Fi
tting a new wheel Re
quirements
R The wheel is remo ved (/ page 260). &
WARNING Risk of accident from losing a
wheel
Oiled or greased wheel bolts can cause the
wheel bolts tocome loose, as too can dam‐
aged wheel bolts or wheel hub thre ads. #
Never oil or grease theth re ads. #
Intheeve nt of damage totheth re ads,
con tact a qualified specialist workshop
immediatel y. #
Have the damaged wheel bolts or dam‐
aged hub thre ads replaced. #
Do not continue driving. &
WARNING Risk of injury from tightening
wheel bolts and nuts
If yo u tighten the wheel bolts or wheel nuts
when theve hicle is raised, the jack could tip. #
Only tighten wheel bolts or wheel nuts
when theve hicle is on the ground. #
Obser vethe information on thech oice of
tyres (/ page 256). #
Obser vethe instructions and saf ety no tes on
ch anging a wheel (/ page 256).#
For saf etyre asons, only use wheel bolts or
wheel nuts which ha vebeen appr ovedby
Mercedes-Benz and forth e wheel in question. #
Clean the wheel and wheel hub contact sur fa‐
ces. Lo
weri ngtheve hicle af ter a wheel change &
WARNING Risk of accident due toincor‐
re ct tigh tening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed torque. #
Ensu rethat the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. #
Ifyo u are not sure, do not mo vethe
ve hicle. Contact a qualified specialist
wo rkshop and ha vethe tightening tor‐
qu ech ecked immediately. Re
quirements:
R The new wheel has been fitted (/ page 261). #
Place the adap ter and thera tchet on the hex‐
agon head nut of the jack such that the letter‐
ing AB/DOWN is visible. #
Tolowe r the vehicle: turnthera tchet of the
jack anti-clo ckwise. #
Steel wheels: tightenth e wheel bolts or
wheel nuts evenly in a crosswise pattern in
th e sequence indicated (1 to5 ) and to a
maximum of 200 Nm. #
Light-alloy wheels: tightenthe wheel bolts
or wheel nuts evenly in a crosswise pattern in
th e sequence indicated (1 to5 ) and to a
maximum of 180 Nm. #
Che ckthe tyre pressure of the newly fitted
wheel and adjust it if necessa ry.
Ve hicles with the tyre pressure monitor sys‐
te m: allfitted wheels mu stbe equipped with
functioning sensors. #
Retighten the wheel bolts tothe specified
tightening torque af terth eve hicle has been
driven 50 km.
% When using a wheel or spare wheel with a
new or newly painted disk wheel, ha
vethe
wheel bolts or wheel nuts retightened again
af te r appro ximately 1,000 to5,000 km.
Obser vethe specified tightening torque. Infor
mation on wheel and tyre combinations
Gene ral no tes
Information on tyres, wheels and permissible
combinations can be obtained at a qualified spe‐
cialist workshop.
The smaller the cross-section of a tyre of a spe‐
cific wheel size, thewo rseth e driving comfort on
poor road sur faces. Ride and damp ing comfort
are reduced and therisk increases that when you
drive over obs tacles, damage towheels and tyres
may result. Wheels and tyres
261
