2009 Mercedes GL-Class Owner's Manual - Page 183

463_AKB; 2; 52, en-US d2ureepe, 2008-12-02T10:52:11+01:00 - Seite 181 Version: 2.11.7.1 Driving instructions Only with a proper oil level can the vehicle obtain a trouble-free oil supply, even on steep gradients. 181 Driving in steep terrain Slope angle : Overhang angle, front ; Overhang angle, rear Tires RCheck the tread depth and maintain specified tire inflation pressure. A placard with the recommended tire inflation pressures is located on the driver's door Bpillar (Y page 161). RCheck : G 550 G 55 AMG 37° 23° ; 31° 26° tires for possible damage and remove foreign objects. missing valve caps. RComply with the warnings (Y page 179) and RReplace rules for off-road driving (Y page 180). RDriving on embankments, slopes and other Rims RDented or bent rims can cause tire inflation pressure loss and damage the tire beads. For this reason, check and, if necessary, change rims before driving off-road. Vehicle tool kit RCheck if the jack (Y page 195) is functional. RAlways steep inclines should only be done straight up or downhill, i. e. in the line of gravity. Maximum vehicle climbing ability is a 80% grade which is equivalent to a slope angle of approximately 38°. Keep in mind that the climbing ability of the vehicle depends on terrain conditions. RShift automatic transmission into gear range 2 or 1 (Y page 89). slowly. the engine's braking power when descending a slope, observe the engine speed (do not overrev the engine). Apply the service brake as needed. take the vehicle tool kit, a strong tow rope, a shovel and a small plank (to put under the jack on sandy soil) with you. RDrive RUtilize i For maximum engine speed, see "Tachometer" (Y page 96) and see vehicle specification for your vehicle (Y page 248). RCheck the brakes after a lengthy downgrade drive. Z Operation ! If an engine oil level warning message appears in the multifunction display while driving, stop the vehicle in a safe location or as soon at is safe to do so. Check the engine oil level. The engine oil level warning messages should not be ignored. Extended driving with the message displayed could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty.