2010 Mercedes GL-Class Owner's Manual - Page 345
2010 Mercedes GL-Class Manual
Page 345 highlights
Flat tire Removing the wheel 343 X ! Do not place wheel bolts in sand or dirt. This could result in damage to the wheel bolts and wheel hub threads. X Remove the wheel. Attaching the spare wheel G Warning! Always replace wheel bolts that are damaged or rusted. Never apply oil or grease to wheel bolts. Damaged wheel hub threads should be repaired immediately. Do not continue to drive under these circumstances! Contact an authorized Mercedes-Benz Center or call Roadside Assistance. Incorrect wheel bolts or improperly tightened wheel bolts can cause the wheel to come off. This could cause an accident. Make sure to use the correct wheel bolts. X Turn ratchet ? up and down until jack = is fully seated in take-up bracket ; and the jack base evenly meets the ground. X Jack up the vehicle until the wheel is a maximum of 1.2 in (3 cm) from the ground. G Warning! Only use genuine Mercedes-Benz wheel bolts. Other wheel bolts may come loose. Z Practical hints Attach reversible ratchet ? to jack = in such a way that the word UP can be seen. X Place jack = on firm ground. X Position jack = under take-up bracket ; so that it is always vertical as seen from the side, even if the vehicle is parked on an incline. X Unscrew the uppermost wheel bolt and remove it. X Replace this wheel bolt with alignment bolt :. X Remove the remaining bolts.