2018 MERCEDES-BENZ C-CLASS SALOON Owners Manual

Fo
r more information on which tyre-changing
to ol kits are required and appr oved for per form‐
ing a wheel change on your vehicle, consult a
qu alified specialist workshop.
Yo ure qu ire thefo llowing tools, for ins tance, to
ch ange a wheel:
R jack
R chock
R wheel wrench
R centri ng pin
0009 The jack weighs appr oximately 2.1 kg.
The maximum load capacity of the jack can
be found on thest icke r af fixe dto the jac k.
The jack is maintenance-free. If there is a
malfunction, please conta ct aqualified spe‐
cialist workshop.
The tyre-change tool kit is located under the
boot floor. 1
Wheel wrench
2 Folding chock
3 Jack Setting up
thefo lding chock Prepa
ring theve hicle for a wheel change Re
quirements:
R The requ ired tyre-change tool kit is available.
If yo ur vehicle is not equipped with the tyre-
ch ange tool kit, consult a qualified specialist
wo rkshop tofind out about suitable tools. 462
Wheels and tyres

R
The vehicle is not on a slope.
R The vehicle is on solid, non-slippery and le vel
ground. 0007
Apply the electric parking brake manually. 0007
Movethe front wheels tothest ra ight-ahead
position. 0007
Vehicles with manual transmission:
engage firs t or reve rsege ar. 0007
Vehicles with automatic transmission:
shift into position 005D. 0007
Vehicles with le vel control sy stem: setthe
normal vehicle le vel (0013 page 234). 0007
Swit choff the engine. 0007
Make sure that the engine cann otbe star ted. 0007
Place choc ks orother suitable items under
th e front and rear of the wheel that is diago‐
nally opposite the wheel you wish tochange. 0007
Remo vethe hub caps if necessary
(0013 page 463). 0007
Raise theve hicle (0013 page 464). Re
moving and fitting hub caps Re
quirements:
R The vehicle is prepared for a wheel change
(0013 page 462).
Ve hicles with steel wheels
The wheel trim co vers the wheel bolts. Before
yo u can unscr ewthe wheel bolts, you must
re mo vethe wheel trim. 0007
Toremo ve:using bo thhands, carefully reach
into two wheel trim openings and remo vethe
wheel trim. Plastic hub cap 0007
Toremo ve:turn the cent recover of the hub
cap anti-clockwise and remo vethe hub cap. 0007
Tofit: make sure that the cent recover of the
hub cap is turned anti-clockwise. 0007
Position the hub cap and turn the cent re
co ver clockwise until the hub cap engages
ph ysically and audibly.
Aluminium hub cap 0007
Toremo ve:position soc ket2 on hub cap
1. Wheels and tyres
463

0009
The soc ket can be found in the tyre-change
to ol kit. 0007
Position wheel spanner 3on soc ket2. 0007
Using wheel spanner 3, turn hub cap1
anti-clo ckwise and remo veit. 0007
Tofit: position hub cap 1and turn until it is
comple tely flush with the wheel. 0007
Position soc ket2 on hub cap 1. 0007
Attach wheel spanner 3tosoc ket2 and
tighten the hub cap clockwise.
Specified tightening torq ue: 25 Nm. Ra
ising theve hicle when changing a wheel Re
quirements:
R There are no persons in theve hicle.
R The vehicle has been prepared for a wheel
ch ange (0013 page 462).
R The hub caps ha vebeen remo ved
( 0013 page 463). Impor
tant no tes on using the jack:
R Use only theve hicle-specific jack that has
been tested and appr ovedby Mercedes-Benz
to raise theve hicle.
R The jack is only designed forra ising and
holding theve hicle for a short time while a
wheel is being changed and not for mainte‐
nance workunder theve hicle.
R The jack must be placed on a firm ,fl at and
non-slip sur face. If necessar y,use a lar ge,
fl at, load-bearing, non-slip unde rlay.
R The foot ofthe jack must be positioned verti‐
cally under the jack support point. Ru
les of conduct when theve hicle is raised:
R Never place your hands or feet under the
ve hicle.
R Never lie under theve hicle.
R Do not start the engine and do not release
th e electric parking brake.
R Do not open or close any doors or the boot
lid. 0007
Using the wheel wrench, loosen the wheel
bolts on the wheel you wish tochange by
about one full turn. Do not unscr ewthe bolts
comple tely. 464
Wheels and tyres

Po
sition of jack support points
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers. 000A
WARNING Risk of inju ryfrom incor rect
positioning of the jack
If yo u do not position the jack cor rectly at
th e appropriate jacking point of theve hicle,
th e jack could tip with theve hicle raised. 0007
Only position the jack at the appropri‐
ate jacking point of theve hicle. The
base of the jack must be positioned ver‐ tically under
the jacking point of the
ve hicle. 000E
NO
TEVehicle damage from the jack If
yo u do not position the jack cor rectly at
th e appropriate jack support point of the
ve hicle, the jack could tip over with theve hi‐
cle raised. 0007
The jack is designed exclusively for
jacking up theve hicle at the jack sup‐
port points. 0007
Position jack 2at jack support point 1. 0007
Turn crank 3clockwise until jack 2sits
compl etely on jack support point 1and the
base of the jack lies evenly on the ground. 0007
Turn crank 3until the tyre is raised a maxi‐
mum of 3 cm from the ground. 0007
Loosen and remo vethe wheel
(0013 page 466). Wheels and tyres
465

Re
moving a wheel Re
quirements:
R The vehicle is raised (0013 page 464).
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers.
When changing a wheel, avoid applying any force
to the brake discs, since this could impair the
le ve l of com fort when braking.
000E NO
TEDama getothre ading from dirt on
wheel bolts 0007
Do not place wheel bolts in sand or on
a dirty sur face. 0007
Unscr ew the uppermost wheel bolt com‐
ple tely. 0007
Screw centring pin 1instead of the wheel
bolt into theth re ading. 0007
Unscr ew there maining wheel bolts fully. 0007
Remo vethe wheel. 0007
Fitthe new wheel (0013 page 466). Fi
tting a new wheel Re
quirements:
R The wheel is remo ved (0013 page 466).
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers. 000A
WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut thre ads or wheel hub/wheel mounting
bolt thre ads can cause the wheel bolts/
wheel nuts tocome loose.
As a result, you could lose a wheel while driv‐
ing. 0007
Never oil or grease theth re ads. 0007
Intheeve nt of dama getotheth re ads,
con tact a qualified specialist workshop
immediatel y. 0007
Have the damaged wheel bolts or dam‐
aged hub thre ads replaced. 0007
Do not continue driving. 0007
Obser vethe information on thech oice of
tyres (0013 page 458).
Fo r tyres with a specified direction of rotation,
an ar rowonthe side wall of the tyre indicates
th e cor rect di rection of rotat ion. Obser vethe
direction of rotation when fitting. 466
Wheels and tyres

0007
Slide the wheel tobe mounted onto the cen‐
tring pin and push it on. 000A
WARNING Risk of inju ryfrom tightening
wheel bolts and nuts
If yo u tighten the wheel bolts or wheel nuts
when theve hicle is raised, the jack could tip. 0007
Only tighten wheel bolts or wheel nuts
when theve hicle is on the ground. 0007
Be sure toobser vethe instructions and
saf ety no tes on "Changing a wheel"
(0013 page 458). 0007
For saf etyre asons, on lyuse wheel bolts
which ha vebeen appr ovedby Mercedes-
Benz and forth e wheel in question. 0007
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated until they are
fi nger-tight. 0007
Unscr ew the cent ring pin. 0007
Tighten the last wheel bolt until it is finger-
tight. 0007
Ifth e collapsible emer gency spa rewheel has
been fitted, infla tethe collapsible emer gency
spa rewheel (0013 page 469). 0007
Lowe rth eve hicle (0013 page 467). Lo
weri ngtheve hicle af ter a wheel change Re
quirements:
R The new wheel has been fitted
(0013 page 466).
000E NO
TEDama getothe emer gency spa re
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously
inflating the emer gency collapsible spa re
wheel can damage its rim. 0007
Inflate the emer gency collapsible spa re
wheel using the tyre inflation compres‐
sor before lo wering theve hicle. 0007
Tolowe r the vehicle: turnthe crank of the
jack anti-clo ckwise until theve hicle is once
again standing firm lyon the ground. 0007
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated (1 to5 ).
Specified tightening torq ue: 130 Nm. 000A
WARNING Risk of inju rythro ugh incor‐
re ct tigh tening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed tightening torque. 0007
Makesure the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. 0007
Ifyo u are not sure, do not mo vethe
ve hicle. Consult a qualified specialist Wheels and tyres
467

wo
rkshop and ha vethe tightening tor‐
qu ech ecked immediately. 0007
Check the tyre pressure of the newly moun‐
te d wheel and adjust according ly.0007
Vehicles with tyre pressure loss warning
sy stem: restart the tyre pressure loss warn‐
ing sy stem (0013 page 457).
Exception: the new wheel is an emer gency
spa rewheel. 0007
Vehicles with a tyre pressure monitoring
sy stem: restart the tyre pressure monitoring
sy stem (0013 page 452).
Exception: the new wheel is an emer gency
spa rewheel.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tyre pressure (0013 page449) Emer
gency spare wheel Note
s onthe emer gency spare wheel 000A
WARNING Risk of accident caused by
incor rect wheel and tyre dimensions
The wheel or tyre size and the tyre type of
th e emer gency spa rewheel or spare wheel
and the wheel tobe replaced may dif fer.
Mounting an emer gency spa rewheel/spare
wheel may se verely impair the driving char‐
acteristics.
To preve nt hazardous situations: 0007
Adapt your driving style according lyand
drive carefull y. 0007
Neverfit more than one emer gency
spa rewheel or spare wheel that dif fers
in size. 0007
Only use an emer gency spa rewheel or
spare wheel of a dif fere nt size brie fly. 0007
Do not switch off ESP ®
. 0007
Have the emer gency spa rewheel or
spare wheel of a dif fere nt size replaced
at the nearest qualified specialist work‐ shop. The new wheel must ha
vethe
cor rect dimensions. Check
the tyre pressure of the emer gency spa re
wheel fitted. Co rrect the pressure as necessar y.
The maximum permissible speed with an emer‐
ge ncy spa rewheel fitted is 80 km/h.
Do not fit th e emer gency spa rewheel with sn ow
ch ains.
Re place the emer gency spa rewheel af ter six
ye ars at the latest, rega rdless of wear.
0009 Ve
hicles with a tyre pressure loss warn‐
ing sy stem: If an emer gency spa rewheel is
fi tted the tyre pressure loss warning sy stem
cann otfunction reliabl y.Only restart the sys‐
te m again when the emer gency spa rewheel
has been replaced with a new wheel.
Ve hicles with a tyre pressure monitoring
sy stem: If an emer gency spa rewheel is fit‐
te dth e tyre pressure monitoring sy stem can‐
not function reliabl y.Only restart the sy stem
again when the emer gency spa rewheel has
been replaced with a new wheel. 468
Wheels and tyres

Ve
hicles with a tyre pressure monitoring
sy stem: For a few minutes af ter an emer‐
ge ncy spa rewheel is fitted, the sy stem may
st ill display the tyre pressure of there mo ved
wheel.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (0013 page449)
R Tyre pressure table (0013 page 450) Re
moving the eme rgency spa rewheel The eme
rgency spare wheel is secured in the
emer gency spa rewheel bag in the boot. 0007
Obser vethe information on mounting tyres
(0013 page 458). 0007
Open the boot. 0007
Detach thefast ening stra ps. 0007
Unhook there taining spring hooks of thefa s‐
te ning stra ps from the brac kets. 0007
Remo vethe emer gency spa rewheel bag with
th e emer gency spa rewheel. 0007
Open the emer gency spa rewheel bag and
re mo vethe emer gency spa rewheel. Collapsible spa
rewheel Inflating
the collapsible emer gency spare
wheel 000E
NO
TEDama getothe collapsible spare
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously
inflating the collapsible spare wheel can
damage its rim. 0007
Inflate the collapsible spare wheel using
th e tyre inflation compressor before
lo we ring theve hicle. 000E
NO
TEOverheating due tothe tyre infla‐
tion compressor running too long 0007
Do not runth e tyre inflation compres‐
sor for longer than eight minutes with‐
out inter ruption. Re
quirements:
R Obser vethe manufacturer's saf ety no tes on
th e tyre inflation compressor label and on
th e tyre sealant bottle.
R Mount the collapsible emer gency spa re
wheel as desc ribed (0013 page 466).
The collapsible emer gency spa rewheel must
be moun ted before it is inflated.
R Remo vethe tyre inflation compressor from
th estow age space under the boot floor
(0013 page 429). Wheels and tyres
469