2008 Mercedes SL-Class Owner's Manual - Page 426

Practical hints Flat tire Replacing jack support tube cover Slide tongue of cover under the upper edge of the tube opening. Applying even pressure, press cover until it snaps into place. Be careful not to damage the locking tabs or clamp the plastic retaining strap. MOExtended system* The MOExtended system allows you to continue driving your vehicle even if there is a total loss of pressure in one or more tires. You may only use the MOExtended system in conjunction with the Run Flat Indicator* (Canada vehicles) ( page 303), TPMS (U.S. vehicles) ( page 305), or Advanced TPMS* (Canada vehicles) ( page 308). Warning! G When turning the wheel wrench to tighten the wheel bolts, make sure you position 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. Before storing the jack in the trunk, crank back to storage position and fold in the arm. i For information on storing the spare wheel back into the trunk, see "Storing the spare wheel after use" ( page 402). ! The maximum distance in emergency mode depends on the vehicle's load. It is 30 miles (50 km) if the vehicle is partially loaded and 18 miles (30 km) if the vehicle is fully loaded. The point at which the maximum driving distance begins in emergency mode is when the warning message appears in the multifunction display indicating that there is a loss of tire inflation pressure. Do not exceed the maximum speed of 50 mph (80 km/h). 425