2008 Mercedes R-Class Owner's Manual - Page 502

Practical hints Flat tire Lowering the vehicle Warning! 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! G Inflate collapsible tire only after the wheel is properly mounted. Inflate the collapsible tire using the electric air pump ( page 499) before lowering the vehicle. G 1-5 Wheel bolts Vehicles with scissors-type jack: Attach ratchet to vehicle jack in such a way that the word DOWN can be seen. Lower the vehicle until it is resting fully on its own weight: Vehicles with screw-type jack: Turn crank counterclockwise. Vehicles with scissors-type jack: Turn ratchet in direction DOWN. Remove the jack. 6 Wheel wrench 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). Store jack and all other vehicle tool kit items back into the storage well. i The removed road wheel cannot be stored in the spare wheel well under the cargo compartment floor, but should be transported in the cargo compartment wrapped in a protective wrap. Vehicles with TPMS or Advanced TPMS*: Do not activate the tire inflation pressure monitor until a full size wheel/tire with functioning sensor has been placed back into service on the vehicle. 501