2011 Mercedes R-Class Owner's Manual - Page 298

296 Flat tire i Fully deflating the tire can take a few minutes. X Screw the valve insert back into the valve. X Screw the valve cap back on. X Turn the retainer screw on the collapsible spare wheel clockwise into the tool holder as far as it will go. X Stow the jack in the vehicle tool kit. Flat tire Preparing the vehicle Your vehicle may be equipped with a collapsible spare wheel or the MOExtended run-flat system (Y page 307). Roadside Assistance i Vehicle preparation is not necessary on vehicles with the MOExtended run-flat system. In the spare wheel well, there are two guides : to keep the collapsible spare wheel in place. X Lay collapsible spare wheel ; in the emergency spare wheel well. i Make sure that collapsible spare wheel ; is positioned on guides : precisely. X Lay the tool holder in collapsible spare wheel ; so that the electric air pump is pointing towards the tailgate (Y page 294). X Turn the tool holder approximately 180°, so that the electric air pump points forwards. The tool holder should now be positioned in accordance with the instructions on the installation position. i Vehicles featuring the MOExtended runflat system are not equipped with the TIREFIT kit. It is therefore recommended that you additionally equip your vehicle with the TIREFIT kit if you mount tires that do not feature run-flat properties, e.g. winter tires. You can obtain a TIREFIT kit from an authorized Mercedes-Benz Center, for example. X Vehicles with the AIRMATIC package: make sure that highway level is selected (Y page 183). X Stop the vehicle as far away as possible from traffic on solid, non-slippery and level ground. X Switch on the hazard warning lamps. X Firmly depress the parking brake. X Bring the front wheels into the straightahead position. X X Move the DIRECT SELECT lever to P. Switch off the engine.