2007 Mercedes GL-Class Owner's Manual - Page 105

Safety and Security Driving safety systems Braking At the instant one of the wheels is about to lock up, a slight pulsation can be felt in the brake pedal, indicating that the ABS is in the regulating mode. Keep firm and steady pressure on the brake pedal while experiencing the pulsation. Continuous, steady brake pedal pressure yields the advantages provided by the ABS, namely braking power and ability to steer the vehicle. The pulsating brake pedal can be an indication of hazardous road conditions and functions as a reminder to take extra care while driving. Emergency brake maneuver Keep continuous full pressure on the brake pedal. Warning! G When the ABS is malfunctioning, the BAS, the ESP®, and the 4-ETS are also switched off. The basic driving and braking functions are still available. When the ABS is malfunctioning, the wheels may lock during hard braking, reducing steering capability and extending the braking distance. excessive speed in turns, following another vehicle too closely, or hydroplaning. Only a safe, attentive, and skillful driver can prevent accidents. The capabilities of an ABS equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user's safety or the safety of others. Off-road - ABS With the off-road driving program switched on ( page 279), or with the transmission in LOW RANGE* mode ( page 203), the ABS designed for off-road use is automatically activated. When applying the brakes at speeds below approximately 18 mph (30 km/h), the front wheels are locked cyclically to shorten the braking distance (dig-in effect). This affects steering the vehicle. For more information, see "Practical hints" ( page 435). Warning! G The ABS cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded. The ABS cannot prevent accidents, including those resulting from 104