2021 MERCEDES-BENZ EQC SUV Owners Manual

#
Avoid obs tacles or drive overth em with
particular care. #
Reduce speed when driving overke rbs,
speed bumps, manhole co vers and pot‐
holes. #
Avoid especially high kerbs. *
NO
TEDama getoelectronic component
parts from the use of tyre-fitting tools Ve
hicles with a tyre pressure monitoring
sy stem: electronic component parts are
located in the wheel. Tyre-fitting tools should
not be applied in the area of theva lve.
The tools could damage the electronic com‐
ponent parts. #
Have the tyres changed at a qualified
specialist workshop onl y. *
NO
TEDama getosummer tyres at low
ambient temp eratures At
low ambient temp eratures, tears could
fo rm when driving with summer tyres, caus‐
ing permanent damage tothe tyre. #
Attemp eratures below 7 °C, use M+S
tyres. Ac
cessory pa rts th at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or are not being used
cor rectly can impair the operating saf ety.
Before pu rchasing and using non-appr oved
accesso ries, visit a qualified specialist workshop
and enquire about thefo llowing:
R Suitability
R Legal stipulations
R Factory recommendations &
WARNING Risk of accident wi thhigh
per form ance tyres
There is an inc reased risk of skidding and
aquaplaning when using sport tyres on wet
ro ads. In addition,
the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Activate ESP ®
and adapt your driving
st yle accordingly. #
Use M+S tyres at outside temp eratures
below 10°C. #
Only use the tyres forth eir intended
purpose. Obser
vethefo llowing when selecting, fitting and
re placing tyres:
R Countr y-specific requirements for tyre
appro valth at define a specific tyre type for
yo ur vehicle.
Fu rthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can
be highly beneficial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOEx tended
tyres) and the same make.
R Only fit wheels of the same size on one axle
(left and right). 334
Wheels and tyres

It is only permissible
tofit a di fferent wheel
size in theev ent of a flat tyre in order to
drive tothe specialist workshop.
R Only fit tyres of the cor rect size onto the
wheels.
R Do not make any modifications tothe brake
sy stem, the wheels or the tyres.
The use of shims or brake dust shields is not
permitted and may in validate theve hicle's
ge neral operating pe rmit.
R Vehicles with a tyre pressure monitoring
sy stem: allfitted wheels mu stbe equipped
with functioning sensors forth e tyre pres‐
sure monitoring sy stem.
R Attemp eratures below 7°C use winter tyres
or all-season tyres mar ked M+S for all
wheels.
Wi nter tyres bearing thei snowflake
symbol in addition tothe M+S marking pro‐
vide the best possible grip in wintry road
conditions.
R For M+S tyres, only use tyres with the same
tread. R
Obser vethe maximum permissible speed for
th e M+S tyres fitted.
If th is is below theve hicle's maximum speed,
th is must be indicated byan appropriate
label in the driver's field of vision.
R Run in new tyres at moderate speeds forthe
fi rs t10 0 km.
R Replace the tyres af ter six years at the latest,
re ga rdless of wear.
Fo r more information on wheels and tyres, con‐
tac t a qualified specialist workshop.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 329)
R Tyre pressure table (/ page 330)
R Notes on the emer gency spa rewheel
(/ page 342) Note
s on inter changing wheels &
WARNING Risk of inju rythro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels can
se verely impair the driving characteristics.
The disk brakes or wheel suspension compo‐
nents may also be damaged. #
Onlyinter change the front and rear
wheels if the wheels and tyres ha vethe
same dimensions. Inter
changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions can
re nder thege neral operating pe rmit in valid.
The wear pat tern s on the front and rear wheels
dif fer:
R front wheels wear more on the tyre shoulder
R rear wheels wear more in the cent reofthe
tyre
Do not drive wi thtyres that ha vetoo little tread
dep th. This significantly reduces traction on wet
ro ads (aquaplaning). Wheels and tyres
335

On
vehicles with the same front and rear wheel
size, you can inter change the wheels every
5000 to10,000 km, depending on thewe ar.
Ensure the direction of rotation is maintained for
th e wheels.
Obser vethe instructions and saf ety no tes on
"Changing a wheel" when doing so
(/ page 337). Note
s onstoring wheels When
storing wheels, obser vethefo llowing
no tes:
R Afterre moving wheels, store them in a cool,
dry and preferably dark place.
R Protect the tyres from conta ct withoil,
grease or fuel. Overview of
the ty re-change tool kit Apart from some countr
y-specific variants, vehi‐
cles are not equipped with a tyre-change tool kit.
Fo r more information on which tyre-changing
to ols are requ ired and appr ovedfo r per form ing a wheel
change on your vehicle, consult a qualified
specialist workshop.
Yo ure qu ire thefo llowing tools, forex ample, to
ch ange a wheel:
R Car jack
R Chock
R Wheel wrench
R Cent ring pin
% The jack weighs appr oximately 3.4 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 load
compartment floor. 1
Car jack
2 Ratchet for jack
3 Folding chock
4 Wheel wrench
5 Centring pin
6 Socket wrench forra tchet 336
Wheels and tyres

Preparing
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.
R The vehicle is not on a slope.
R The vehicle is on solid, non-slippery and le vel
ground. #
Apply the electric parking brake manually. #
Movethe front wheels tothest ra ight-ahead
position. #
Shift the transmission toposition j. #
Switch off the drive sy stem. #
Make sure that the drive sy stem cann otbe
st ar ted. #
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. #
Raise theve hicle (/ page 337). 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 (/ page 337).
Important no tes on using the jack:
R Use only a vehicle-specific jack that has
been appr ovedby Mercedes-Benz toraise
th eve 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. Wheels and tyres
337

R
Do not start the drive sy stem and do not
re lease the electric parking brake.
R Do not open or close any doors or thetai l‐
ga te. #
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. Po
sition of jack support points Co
ver of jack support points
Before positioning the jac k,you must remo ve
th e co vers forth e jack support points. #
Toremo ve:turn clip 1onthe co ver one
qu arter turn and remo ve. #
Pull the co ver down wards using handle 2
until the co verre leases at theto p of the lon‐
gitudinal member panel. 338
Wheels and tyres

#
Remo vethe co ver. Co
ver of jack support points #
Tofit: inse rttabs 3 ofthe co ver into the
re cesses of the longitudinal member panel
and press the co vers closed. #
Insert retaining clip 1into the co ver,as
shown in the illustration, until you hear it
en gage inthefloor bush.
Make sure that thefloor bush in theve hicle
is cor rectly aligned tothe co ver. &
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. #
Only position the jack at the appropri‐
ate jacking point of theve hicle. The
base of the jack must be positioned ve
rtically under the jacking point of the
ve hicle. *
NO
TEDama getotheve hicle due to
using an unsuitable jack Yo
u can damage theve hicle and, in particular
th e high-voltage batter y,ifyo u use a jack
th at is not specifically designed forth e jack
support points of theve hicle. #
Only use jac ksthat are specifically
designed forth e jack support points, or
use an appropriate adap ter. *
NO
TERisk of dama getotheve hicle due
to incor rect positioning of the jack If
yo u do not position the jack at the designa‐
te d jack support points, you could damage
yo ur vehicle and, in particular, the high-volt‐
age batter y. #
Only position the jack at the designated
jack support points. Wheels and tyres
339

#
Take thera tchet out of the tyre-change tool
kit and place it on the he xagon nut of the
jack so that the letters "AUF" are visible. #
Position support 5of jack 7on jack sup‐
port point 4. #
Turn ratchet 6clockwise until support 5
sits comple tely on jack support point 4and th
e base of the jack lies evenly on the
ground. #
Turn ratchet 6until the tyre is raised a max‐
imum of 3 cm from the ground. #
Loosen and remo vethe wheel (/ page 340). Re
moving a wheel Re
quirements:
R The vehicle is raised (/ page 337).
When changing a wheel, avoid applying any force
to the brake discs, as this could impair the le vel
of comfort when braking.
* NO
TEDama getothre ading from dirt on
wheel bolts #
Do not place wheel bolts in sand or on
a dirty sur face. #
Unscr ew the uppermost wheel bolt com‐
ple tely. #
Screw centring pin 1into theth re ad
ins tead of the wheel bolt. #
Unscr ew there maining wheel bolts com‐
ple tely. #
Remo vethe wheel. Fi
tting a new wheel &
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. 340
Wheels and tyres

#
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. #
Obser vethe information on thech oice of
tyres (/ page 332).
Fo r tyres with a specified direction of rotation,
an ar row on the side wall of the tyre indicates
th e cor rect di rection of rotation. Obse rvethe
direction of rotation when fitting. #
Slide the wheel tobe mounted onto the cen‐
tring pin and push it on. &
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. #
Only tighten wheel bolts or wheel nuts
when theve hicle is on the ground. #
Be sure toobser vethe instructions and
saf ety no tes on "Changing a wheel"
(/ page 332). #
For saf etyre asons, on lyuse wheel bolts
which ha vebeen appr ovedby Mercedes-
Benz and forth e wheel in question. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated until they are
fi nger-tight. #
Unscr ew and remo vethe cent ring pin. #
Tighten the last wheel bolt until it is finger-
tight. #
Lowe rth eve hicle (/ page 341). Lo
weri ngtheve hicle af ter a wheel change Re
quirements:
R The new wheel has been fitted
(/ page 340). #
Tolowe r the vehicle: placethera tchet onto
th e he xagon nut of the jack so that the let‐
te rs "AB" are visible and turn anti-clockwise. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated 1to5 with
an initial maximum forc e of 80 Nm. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated 1to5 to
th e specified tightening torque of 150 Nm. Wheels and tyres
341