Abs (Anti-Lock Braking System); Off-Road Abs - Mercedes-Benz 2011 G-Class Operator's Manual

Driving safety systems
56
braking distance is increased
R
vehicle stability in standard driving
R
maneuvers is increased
Make sure the differential locks are switched
on at all times except when driving off-road
for example. Switch on the differential locks
immediately when returning from off-road
driving.
i In wintry driving conditions, always use
winter tires (M+S tires) and if necessary,
snow chains. Only in this way will the
driving safety systems described in this
section work as effectively as possible.

ABS (Anti-lock Braking System)

Important safety notes
G
Warning
Observe "Important safety notes"
Y
( page 55).
G
Warning
Do not pump the brake pedal. Use firm, steady
brake pedal pressure instead. Pumping the
brake pedal defeats the purpose of the ABS
and significantly reduces braking
effectiveness.
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicle when braking.
ABS operates above a speed of about
5 mph(8 km/h) regardless of road-surface
conditions, provided the differential locks are
not active. ABS works on slippery surfaces,
even when you only brake gently.
The ! warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
Braking
If ABS intervenes when braking, you will feel
a pulsing in the brake pedal.
X
If ABS intervenes: continue to depress the
brake pedal with force until the braking
situation is over.
X
To make a full brake application:
depress the brake pedal with full force.
The pulsating brake pedal can be an
indication of hazardous road conditions and
functions as a reminder to take extra care
while driving.
G
Warning
If the ABS malfunctions, other driving systems
such as the BAS or the ESP
off. Observe indicator and warning lamps that
may come on as well as messages in the
multifunction display that may appear.
If the ABS malfunctions, the wheels may lock
during hard braking, reducing the steering
capability and extending the braking distance.

Off-road ABS

If the LOW shift range (
selected on the transfer case, an ABS system
specifically suited to off-road terrain is
activated.
At speeds below 37 mph(60 km/h), the front
wheels lock periodically when braking. The
digging-in effect achieved in the process
reduces the stopping distance on off-road
terrain. This limits steering capability.
BAS (Brake Assist)
G
Warning
Observe "Important safety notes"
Y
( page 55).
BAS operates in emergency braking
situations. If you depress the brake pedal
quickly, BAS automatically boosts the braking
force, thus shortening the stopping distance.
®
are also switched
Y page 126) is