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Safety and Security
Driving safety systems
̄ Driving safety systems
In this section you will find information on
the following driving safety systems:
ț ABS (Antilock Brake System)
ț Adaptive Brake
ț BAS (Brake Assist System)
ț EBP (Electronic Brake Proportioning)
ț ESP
®
(Electronic Stability Program)
ț 4MATIC (Four Wheel Electronic
Traction System)
ABS
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of
approximately 5 mph (8 km/h) indepen-
dent of road surface conditions.
On slippery road surfaces, the ABS will re-
spond even to light brake pressure.
The - indicator lamp in the instrument
cluster comes on when you switch on the
ignition. It goes out when the engine is run-
ning.
Warning! G
The following factors increase the risk of ac-
cidents:
ț Excessive speed, especially in turns
ț Wet and slippery road surfaces
ț Following another vehicle too closely
The ABS, BAS, ESP
®
, Adaptive Brake, and
4MATIC cannot reduce this risk.
Always adjust your driving style to the pre-
vailing road and weather conditions.
i
In winter operation, the maximum
effectiveness of the ABS, the BAS, the EBP, the
ESP
®
, and 4MATIC is only achieved with winter
tires (
୴ page 363), or snow chains as required.
Warning! G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.