clock MERCEDES-BENZ A-CLASS SALOON 2021 User Guide

#
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 376). R
R
emo
emo ving a wheel
ving a wheel R
R
eq
eq uir
uir ements:
ements:
R The vehicle is raised (/ page 374).
* 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 boot. 376 376
Wheels and tyres

#
Notes on removing an emer gency spa rewheel
(/ page 378). 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 376).
* NO
NOTE
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. &
W
W ARNING
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 368).
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 378). &
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 368). #
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 377). 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 377). #
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. Wheels and tyres
377
377