2011 Mercedes SL-Class Owner's Manual - Page 284
2011 Mercedes SL-Class Manual
Page 284 highlights
282 Flat tire pressure as specified for your vehicle (Y page 303), decrease tire pressure using the vent screw on air hose ?. X Version 2 only: If the tire inflation pressure is above the recommended tire inflation pressure as specified for your vehicle (Y page 303), decrease tire pressure using deflate button B. X Tighten the five wheel bolts evenly, following the diagonal sequence illustrated (: to A), until all bolts are tight. Observe a tightening torque of 96 lb-ft (130 Nm). G Warning! G Observe Safety notes, see page 189. X Detach the electric air pump. X Reinstall collapsible tire valve cap. X Version 1 only: Store electrical plug = and air hose ? behind flap :. X Version 2 only: Store electrical plug = and the air hose back into the pump housing bottom. X Place the electric air pump back in its designated storage space. X Lower the vehicle. Lowering the vehicle G Warning! Inflate collapsible tire only after the wheel is properly attached. Inflate the collapsible tire using the electric air pump before lowering the vehicle. X Have the tightening torque checked after changing a wheel. The wheels could come loose if they are not tightened to a torque of 96 lb-ft (130 Nm). G Warning! Practical hints When turning the wheel wrench to tighten the wheel bolts, make sure you position your hands on the wrench in such a way that you avoid injury to yourself, such as scraping your hands against the wheel. Make sure turning the wheel wrench will not scratch or damage the wheel rim. X Before storing the jack in the trunk, crank back to storage position and fold in the jack arm. X Store the jack and the other vehicle tools in the designated storage space. For information on storing the spare wheel after it has been replaced by a regular road wheel, see (Y page 225). Lower the vehicle by turning the crank counterclockwise until the vehicle is resting fully on its own weight. X Pull the jack out of the jack support tube. i The flat tire may be transported in the trunk when the retractable hardtop is closed. If available use a protective wrap on the spare wheel. i Do not restart the tire inflation pressure monitor until a full size wheel/tire with functioning sensor has been placed back into service on the vehicle. X Do not exceed the maximum speed of 50 mph (80 km/h). Replacing jack support tube cover X Slide tongue of cover under the upper edge of the tube opening. X Applying even pressure, press cover until it snaps into place.