2003 Mercedes G-Class Owner's Manual - Page 205

Operation Driving instructions Avoid excessive engine speeds - drive at moderate engine speeds (max. 3000 RPM). Before driving through water, determine its depth. Do not stop vehicle immersed in water, and do not shut off the engine. Maintaining continuous and reasonably vigorous accelerator application when driving in sandy soil will help overcome the vehicle rolling resistance, and help to prevent the vehicle from sinking into the ground. Do not initiate jumps with the vehicle. It interrupts the forward momentum of the vehicle. Always drive on slopes with the engine running and the vehicle in gear. Inspect the vehicle for possible damage after each off-road trip. Checklist before off-road driving Engine oil level Check the engine oil level ( page 218). The display ENGINE OIL LEVEL - O.K. must appear in the multifunction display. Only then can the vehicle obtain a trouble-free oil supply, even on steep gradients. Tires Check the tread depth and maintain specified tire pressure (see tire pressure label inside the fuel filler flap). Check tires for possible damage and remove foreign objects. Replace missing valve caps. Rims Dented or bent rims can cause tire 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 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. 205