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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 BAS (Brake Assist System)
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 ap-
proximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will
respond even with light brake pressure.
The - indicator lamp in the instrument
cluster (
୴ page 22) comes on when you
turn the SmartKey in the starter switch to
position 2. It goes out when the engine is
running.
i
In winter operation, the maximum
effectiveness of the ABS, ESP and
4MATIC (if so equipped) is only
achieved with winter tires (M+S tires),
or snow chains as required.
Warning! G
The following factors increase the risk of
accidents:
ț Excessive speed, especially in turns
ț Wet and slippery road surfaces
ț Following another vehicle too closely
The ABS, BAS, ESP and 4MATIC (if so
equipped) cannot reduce this risk.
Always adjust your driving style to the
prevailing road and weather conditions.
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.