2009 Mercedes GL-Class Owner's Manual - Page 242

463_AKB; 2; 52, en-US d2ureepe, 2008-12-02T10:52:11+01:00 - Seite 240 Version: 2.11.7.1 240 Towing the vehicle ! Before towing the vehicle observe the following instructions: RDo not tow-start the vehicle. You could otherwise seriously damage the automatic transmission which is not covered by the Mercedes-Benz Limited Warranty. RDo not tow with sling-type equipment. Towing with sling-type equipment over bumpy roads will damage radiator and supports. Prior to towing the vehicle with all wheels on the ground, make sure the SmartKey is in starter switch position 2. If the SmartKey is left in the starter switch position 0 for an extended period of time, it can no longer be turned in the switch. In this case, the steering is locked. To unlock, remove SmartKey from starter switch and reinsert. G Warning! Practical hints RTowing of the vehicle should only be done using the towing eye. Never attach a tow cable, tow rope or tow rod to the vehicle chassis, frame or suspension parts. With the engine not running, there is no power assistance for the brake and steering systems. In this case, it is important to keep in mind that a considerably higher degree of effort is necessary to brake and steer the vehicle. Adapt your driving accordingly. ! When towing the vehicle with all wheels on the ground, the gear selector lever must be in neutral position N and the SmartKey must be in starter switch position 2. When towing the vehicle with all wheels on the ground, the vehicle may be towed only for distances up to 30 miles (50 km) and at a speed not to exceed 30 mph (50 km/h). If the vehicle is towed with one axle raised (observe instructions regarding flexible drive shaft and propeller shafts), the engine must be shut off and the SmartKey must be in starter switch position 1. Otherwise, the 4-ETS may become engaged which may cause loss of towing control. G Warning! If circumstances require towing the vehicle with all wheels on the ground, always tow with a tow bar if: Rthe i If the battery is disconnected or discharged Rthe SmartKey will not turn in the starter switch Rthe automatic transmission will remain in park position P RFor more information see "Battery" (Y page 236) or "Jump starting" (Y page 237). information on manually unlocking the gear selector lever, see (Y page 222) RFor engine will not run is a malfunction in the brake system Rthere Rthere is a malfunction in the power supply or in the vehicle's electrical system i When towing the vehicle with all wheels on the ground, note the following: With the automatic central locking activated and the SmartKey in starter switch position 2, the vehicle doors lock if a wheel is turning at vehicle speeds of approximately 9 mph (15 km/h) or above. To prevent the vehicle doors from locking, deactivate the automatic central locking (Y page 108). i To signal turns while being towed with hazard warning flasher in use, turn the SmartKey in starter switch to position 2 This is necessary to adequately control the towed vehicle.