Flat tyre 325 X All vehicles: loosen all wheel nuts and remove all but two opposing wheel nuts. X Wear protective eyewear. X Unscrew connector ; from tyre valve = and remove compressed-air hose : . X Do not unscrew the last two wheel nuts until the wheel is resting on the wheel bolts and is not under load. X On the spare wheel, unscrew cap A from tyre valve ? and screw on compressed-air hose : with connection ; immediately and tighten. X Remove the wheel. Fitting the compressed-air hose, vehi- cles with tyre pressure control system Fitting a wheel G WARNING Vehicles with tyre pressure control system:
when you unscrew the connection to the compressed-air hose on the wheel or the tyre valve cap on the spare wheel, air escapes under high pressure. This can disperse parti- cles. These can get into or irritate the eyes, nose, mouth and ears. There is a risk of injury. Wear protective eyewear when unscrewing. G WARNING Oiled, greased or damaged wheel nuts, wheel bolt threads or spherical spring washers can cause the wheel nuts to loosen. As a result, you could lose a wheel while driving. There is a risk of an accident. Never oil or grease the threads or spherical spring washers.
In the event of damage to the threads or the spherical spring washers, con- tact a qualified specialist workshop immedi- ately. Have the damaged wheel nuts, wheel bolts or spherical spring washers replaced. Do not drive on. Breakdown assistance ! Check wheel nuts regularly for tightness. Retighten if necessary. Replace damaged wheel nut cover caps and wheel nut covers. Observe the wheel nut tightening torque. ! After changing a wheel, check the tyre pressure immediately. Observe the notes on operating and road safety. Example: wheel removed When fitting a wheel: X Only use wheel nuts that are approved for your vehicle.
Wheel nuts for steel wheels and light-alloy wheels are different and must not be mixed up. Before fitting the wheel: X Lightly oil the friction contact surfaces between the pressure plate and the wheel nut. Example: spare wheel X Remove rust and dirt from the contact sur- faces of the wheel hub, wheel rim and wheel nuts. Z