2006 Mercedes R-Class Owner's Manual - Page 486

Practical hints Flat tire Lowering the vehicle Warning! Warning! G Follow recommend tire inflation pressures. Do not overinflate tires. Overinflating tires can result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes, etc. Do not underinflate tires. Underinflated tires wear unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. G Inflate collapsible tire only after the wheel is properly mounted. Inflate the collapsible tire using the electric air pump ( page 483) before lowering the vehicle. 6 Wheel wrench Lower vehicle by turning crank counterclockwise until vehicle is resting fully on its own weight. Remove the jack. Tighten the five wheel bolts evenly, following the diagonal sequence illustrated (1 to 5), until all bolts are tight. Observe a tightening torque of 110 lb-ft (150 Nm). Warning! Detach the electric air pump. Store the electrical plug and the air hose behind the flap and place the electric air pump back in the vehicle tool kit storage well. G Have the tightening torque checked after changing a wheel. The wheels could come loose if they are not tightened to a torque of 110 lb-ft (150 Nm). 1-5 Wheel bolts 485