Vehicle care 135Use of a spare wheel that is smallerthan the other wheels or together withwinter tyres could affect driveability.Have the defective tyre replaced assoon as possible.The spare wheel is mounted underthe rear underbody and may besecured using a security bolt that canonly be removed using the toolsupplied.9 WarningDue to the weight of the tyreassembly, exercise caution whenreleasing the spare wheel carrier.Do not fully remove bolt 1.Support the spare wheel with asuitable object to prevent thewheel falling suddenly whenloosening the carrier bolts - risk ofinjury!It may be necessary to jack thevehicle up to gain access to the sparewheel on a fully loaded vehicle with aflat rear tyre.To release the spare wheel carrier,loosen bolt 1, ensuring it is not fullyremoved. Fully remove bolt 2, thenpull the carrier to the left, until it clearsbolt 1, and lower the carrier assembly.When installing the wheel ensure thatthe spare wheel carrier is correctlypositioned before tightening the bolts.Summer and winter tyresIf you use winter tyres, the sparewheel may still be fitted with asummer tyre.If you use the spare wheel when it isfitted with a summer tyre the vehicle'sdriveability may be affected,especially on slippery road surfaces.Directional tyresFit directional tyres such that they rollin the direction of travel. The rollingdirection is indicated by a symbol(e.g. an arrow) on the sidewall.The following applies to tyres fittedopposing the rolling direction:■ Driveability may be affected. Havethe defective tyre renewed orrepaired as soon as possible.■ Do not drive faster than 50 mph.■ Drive particularly carefully on wetand snow-covered road surfaces.Jump startingDo not start with a quick charger.