Mercedes-Benz GL-Class: DSR (Downhill Speed Regulation) - Off-road driving systems - Driving and parking - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: DSR (Downhill Speed Regulation)

4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are permanently driven. Together with ESP® and 4ETS, it improves the traction of your vehicle whenever a drive wheel spins due to insufficient grip. WARNING&n ...

Important safety notes
DSR is an aid to assist you when driving downhill. It keeps the speed of travel at the speed selected on the on-board computer. The steeper the downhill gradient, the greater the DSR braking eff ...

See also:

Total Weight on the Vehicle's Tires
Be sure the vehicle's tires are inflated to the inflation pressures found on the Certification label on the driver door or see Vehicle Load Limits   for more information. Make sure not ...

Engine block heater (if so equipped)
Engine block heaters are used to assist in cold temperature starting. The engine block heater should be used when the outside temperature is 208F (−78C) or lower. To use the engine bloc ...

Operating video DVD
► Switch on COMAND and select video DVD (see the separate operating instructions). ► Press the button on the steering wheel to select the Audio menu. DVD changer display (example) ...