2017 MERCEDES-BENZ C-Class COUPE wheel bolts

Cleaning thevehicle parts
Cleaning th ewheels
GWARNING
The wate rjet from acircular je tnozzle (dirt
blasters)c an causeinvisible exterior damage
to th etires or chassis components .Compo-
nent sdamaged in this way may fail unexpect-
edly. Thereisar iskofana ccident.
Do no tuse power washers withc ircular jet
nozzles to clean th evehicle .Haved amaged
tires or chassis components replaced imme-
diately.
!Do no tuse acidic wheel cleanin gproducts
to remove brak edust.T his coul ddamage
wheel boltsa nd brakecomponents.
!Do no tpark th evehicle for an extended
period straigh tafter cleanin git, particularly
after having cleane dthe wheelsw ithwheel
cleaner. Wheelc leaners couldcause
increased corrosion of th ebrak ediscsa nd
brak epads/linings. For this reason,y ou
should driv efor afew minute safter cleaning.
Brakin gheatst hebrak ediscsa nd thebrake
pads/linings, thus dryin gthem. The vehicle
can then be parked.
Cleaning th ewindows
GWARNING
You coul dbecome trapped by th ewindshield
wipersift heys tart moving while cleanin gthe
windshield or wiper blades.T hereisarisko f
injury.
Always switch off th ewindshield wipersa nd
th ei gnition before cleanin gthe windshield or
wiper blades.
!Do no tuse dry cloths, abrasive products,
solvents or cleanin gagents containing sol-
vents to clean th einside of th ewindows. Do
no ttou ch th einsides of th ewindows with
hard objects, e.g .anice scrape rorring. There
is otherwise ariskofd amaging th ewindows.
!Clean th ewaterdrainage channels of the
windshield and th erear window at regular
intervals. Deposits suchasl eaves, petals and
pollenm ay undercertain circumstances pre- ven
twate rfromd raining away. This can lead
to corrosion damagea nd damagetoelec-
tronic components.
XClean th einside and outside of th ewindows
withad amp cloth and acleanin gproduct that
is recommended and approved by Mercedes-
Benz.
Cleaning wiper blades
GWARNING
You coul dbecome trapped by th ewindshield
wipersift heys tart moving while cleanin gthe
windshield or wiper blades.T hereisarisko f
injury.
Always switch off th ewindshield wipersa nd
th ei gnition before cleanin gthe windshield or
wiper blades.
!Do no tpull th ewiper blade. Otherwise, the
wiper blade coul dbedamaged.
!Do notclean wiper blades to ooften and do
no trub them to ohard .Otherwise, th egraph-
ite coatin gcoul dbed amaged. This could
caus ewiper noise.
!Holdthe wiper arm securely when folding
back .The windshield coul dbedamaged if the
wiper arm smacks against it suddenly.
XFol dthe windshield wiper arm saway from the
windshield (Ypage 116).
XCarefully clean th ewiper blades withad amp
cloth.
XFol dthe windshield wiper arm sback again
before switching on th eignition.
Cleaning th eexterior lighting
!Only use cleanin gagents or cleanin gcloths
whicha re suitable for plastic light lenses.
Unsuitable cleanin gagents or cleanin gcloths
coul dscratch or damag ethe plastic light len-
ses.
XClean th eplastic lenses of th eexteri or light-
ing usingaw et sponge and amild cleaning
agent, e.g .Mercedes-Ben zcar shampoo or
cleanin gcloths.
Care295
Maintenance and care
Z

XFold both plates upwards:.
XFold outlower plate ;.
XGuide the lugs on the lower plate fully into the
openings in base plate =.
XPlace chocks or other suitabl eitems under
the front and rearoft he wheel that is diago-
nally opposite the wheel yo uwishtoc hange.
Raising the vehicle
GWARNING
If yo udon ot positio nthe jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is arisk of injury.
Only positio nthe jack at the appropriate jack-
ing point of the vehicle. The base of the jack
mus tbep ositioned vertically ,directly under
the jacking point of the vehicle.
!The jack is designe dexclusively for jacking
up the vehicle at the jacking points. Other-
wise, your vehicle could be damaged.
Observe the following whe nraising the vehi-
cle:
RTo raise the vehicle, only use the vehicle-spe-
cifi cjack that has bee ntested and approved
by Mercedes-Benz. If use dincorrectly ,the
jack could tip over with the vehicle raised.
RThe jack is designe donly to raise and hol dthe
vehicle for ashortt ime while awheel is being
changed. It mus tnot be use dfor performing
maintenance wor kunder the vehicle.
RAvoid changing the wheel on uphil land down-
hil lslopes.
RBeforer aising the vehicle, secure it from roll-
ing away by applying the parking brake and inserting wheel chocks. Do not disengage the
parking brake while the vehicle is raised.
RThe jack mus
tbep laced on afirm, fla tand
non-sli psurface .Onal oose surface ,alarge,
flat, load-bearing underlay mus tbeu sed. On a
slippery surface ,anon-sli punderlay mus tbe
used, e.g. rubber mats.
RDo not use wooden blocks or simila robjects
as ajack und erlay.Otherwise ,the jack will not
be able to achieve its load-bearing capacity
duetot he restricted height.
RMake sur ethat the distance between the
underside of the tires and the ground doe snot
excee d1.2 in (3 cm).
RNeve rplace your hand sand feet under the
raised vehicle.
RDo not li eunder the vehicle.
RDo not start the engine whe nthe vehicle is
raised.
RDo not ope norclosead oorort he trunk lid
whe nthe vehicle is raised.
RMake sur ethat no persons are present in the
vehicle whe nthe vehicle is raised.
Vehicles with alloy wheel sand hub caps: the
wheel bolts are covered by ahub cap .Befor eyou
can unscre wthe wheel bolts, yo umustremove
the hub cap .Two different variants can be instal-
led.
Vehicles with plasti chub cap:
XTo remove: turn the center cover of hub
cap :counter-clockwis eand remove.
XTo install: before installing, ensure that hub
cap :is in the ope nposition. To do this, turn
the center cover counter-clockwise.
XPositio nhub cap :and turn the center cover
clockwise until hub cap :engages physically
and audibly.
XMake sur ethat hub cap :is installed
securely.
Changing awheel337
Wheels and tires
Z

Vehicles with aluminum hub cap:
XTo remove:take socket;and lu gwrench
= from the vehicl etool kit (Ypage 300).
XPosition socket ;on hubc ap:.
XPosition lu gwrench =on socket ;.
XUsing lugwrench =,turn hubc ap: coun-
ter-clockwise and remove it.
XTo install: before installing, check hubc ap:
and the wheel are afor soiling and clean if
necessary.
XPuth ubcap :in position and turn unti litisin
the right position.
XPosition socket ;on hubc ap:.
XAttach lu gwrench =to socket ;and
tighten hubc ap:.
The tightening torque mus tbe
18 lb-ft (2 5Nm).
iNote that the hubc ap shouldbetightened
to the specified torque of 18 lb-ft (25 Nm).
Mercedes-Benz recommend sthat yo uhave
the hubc ap installed at aquali fied specialist
workshop.
XUsing lu gwrench =,loosent he bolts on the
wheel yo uwishtoc hange by abouto ne full
turn. Do not unscrew the bolts completely.
The jacking points are locate djust behind the
front wheel housing sand jus tinfront of the rear
wheel housing s(arrows).
Mercedes-AMG vehicle sand vehicle swith
AMG equipment: to protect the vehicl ebody,
the vehicl ehascovers installed next to the jack-
ing points on the outer sills.
XMercedes-AMG vehicle sand vehicles
with AMG equipment: foldc over ?
upwards.
XPosition jack Bat jacking point A.
338Changingawheel
Wheelsand tires

XMake sure the foot of the jack is directly
beneath the jackingpoint.
XTurn crankCclockwise until jack Bsits
completely on jackingp ointA.T he base of
the jack must lie evenly on the ground.
XTurn crank Cuntil the tire is raised amaxi-
mum of 1.2 in (3 cm) from the ground.
Removing awheel
!Mercedes-AMG vehiclesw ith ceramic-
brake disc: during removal and repositioning
of the wheel, the wheel rim can strike the
ceramic-brake disc and damage it. Therefore,
you should proceed carefully and get asec-
ond person assist to you. Alternatively, you
can use asecond alignment bolt.
!Do not place wheel bolts in sand or on adirty
surface. The bolt and wheel hub threads could
otherwise be damaged when you screw them
in.
When mounting/removing wheels, and for as
long as the wheels are removed, avoid applying
any external force on the brake disks. This could
impair the level of comfort when braking.
XUnscrew the uppermost wheel bolt com-
pletely.
XScrew alignment bolt :into the thread
instead of the wheel bolt.
XUnscrew the remaining wheel bolts fully.
XRemove the wheel.
Mounting anew wheel
GWARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel bolts to come loose. As aresult, you could
lose awheel while driving. There is arisk of
accident.
Never oil or grease wheel bolts. In the event of
damage to the threads, contact aqualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving.
GWARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is arisk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
Always pay attention to the instructions and
safety notes in the "Changing awheel" section
(
Ypage 335).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benzr ecommends that you
only use wheel bolts which have been approved for Mercedes-Benzv ehicles and the respective
wheel.
!Mercedes-AMG vehiclesw ith ceramic-
brake disc: during removal and repositioning
of the wheel, the wheel rim can strike the
ceramic-brake disc and damage it. Therefore,
you should proceed carefully and get asec-
ond person assist to you. Alternatively, you
can use asecond alignment bolt.
!To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
Changing awheel339
Wheels and tires
Z

XClean thewheel and wheel hub contact sur-
faces.
XSlid ethe wheel to bemounte dontot he align-
men tbolt and push iton.
XTighte nthe wheel boltsuntilthey are finger-
tight.
XUnscrew th ealignmen tbolt.
XTighte nthe last wheel boltuntil it is finger-
tight.
Lowering th evehicle
GWAR NING
The wheelsc ouldwork looseift hewheel nuts
and boltsare no ttightened to th especifie d
tightening torque. Thereisar iskofa cciden t.
Hav ethe tightening torque immediately
checked at aqualified specialist workshop
after awheel ischanged.
XTurn th ecrank of th ejackc ounter-clock wise
unt ilth ev ehicle is once again standing firmly
on th eground.
XPlacet hejacktoo neside.
XTighte nthe wheel boltsevenly inac rosswise
pattern inthes equenc eindicated (: toA). The specifie
dtightening torque is 96lb-ft
(1 30 Nm) .
XTurn th ejackb ack to its initial position.
XStow th ejac ka nd th erestoft hevehicle tools
in thet runk again.
XMercedes-AM Gvehicles and vehicles
with AMG equipment: insert thecover into
th eo uter sill.
XCheckt hetirep ressureoft henewly mounted
wheel and adjust it if necessary.
Observ ethe recommended tir epressure
(
Ypage 319).
When you are driving withthe collapsible spare
wheel mounte d,thet irep ressurel oss warning
system or th etirep ressurem onitorcanno tfunc-
tio nr eliably. Only restartthe tirep ressurel oss
warning system or tir epressurem onitorwhen
th ed efective wheel has been replace dwitha
ne ww heel.
Vehicles with atirep ressure control sys-
tem: all installed wheelsm ust be equippedwith
functioning sensors.
Wheel-tire combination
You can ask for informatio nregardin gpermitted
wheel-tire co mbinations at an authorized
Mercedes-Ben zCenter.
!For safety reasons, Mercedes-Ben zrecom-
men dsthat you only use tires and wheels
whic hhave been approvedbyM ercedes-Benz
specifically for your vehicle.
Theset ires have been specially adapted for
use witht hecontrol systems ,suchasA BSor
ESP
®,a nd are marke dasfollows:
RMO= Mercedes-Ben zOriginal
RMOE = Mercedes-Ben zOriginal Extended
(tires featurin grun-flat characteristics)
RMO1 = Mercedes-Ben zOriginal (only cer-
tain AM Gtires)
Mercedes-Ben zOriginal Extende dtires may
only be used on wheelst hath ave been spe-
cificall yapprove dbyMercedes-Benz.
Only use tires, wheelsora ccessoriestested
and approve dbyMercedes-Benz. Certain
characteristics, e.g .handling, vehicle noise
emissionsorf uel consumption,m ay other-
wise be adverselyaffected. In addition,w hen
driv ingwithal oad, tir edimension variations
could caus ethe tires to come int ocontac t
340Wheel-tirec ombination
Wheels and tires