Grade Braking

The Grade Braking shift modes can be activated by pressing the button on the end of the shift control lever. While in Range Selection Mode, Grade Braking is deactivated allowing the driver to select ...

All-Wheel Drive

If the vehicle has this feature, engine power is sent to all four wheels when extra traction is needed. This is like four-wheel drive, but there is no separate lever or switch to engage or disengage ...

See also:

Checking the coolant level
NOTICE Running the engine without coolant will cause serious engine damage. The coolant level in the expansion tank should be checked at least weekly (more frequently in high mileage or arduo ...

Changing the follow mode set gap
Four gap settings are available. The selected gap setting is displayed on the message center when the gap adjustment buttons are operated. Each gap level is indicated by an additional chevron in fr ...

Vehicle data, GL 550
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...