154 Vehicle careAlways use fine mesh chains that addno more than 15 mm to the tyre treadand the inboard sides (including chainlock).9 WarningDamage may lead to tyre blowout.Wheel covers on steel wheels maycome into contact with parts of thechains. In such cases, remove thewheel covers.Tyre chains may only be used atspeeds up to 30 mph and, whentravelling on roads that are free ofsnow, they may only be used for briefperiods since they are subject to rapidwear on a hard road and may snap.The use of tyre chains is not permittedon the temporary spare wheel.Tyre repair kitMinor damage to the tyre tread can berepaired with the tyre repair kit.Do not remove foreign bodies fromthe tyres.Tyre damage exceeding 4 mm or thatis at the tyre's sidewall near the rimcannot be repaired with the tyre repairkit.9 WarningDo not drive faster than 50 mph.Do not use for a lengthy period.Steering and handling may beaffected.If the vehicle has a flat tyre:Apply the parking brake and engagefirst gear or reverse gear.The tyre repair kit is located under thefront seat. Slide seat forwards fullyand fold backrest down to access kit.1. Take the tyre repair kit out fromunder the front seat.2. Remove the compressor.3. Remove the power supply leadand air hose from the stowagecompartments on the undersideof the compressor.4. Screw the compressor air hose tothe connection on the sealantbottle.5. Fit the sealant bottle into theretainer on the compressor.Set the compressor near the tyrein such a way that the sealantbottle is upright.6. Unscrew valve cap from defectivetyre.