Mercedes-Benz GL-Class: Braking - ABS (Anti-lock Braking System) - Driving safety systems - Safety - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Braking

If ABS intervenes when braking, you will feel a pulsing in the brake pedal.

If ABS intervenes: continue to depress the brake pedal with force until the braking situation is over.
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.

WARNING Do not pump the brake pedal. Use firm, steady 
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.

    Important safety notes
    Observe the "Important safety notes" section. ABS regulates brake pressure in such a way that the wheels do not lock when you brake. This allows you to continue steering the vehicl ...

    Off-road ABS
    An ABS mode specifically suited to off-road terrain is activated automatically if the offroad drive program is activated or the LOW RANGE off-road gear is selected. At speeds below 18 mph(30 km ...

    See also:

    Parking brake
    WARNING ► Be sure the parking brake is fully released before driving. Failure to do so can cause brake failure and lead to an accident. ► Do not release the parking brake from ...

    Ashtray in the front-compartmentcenter console
    You can remove the ashtray insert and use the resulting compartment for stowage. The stowage space under the ashtray is not heat resistant. Before placing lit cigarettes in the ashtray, make ...

    Seat belt locking mechanism
    The rear outer seat belts and front passenger seat belts have a locking mechanism which improves the retention of child seats. The procedure to install a child seat is as follows: 1. Place the ch ...