Preparing
thev ehicle foraw heelchange Re
quirements:
R The tire-chang etool kit is available.
R The vehicle is no tonaslope.
R The vehicle is on solid, non-slipper yand le vel
ground. #
Appl ythe parking brake. #
Movethef ront wheels tothes traight-ahead
position. #
Vehicles with automatic transmission:
shif tthe transmission toposition 005D. #
Switc hoffthee ngine. #
Mak esuret hat thee ngine cann otbe star ted. #
Take thev ehicle tool kit from thef ootwell on
th ef ront passsenger side (/ page291). Ve
hicles with rear wheel drive #
Take thej acka nd thet ire-chang etool kit out
of thes towa ge compartment (/ page312). #
Ifnecessa ry,r emo vetheh ub cab. #
Assemble thel ug wrenc hextensio nusing the
middl erod and ther od wit hthe lar gest diam‐
et er from thet hree-piece jac kpum pleve r. #
Startin gwitht he middle rod, slide thel ug
wrenc hextensio nasfar as it will go ont othe
lug wrench. #
Using thel ug wrench, loosen thew heel nuts
or bolts on thew heel youw ish tochang eby
about one full turn. Do no tunscr ewthew heel
nuts or bolts comple tely. #
Raise thev ehicle (/ page313). Ra
ising thev ehicle when changing awheel &
WARNING Risk of inju ryfrom jac ktip‐
ping
If yo up arkav ehicle wit hair suspension, the
air suspension ma yremain acti vatedf or up to
one hour ,evenw hen thei gnition is switched
off. If yout hen raise thev ehicle wit hthe jac k,
th ea ir suspension will attem pttoadjus tthe
ve hicle le vel.
The jac kmaytip. #
Press theS ervice button on thea ir sus‐
pension remo tecontrol befor eraising
th ev ehicle.
This pr events au tomatic readjustment
of thev ehicle le vela nd pr events it from
being raised or lo weredm anually. &
WARNING Risk of inju ryfrom incor rect
positioning of thej ack
If yo udon otpositio nthe jac kcorrectl yatt he
appropriat ejackin gpointoft hevehicle, the
jac kc ould tip wi th thevehicle raised. #
Onlyposition thej ackatt he appropriate
jacking point of thev ehicle. The base of
th ej ackm ustbep ositioned vertically
under thej acking point of thev ehicle. &
WARNING Risk of inju ryfrom vehicle tip‐
ping
On slopes, thej ackc ould tip wit hthe vehicle
ra ised. #
Neverc hang eaw heel on aslope. #
Consult aqualified specialis tworks hop. *
NO
TEVehicle damag efromt he jack If
yo udon otpositio nthe jac kcorrectl yatt he
appropriat ejacks uppor tpoin toft hevehicle,
th ej ackc ould tip overwitht he vehicle raised. #
The jac kisdesigned exclusively for
jacking up thev ehicle at thej acks up‐
por tpoints. Re
quirements:
R Ther eareno persons in thev ehicle.
R The vehicle is prepared forc hanging awheel
(/ page313). Wheels and tires
313
Only position
thej ackont he jac ksuppor tpoints
intended fort his purpose. Youc oul do therwise
damag ethe vehicle.
Impor tant no tesonu singthej ack:
R Onlyusethev ehicle-speci ficj ackt hat has
been tested and appr ovedbyM ercedes-Benz
to raise thev ehicle. If thej ackisu sed incor‐
re ctly ,itc ould tip over while thev ehicle is
ra ised.
R The jac kisdesigned onl ytoraisethev ehicle
fo ras horttime whil eawheelisb eing
ch anged and is no tsuitable forc arrying out
maintenance workunde rthe vehicle.
R Avoid changing awheel on uphill and downhill
slopes.
R The jac kmustbep lacedonaf irm,flat and
non-slip sur face. If necessar y,use alarge,
fl at, load bearing and non-slip unde rlay.
R The base of thej ackisp ositioned vertically
under thej acks uppor tpoint.
Saf etyi nstruction swhile thev ehicle is raised:
R Do no tputyour hands or feet unde rthe vehi‐
cle.
R Do no tlie underneat hthe vehicle.
R Do no tstart thee ngine and do no trelease
th ep arking brake.
R Do no topen or close an ydoors.
Ve hicles with rear wheel drive Jack
suppor tpoints
Only use them iddle roda nd thep um pleve rrod
wit hthe larges tdiame terf or thej ackasa lug
wrenc hextension. Only inse rtthem iddle rodon
th el ug wrench, and alw aysasf ar as it will go.
Otherwise, ther ods could bend and defor msomuc
hthat they can no longer be use daspump
le ve rs fort he jac k. #
Toprepar ethe hydrauli cjack: insertthe
th irdr od of pum plever 1fort he jac kinto
th el ug wrenc hextension. #
Close pressur erelease scr ew3. #
Todo this, use thef lattened sectio nonpump
le ver 1totur np ressur erelease scr ew3
clockwise tothes top.
% Do no
tturnp ressur erelease scr ew3 more
th an one or tw ofull turns .Hydraulic fluid
coul dotherwise escape. #
Inser tpum plever 1withthe larges trod into
th er eces sont he jac kand secur ebyturning
it clo ckwise. #
Place thej ackv erticall ybeneat hthe jac ksup‐
por tpoints described belo w. Jac
ksuppor tpoint, front axle 314
Wheels and tires
