MERCEDES-BENZ A-CLASS HATCHBACK 2021 Owners Manual

The
tool bag contains:
R Jack
R Gloves
R Wheel wrench
R Centring pin
R Folding chock
R Ratchet for jack Pr
Pr
epar
epar ing t
ing t he v
he vehicle f
ehicle f or a wheel c
or a wheel c hange
hange R
R
eq
eq uir
uir ements:
ements:
R The vehicle is not on a slope. R
The vehicle is on solid, non-slippery and le vel
gr ound.
R The requ ired tyre-change tool kit is available.
% Ifyo ur vehicle is not equipped with the tyre-
ch ange tool kit, consult a quali/ed specialist
wo rkshop to/nd out about sui table tools. #
Apply the electric parking brake manuall y. #
Movethe front wheels tothe straight-ahead
position. #
V
V ehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: engage
/rst or reve rsege ar. #
V
V ehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: shiTto
position j. #
Switch o. theve hicle. #
Make sure that theve hicle cann otbe star ted. #
Place choc ks orother suitable items under the
front and rear of the wheel that is diagonal ly
opposite the wheel you wish tochange. #
If necessar y,remo vethe wheel trim/hub caps
(/ page 378). #
Raise theve hicle (/ page 379). R
R
emo
emo ving and
ving and /tting
/ttingt
the wheel tr
he wheel tr im/hub caps
im/hub caps R
R
eq
eq uir
uir ements:
ements:
R The vehicle is prepared for a wheel change
(/ page 378).
Wheel tr
Wheel tr im
im
The wheel trim co vers the wheel bolts on vehicles
with steel wheels. Before unscr ewing the wheel
bolts, remo vethe wheel trim. #
T
To r
o r emov
emov e:
e:using bo thhands, carefully reach
into two wheel trim openings and remo vethe
wheel trim. 378
378
Wheels and tyres

Plas
Plastic hub cap
tic hub cap #
T
To r
o r emov
emov e:
e:turn the centre co ver of the hub
cap anti-clockwise and remo vethe hub cap. #
T To o /t:
/t: make sure that the centre co ver of the
hub cap is turned anti-clockwise. #
Position the hub cap and turn the centre co ver
clockwise until the hub cap engages ph ysically
and audibl y.
Aluminium hub cap
Aluminium hub cap #
T
To r
o r emov
emov e:
e:position soc ket2 from the tyre-
ch ange tool kit on hub cap 1. #
Position wheel spanner 3on soc ket2. #
Using wheel spanner 3, turn hub cap1
anti-clockwise and remo veit. #
T
To
o /t:
/t: follow the inst ructions abo veinreve rse
order.
% Speci/ed
Speci/ed tight
tightening t
ening t orq
orque:ue: 25 Nm. R
R
aising t
aising t he v
he vehicle when c
ehicle when c hanging a wheel
hanging a wheel R
R
eq
eq uir
uir ements:
ements:
R There are no persons in theve hicle.
R The vehicle has been prepared for a wheel
ch ange (/ page 378).
R The wheel trims and hub caps ha vebeen
re mo ved (/ page 378).
Impor tant no tes on using the jack:
R Use only a vehicle-speci/c jack that has been
appr ovedby Mercedes-Benz toraise theve hi-
cle.
R The jack is only designed forra ising and hold-
ing theve hicle for a short time while a wheel
is being changed and not for maintenance
wo rkunder theve hicle. R
The jack must be placed on a /rm, 0at and
non-slip sur face. If necessar y,use a lar ge, 0at,
load-bearing, non-slip underla y.
R The foot ofthe jack must be positioned verti-
cally under the jack support point. Wheels and tyres
379
379

Ru
les of conduct when theve hicle is raised:
R Never place your hands or feet under theve hi-
cle.
R Never lie under theve hicle.
R Do not start theve hicle and do not release the
electric parking brake.
R Do not open or close any doors or theta ilgate. #
Using the wheel wrench, loosen the wheel
bolts on the wheel you wish tochange by
about one full turn. Do not unscr ewthe
scr ews comple tely. Po
sition of jack support points
* N
NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. &
W
WARNING
ARNING Risk of injury from incor rect
positioning of the jack
If yo u do not position the jack cor rectly at the
appropriate jacking point of theve hicle, the
jack could tip wi th theve hicle raised. #
Only position the jack at the appropriate
jacking point of theve hicle. The base of th
e jack must be positioned vertically
under the jacking point of theve hicle. *
N
NOOTE
TE Vehicle damage from the jack If
yo u do not position the jack cor rectly at the
appropriate jack support point of theve hicle,
th e jack could tip over with theve hicle raised. #
The jack is designed exclusively for jac k-
ing up theve hicle at the jack support
points. #
Take thera tchet out of the tyre-change tool kit
and place it on the he xagon nut of the jack so
th at the letters "AUF" are visible. 380
380
Wheels and tyres

#
Position support 2of jack 4on jack sup-
port point 1.
% Ifth ere is a tota l loss of pressure in a tyre, it
may be possible that the jack cannot be posi-
tioned at jack support point 1. Inthis case,
unload theve hicle. #
Turn ratchet 3clockwise until support 2
sits comple tely on jack support point 1and
th e base of the jack lies evenly on thegr ound. #
Turn ratchet 3until the tyre is raised a maxi-
mum of 3 cm from thegr ound. #
Loosen and remo vethe wheel (/ page 381). R
R
emo
emo ving a wheel
ving a wheel R
R
eq
eq uir
uir ements:
ements:
R The vehicle is raised (/ page 379).
* NO
NOTE
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. When
changing a wheel, avoid applying any force
to the brake disks, as this could impair the le vel of
comfort when braking. *
N
NOOTE
TE Damage tothre ading from dirt on
wheel bolts #
Do not place wheel bolts in sand or on a
dirty sur face. #
Unscr ewthe uppermost wheel bolt com-
ple tely. #
Screw cent ring pin 1into theth re ad ins tead
of the wheel bolt. #
Unscr ewthere maining wheel bolts com-
ple tely. #
Remo vethe wheel and, if necessar y,store it in
th e load compartment. Wheels and tyres
381 381

#
Notes on removing an emer gency spa rewheel
(/ page 383). F
F
itting a ne
itting a ne w wheel
w wheel R
R
eq
eq uir
uir ements:
ements:
R The wheel tobe changed is remo ved and the
cent ring pin is sc rewe d in (/ page 381).
* NO
NOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. &
W
WARNING
ARNING 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. #
Never oil or grease theth re ads. #
Intheev ent of damage totheth re ads,
contact a quali/ed 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 373).
Fo r tyres with a speci/ed direction of rotation, an
ar ro w on the side wall of the tyre indicates the
cor rect direction of rotation. Obser vethe direc-
tion of rotation when /tting. #
Slide the wheel tobe mounted onto the cen-
tring pin and push it on. #
Obser vethe no tes on /tting an emer gency
spa rewheel (/ page 383). &
W
WARNING
ARNING 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 thegr ound. #
Obser vethe inst ructions and saf ety no tes on
"Changing a wheel" (/ page 373). #
For saf etyre asons, only use wheel bolts which
ha ve been appr oved byMercedes-Benz and
fo rth e wheel in question. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated until they are
/nger-tight. #
Unscr ewand remo vethe centring pin. #
Tighten the last wheel bolt until it is /n ger-
tight. #
Lowe rth eve hicle (/ page 382). Low Low
er
ering t
ing t he v
he vehicle
ehicle aTer
aTera wheel c
a wheel c hange
hange R
R
eq
eq uir
uir ements:
ements:
R The new wheel has been /tted (/ page 382).382
382
Wheels and tyres

*
N
N O
OTE
TE Damage tothe emer gency spa re
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously in0at-
ing the emer gency collapsible spa rewheel can
damage its rim. #
In0a tethe emer gency collapsible spa re
wheel using the tyre in0ation compressor
before lo wering theve hicle. #
T To low o low er t
er the v
he v ehicle:
ehicle: placethera tchet onto
th e he xagon nut of the jack so that the letters
"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 with
th e speci/ed tightening torque of 130 Nm. &
W
WARNING
ARNING Risk of accident due toincor-
re ct tightening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed torque. #
Ensure that the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. #
Ifyo u are not sure, do not mo vetheve hi-
cle. Con tact a quali/ed specialist work-
shop and ha vethe tightening torque
ch ecked immediatel y. #
Check the tyre pressure of the ne wly/tted
wheel and adjust it if necessar y.%
The following does not apply if the new wheel
is an emer gency spa rewheel. #
V
Vehicles wit
ehicles wit h tyr
h tyre pr
e pressur
essur e loss w
e loss w ar
arning sy
ning sy s-
s-
t
t em:
em: restart the tyre pressure loss warning
system (/ page 373). #
V
Vehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring sy
ing sy s-
s-
t
t em:
em: restart the tyre pressure monitoring sys-
te m (/ page 372). Emerg
Emerg
ency spar
ency spar e wheel
e wheel N
No
ot
tes on t
es on t he emerg
he emerg ency spar
ency spar e wheel
e wheel &
W WARNING ARNING Risk of accident caused by
incor rect wheel and tyre dimensions
The wheel or tyre size and the tyre type of the
emer gency spa rewheel or spare wheel and
th e wheel tobe replaced may di.er. The emer-
ge ncy spa rewheel or spare wheel can signi/-
cantly impair driving characteristics of the
ve hicle.
To prev ent hazardous situations: #
Drive carefull y. Wheels and tyres
383
383

#
Never /t more than one emer gency
spa rewheel or spare wheel that di.ers
in size. #
Only use an emer gency spa rewheel or
spare wheel brie0y. #
Do not deacti vate ESP ®
. #
Have the emer gency spa rewheel or
spare wheel of a di.erent size replaced
at the nearest quali/ed specialist work-
shop. The new wheel must ha vethe cor-
re ct dimensions. %
The emer gency spa rewheel is secured in the
emer gency spa rewheel bag in the load com-
partment.
Obser vethefo llowing no tes on removing an emer-
ge ncy spa rewheel:
R Before st owing the emer gency spa rewheel,
make sure there is no air leT in the tyre.
If necessar y,allow the air toescape.
R T
T o r
o r elease air fr
elease air fr om t
om the tyr
he tyr e:
e:remo vetheva lve
cap of the tyre. R
Press down the me tal insert in theva lve using
a pointed object, e.g. a pen.
R Screw theva lve cap onto theva lve.
Obser vethefo llowing no tes on /tting an emer-
ge ncy spa rewheel:
R The maximum permissible speed with an
emer gency spa rewheel /tted is 80 km/h.
R Do not /t the emer gency spa rewheel with
snow chains.
R Replace the emer gency spa rewheel aTer six
ye ars at the latest, rega rdless of wear.
R Check the tyre pressure of the emer gency
spa rewheel /tted. Cor rect the pressure as
necessar y.
% The speci/ed tyre pressure is stated on the
label of the emer gency spa rewheel.
% V
V ehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e loss w
e loss w ar
arning
ning
syst
syst em:
em: if an emer gency spa rewheel is /tted,
th e tyre pressure loss warning system cannot
function reliabl y.Only restart the system
again when the emer gency spa rewheel has
been replaced with a new wheel. V
V
ehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
or ing sy
ing sy s-
s-
t
t em:
em: if an emer gency spa rewheel is /tted, the
tyre pressure monitoring system cannot func-
tion reliabl y.Fo r a few minutes aTer an emer-
ge ncy spa rewheel is /tted, the system may
still display the tyre pressure of there mo ved
wheel. Only restart the system again when the
emer gency spa rewheel has been replaced
with a new wheel.
Be sure toalso obser vethefo llowing fur ther rela-
te d subjects:
R Notes on tyre pressure (/ page 369)
R Tyre pressure table (/ page 370)
R Notes on /tting tyres (/ page 373)
R Fitting an emer gency spa rewheel
(/ page 378) 384 384
Wheels and tyres

In0ating
In0ating
t
t he emerg
he emerg ency spar
ency spar e wheel
e wheel *
N
NOOTE
TE Overheating due tothe tyre in0ation
compressor running too long #
Do not runth e tyre in0ation compressor
fo r longer than ten minutes without inter-
ru ption. R
R
eq
eq uir
uir ements:
ements:
The emer gency spa rewheel has been /tted cor-
re ctl y. ( / page 378)
Comply with the manufacturer's saf ety no tes on
th e stic ker of the emer gency spa rewheel and on
th e tyre in0ation compressor. #
Remo vethe stic ker with the label 80 km/h
from the tyre in0ation compressor housing
and a1x it tothe inst rument cluster within the
driver's /eld of vision. #
Remo vethe tyre in0ation compressor from the
st ow age space under the luggage compart-
ment 0oor . (/ page 350, 349) #
Pull /ller hose 1and plug 3out of the tyre
in0ation compressor housing. #
Insert plug 7of /ller hose 1inthe soc ket
on the tyre in0ation compressor and then turn
it until plug 7engages. #
Unscr ewthe cap from theva lve on the emer-
ge ncy spa rewheel. #
Screw union nut 2of /ller hose 1onto the
va lve. #
Make sure on and o. switch 4ofthe tyre
in0ation compressor is set to 00. #
Insert plug 3in a soc ket in your vehicle.
R Cigar ette lighter soc ket R
12 V soc ket: ( / page 128)
R Obser vethe no tes on the cigar ette lighter in
th e Digital Owner's Manual
R Obser vethe no tes on soc kets: (/ page 128) #
Press the start/s top button once toswitch on
th e po wer supply (/ page 165). #
Press on and o. switch 4onthe tyre in0a-
tion compressor to II.
The tyre in0a tion compressor is switched on.
The tyre is in0ated. The tyre pressure appears
on manom eter 5. #
Pump the tyre tothe speci/ed tyre pressure.
% The speci/ed tyre pressure is stated on the
label of the emer gency spa rewheel. #
When the speci/ed tyre pressure has been
re ached, press on and o. switch 4onthe
tyre in0ation compressor to 00.
The tyre in0a tion compressor is switched o.. #
Press the start/s top button toswitch o. the
po we r suppl y. #
Ifth e tyre pressure is higher than the speci/ed
pressure, press pressure release valve button Wheels and tyres
385
385

6
until the cor rect tyre pressure has been
re ached. #
Unscr ewunion nut 2of /ller hose 1from
th eva lve. #
Screw theva lve cap of the emer gency spa re
wheel onto theva lve again. #
Stow /ller hose 1and plug 3inthe lo wer
section of the tyre in0ation compressor hous-
ing. #
Stow the tyre in0ation compressor in theve hi-
cle. Collapsible spar
Collapsible spar
e wheel
e wheelN
No
ot
tes on t
es on t he collapsible spar
he collapsible spar e wheel
e wheel&
W
WARNING
ARNING Risk of accident caused by
incor rect wheel and tyre dimensions
The wheel or tyre size and the tyre type of the
emer gency spa rewheel or spare wheel and
th e wheel tobe replaced may di.er. The emer-
ge ncy spa rewheel or spare wheel can signi/-
cantly impair driving characteristics of the
ve hicle. To
prev ent hazardous situations: #
Drive carefull y. #
Never /t more than one emer gency
spa rewheel or spare wheel that di.ers
in size. #
Only use an emer gency spa rewheel or
spare wheel brie0y. #
Do not deacti vate ESP ®
. #
Have the emer gency spa rewheel or
spare wheel of a di.erent size replaced
at the nearest quali/ed specialist work-
shop. The new wheel must ha vethe cor-
re ct dimensions. %
The collapsible spare wheel is secured in the
collapsible spare wheel bag in the load com-
partment.
% The collapsible spare wheel is only available in
cer tain countries.
Obser vethefo llowing no tes on /tting an emer-
ge ncy spa rewheel:
R The collapsible spare wheel is an emer gency
spa rewheel which is only suitable for use for a limited period of time and in a
restric ted man-
ner in theev ent of a 0at tyre (e.g. until the
nearest workshop).
R The tyre side walls are folded when in trans-
port mode. Before using the collapsible spare
wheel, in0ate it using the accompanying com-
pressor.
R Check the tyre pressure of the collapsible
spare wheel once /t tedand, if necessar y,
adjust.
R The maximum permissible speed with a col-
lapsible spare wheel /tted is 80 km/h.
R Do not /t the collapsible spare wheel with
snow chains.
R Replace the collapsible spare wheel aTer six
ye ars at the latest, rega rdless of wear.
% V
Vehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e loss w
e loss w ar
arning
ning
syst
syst em:
em: if a collapsible spare wheel is /tted,
th e tyre pressure loss warning system cannot
function reliabl y.Only restart the system
again when the collapsible spare wheel has
been replaced with a new wheel. 386
386
Wheels and tyres

V
V
ehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring sy
ing sy s-
s-
t
t em:
em: if a collapsible spare wheel is /t tedthe
tyre pressure monitoring system cannot func-
tion reliabl y.Fo r a few minutes aTer an emer-
ge ncy spa rewheel is /tted, the system may
still display the tyre pressure of there mo ved
wheel. Only restart the system again when the
collapsible spare wheel has been replaced
with a new wheel.
Be sure toalso obser vethefo llowing fur ther rela-
te d subjects:
R Notes on tyre pressure (/ page 369)
R Tyre pressure table (/ page 370) In0ating
In0ating
t
the collapsible spar
he collapsible spar e wheel
e wheel R
R
eq
eq uir
uir ements:
ements:
R Mount the collapsible spare wheel as descri-
bed (/ page 382).
R Remo vethe tyre in0ation compressor from the
st ow age space under the load compartment
0oor (/ page 350, 349). *
N
NOOTE
TE Damage tothe emer gency spa re
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously in0at-
ing the emer gency collapsible spa rewheel can
damage its rim. #
In0a tethe emer gency collapsible spa re
wheel using the tyre in0ation compressor
before lo wering theve hicle. *
N
NOOTE
TE Overheating due tothe tyre in0ation
compressor running too long #
Do not runth e tyre in0ation compressor
fo r longer than ten minutes without inter-
ru ption. #
Pull connector 4and the hose out of the
housing. #
Unscr ewthe cap from theva lve on the col-
lapsible spare wheel. #
Screw union nut 1ofthe hose onto the
va lve.
% Make sure on and o. switch 3ofthe tyre
in0ation compressor is set to 00. #
Insert plug 4into the cigar ette lighter soc ket
or into a 12 V soc ket (/ page 128) in your
ve hicle. #
Switch on the po wer supply (/ page 165). Wheels and tyres
387
387