2010 Mercedes GL-Class Owner's Manual - Page 270

268 Driving instructions LOW RANGE mode (Y page 120) is switched on. RSet Proceed as follows: RSwitch the raised level (Y page 159). Operation ! Check that the ruts are not too deep and your vehicle's clearance is sufficient. Otherwise: Ryour vehicle may be damaged Rthe underbody of the vehicle may come in contact with the ground and you may get stuck RAvoid RShift off the off-road driving program (Y page 158) or the LOW RANGE mode (Y page 120). off the DSR (Y page 156). the differential locks to AUTO (Y page 122). the vehicle back to a level suitable for road conditions, e.g. highway/highspeed level (Y page 159). all exterior lamps and check for possible damage. the front and rear license plate. excessive dirt from tires, wheels, wheel housings, and underbody. For instance, after driving in mud, clean the radiator, chassis, engine, brakes, and wheels from extreme dirt using a strong jet of water. tires for possible damage. vehicle underbody, oil pan, brake hoses, etc., as well as vehicle underbody for possible damage. for brush or branches caught in the underbody. RSwitch RSet RLower high engine speeds. RClean RClean automatic transmission into gear range 1 (Y page 118). next to the ruts rather than through them if at all possible. one side of the vehicle on the grassy center strip if the route permits. RDrive RRemove RIf the ruts are too deep to drive in, drive with Returning from off-road driving G Warning! If you feel a sudden significant vibration or ride disturbance, or you suspect that possible damage to your vehicle has occurred, you should turn on the hazard warning flashers, carefully slow down, and drive with caution to an area which is a safe distance from the road. Inspect the tires and the vehicle underbody for possible damage. If the vehicle or tires appear unsafe, have the vehicle towed to the nearest authorized Mercedes-Benz Center or tire dealer for repairs. RCheck RInspect RCheck Off-road driving increases strain on the vehicle. We recommend that you inspect the vehicle for possible damage after each off-road trip. Recognizing any damage and a subsequent timely repair reduces the chance of a possible breakdown or accident later on. ! Brush or branches could increase the possibility of a fire, as well as cut fuel and/ or brake lines, puncture rubber bellows of the axles or drive shafts. RAfter continued operation in mud, sand, water or other dirty conditions clean the brake discs, wheels, brake pads and check and clean axle joints. RConduct a brake test.