Vehicle care 261Clean rims with a pH-neutral wheelcleaner.Rims are painted and can be treatedwith the same agents as the body.Paintwork damageRectify minor paintwork damage witha touch-up pen before rust forms.Have more extensive damage or rustareas repaired by a workshop.UnderbodySome areas of the vehicle underbodyhave a PVC undercoating while othercritical areas have a durableprotective wax coating.After the underbody is washed, checkthe underbody and have it waxed ifnecessary.Bitumen/rubber materials coulddamage the PVC coating. Haveunderbody work carried out by aworkshop.Before and after winter, wash theunderbody and have the protectivewax coating checked.Liquid gas system9 DangerLiquid gas is heavier than air andcan collect in sink points.Take care when performing workat the underbody in a pit.For painting work and when using adrying booth at a temperature above60 °C, the liquid gas tank must beremoved.Do not make any modifications to theliquid gas system.Towing equipmentDo not clean the coupling ball bar witha steam-jet or high-pressure jetcleaner.Rear carrier systemClean the rear carrier system with asteam-jet or high-pressure jet cleanerat least once a year.Operate the rear carrier systemperiodically if not in regular use, inparticular during winter.Air shutterClean the shutter system in the frontbumper to maintain correctfunctionality.Interior careInterior and upholsteryOnly clean the vehicle interior,including the instrument panel fasciaand panelling, with a dry cloth orinterior cleaner.Clean the leather upholstery withclear water and a soft cloth. In case ofheavy soiling, use leather care.The instrument cluster and thedisplays should only be cleaned usinga soft damp cloth. If necessary use aweak soap solution.Clean fabric upholstery with avacuum cleaner and brush. Removestains with an upholstery cleaner.Clothing fabrics may not becolourfast. This could cause visiblediscolourations, especially on light-
