2007 Mercedes GL-Class Owner's Manual - Page 360
2007 Mercedes GL-Class Manual
Page 360 highlights
Operation Driving instructions In sandy soil, drive at a steady speed as allowed by conditions. This helps overcome the vehicle rolling resistance and reduces the likelihood of the vehicle sinking into the ground. Do not initiate jumps with the vehicle. It interrupts the forward momentum of the vehicle. Always drive onto slopes with the engine running and the vehicle in gear. Do not shift automatic transmission to position N. Checklist before off-road driving Engine oil level Check the engine oil level with the oil dipstick ( page 381). Only with a proper oil level can the vehicle obtain a trouble-free oil supply, even on steep gradients. Tires Check the tread depth and maintain specified tire inflation pressure (a placard with the recommended tire inflation pressures is located on the driver's door B-pillar ( page 389)). Check tires for possible damage and remove foreign objects. Replace missing valve caps. Rims Dented 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 Check if the vehicle jack ( page 497) is functional. In all cases take the vehicle tool kit, a strong tow rope, a shovel and a small plank (to put under the vehicle jack on sandy soil) with you. Warning! G ! If the engine oil level warning lamp ( page 476) comes on while driving, stop the vehicle in a safe location or as soon at is safe to do so. Check the engine oil level ( page 381). The engine oil level warnings should not be ignored. Extended driving with the symbol displayed could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty. Do not reduce the tire inflation pressure before driving through sand. However, if you do so, remember to correct the tire inflation pressure ( page 396) before continuing your trip. Driving with reduced tire inflation pressure increases the risk of losing control of the vehicle and rolling over. 359