228 Service, MaintenancePicture no: 14234s.tifNever carry out any repairs or adjustm entand m aintenance work on the vehic leyourself. This especia lly applies to theengine, chassis and safety parts. You mayunwittingly infringe the provisions of thelaw a nd , by not performing the workproperly , end ang er y ourself and otherroad users.Checking and to pping up fluidsTo aid id entific ation, the caps used whentopping up engine oil, coolant and w ashfluid as well as the oil dipstick are colouredyellow.Picture no: 16486s.tifEngine oilInformation on eng ine oils is found in theServ ic e Booklet.Engine oil l ev el and consumpt ionEvery engine consum es engine oil fortechnical rea sons. The oil consum ptioncannot b e assessed until a fairly longdistance has been driven, and ma y beabove the specified value when the v ehicleis first being driv en (run-in p eriod).Frequent driving at high revs increasesengine oil c onsumption.In vehicles w ith engine oil level check 3 , theengine oil level is checked automatically -see p age 88. It is p artic ularly advisable tocheck the engine oil lev el b efore emb arkingon a long journey.Picture no: 16487s.tifEngine oil level check , topp ing upengine oilThe oil level must be checked with thevehicle on a level surface and w ith theeng ine (which must be at operatingtemperature) switched off. Wait at least5 minutes before chec king the level, toallow the norm al oil accumulation in theeng ine to drain into the oil pa n.9 Warnin gImportant: It is the owner’s responsibilityto maintain the correc t level of anappropriate qua lity oil in the engine.