emblem and the “Edition 1” badge on the AMG DRIVE UNIT. A match for the decorative foil on the vehicle sides is the exclusive AMG trim of the instrument panel in Edition 1 design.

The high-quality surface has a convincing look and feel: shiny, matt elements create an exciting interplay with the diamond pattern and AMG lettering on the right-hand side.

Mercedes-Benz GLA 45 AMG (X 156) 2013

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