Driving Stability Control Systems
Vehicle equipment
This chapter describes all standard, country-spe‐
cific and optional equipment available for the
model series. It may therefore describe equip‐
ment and functions which are not installed in
your vehicle, for example on account of the spe‐
cial equipment selected or the country specifica‐
tion. This also applies to safety-relevant func‐
tions and systems. Please comply with the
relevant laws and regulations when using the
corresponding functions and systems.
Anti-lock Brake System
ABS
ABS prevents the wheels from locking when the
brakes are applied.
Steering control is retained even during full brak‐
ing, which enhances active road safety.
ABS is operational each time the engine is star‐
ted.
Brake assist
When the brake pedal is depressed quickly, the
system automatically applies maximum braking
power. This keeps the stopping distance as short
as possible in full braking situations. The advan‐
tages offered by the Anti-lock Brake System
ABS can also be utilised to the full.
The pressure on the brake should be maintained
for the duration of the full-braking process.
Adaptive brake assist
In conjunction with Active Cruise Control ACC,
this system ensures that the brakes respond
even more quickly when braking in critical situa‐
tions.
Drive-off assistant
Principle
The system provides support when driving off on
upward gradients.
Driving off
1. Hold the vehicle in place with the foot brake.
2. Release the foot brake and drive off without
delay.
After the foot brake is released, the vehicle is
held in place for approximately 2 seconds.
Depending on the vehicle's load or when towing
a trailer, the vehicle may roll backwards a little.
Dynamic Stability Control
DSC
Principle
The system reduces drive power and applies the
brakes on individual wheels, thereby helping,
within the limits imposed by physics, to keep the
vehicle safely on course.
General
DSC detects the following unstable driving con‐
ditions, for example:
▷ Loss of traction at the rear which can lead to
oversteer.
▷ Loss of grip at the front wheels which can
lead to understeer.
Seite 247
Driving Stability Control Systems
CONTROLS
247
Online Edition for Part no. 01405A1EA53 - X/20
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