Fitted as standard e.g. in the E-Class (W210) or C-Class (W203). The sixth gear is designed as a genuine drive gear in which the cars reach their top speed. (more…)
The Electronic Traction System Intervenes if one of the drive wheels begins to spin. In contrast to the automatic locking differential (ASD), ETS is active over a wider speed range. Brake pressure is applied specifically to the spinning wheel, so improving traction. (more…)
Anti Slip Differential
The automatic locking differential improves handling when moving off on a road surface which is slippery on just one side. The locking differential is immediately disengaged when the brakes are applied, so that the ABS function is unaffected.
A major advantage of ASD is that it switches on and off automatically at the appropriate moments, thus relieving strain on the driver. A warning light in the instrument cluster alerts the driver whenever ASD is in operation.
All 2.3-16 valve 190 models are fitted with a Limited Slip Differential (LSD) as standard. They were also available with Mercedes’ ASD system which was standard equipment on the 2.5-16v. The ASD is an electronically controlled, hydraulically locking differential which activates automatically when required.
The electronic control allows varied amounts of differential lock from the standard 15% right up to 100%. It is not a traction control system however, and can only maximize traction rather than prevent wheel spin. Activation of the ASD system is indicated by an illuminating amber triangle in the speedometer.