correcttighteningtorque.Thetighteningtorqueofthewheelboltsmustbecheckedregularlywithaproperly
functioningtorquewrench.Inaddition,thetighteningtorquemustbecheckedwithoutdelayusingacorrectly
functioningtorquewrenchaftereverywheelchange.Ifthetighteningtorqueofthewheelboltsistoolow,thewheel
boltsandrimscanloosenwhilethevehicleisinmotion.Thewheelboltsandthethreadscouldbedamagedifthe
tighteningtorqueistoohigh.
Ifthewheelboltsarecorrodedandstiff,theymustberenewedandthewheelhubthreadscleanedbeforethe
tighteningtorqueischecked.Nevergreaseorlubricatethewheelboltsorthethreadsofthewheelhub.
Tighteningtorqueforwheelbolts
ThetighteningtorqueofthewheelboltsisspecifiedinthesectionChangingawheel
(→Wheelsandtyres)
.
WARNING
Ifthetighteningtorqueofthewheelboltsisinsufficient,thewheelboltsandthusthewheelcanloosenwhilethe
vehicleisinmotion.Thewheelboltsandthethreadscouldbedamagedifthetighteningtorqueistoohigh.
Incorrectlytightenedormissingwheelboltscanleadtolossofcontroloverthevehicle,seriousaccidentsandfatal
injuries.
● Alwaystightenthewheelboltswiththecorrecttighteningtorque.Ifyoudonothaveatorquewrench,tighten
thewheelboltswiththewheelboltwrenchandhavethetorquecheckedimmediatelybythenearestsuitably
qualifiedworkshop.
● Neverdriveifwheelboltsaremissingorloose.
● Alwaysusewheelboltsthatmatchthewheelrimsandthevehicletype.
● Nevergreaseoroilthewheelboltandthethreadsinthewheelhubs.Thewheelboltscouldloosenwhilethe
vehicleisinmotion,eveniftherequiredtorquesettingisused.
● Makesurethatthewheelboltsandthreadsofthewheelhubsareclean,smooth-runningandfreeofoiland
grease.
● Neverloosentheboltsonwheelrimswithbolted-onrings.
Fig.1Diagramshowinghowtoswapwheels(illustration).
Regularlyrotatingthewheelsasshownintheillustration
→Fig.1
isrecommendedtohelpensurethattyreswear
evenly.Allthetyreswillthenlastforaboutthesametime.
VolkswagenCommercialVehiclesrecommendshavingthewheelschangedbyasuitablyqualifiedworkshop.
Rotatingwheels