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Wheels and Tires
Changing a wheel
A
B
Preparing the vehicle
C
1. Activate the transmission parking lock using the
P button on the selector lever.
D
2. Activate the electric parking brake.
E
3. Switch ignition off.
4. Secure the vehicle to prevent it from rolling
F
away, e.g. by placing wheel blocks at the wheels
G
on the opposite side.
5. Slightly loosen the wheel bolts or wheel nuts on
H
the wheel to be changed.
I
WARNING
J
K
A vehicle on which the leveling system is activated
L
can move unexpectedly or tip or fall off lifting
equipment, e.g. a jack or lifting platform. This can
M
cause serious injuries and damage.
e Manually set normal level and switch off the lev-
N
eling system before raising the vehicle.
O
> Please see chapter "Vehicle Settings" on
P
page 285.
Q
6. Raise the vehicle only at the specified jacking
points.
R
> Please see chapter "Jack and Lifting Plat-
S
form" on page 149.
T
7. Raise the vehicle until the wheel lifts off the
ground.
U
V
W
X
Y
Z
326
Changing
Fig. 244: Screw in one assembly aid on vehicles without
Control operation of the
PCCB
leveling system
Fig. 245: Screw in two assembly aids on vehicles with PCCB
1. For vehicles without PCCB: Remove one wheel
bolt and screw in an assembly aid.
– or –
2. For vehicles with PCCB: Remove two wheel bolts
and screw in two assembly aids.
The brake disks can become damaged if wheels are
not changed properly, especially on vehicles with
NOTICE
PCCB.
e When changing a wheel, screw in the assembly
aids.
2. Remove the remaining wheel bolts.
> Please see chapter "Care of wheel bolts" on
page 325.
3. Remove the wheel.
> Please see chapter "Caring for wheel attach-
ment faces" on page 325.
4. Fit a new wheel.
5. Insert wheel bolts and tighten in diagonally op-
posite sequence.
6. Remove assembly aids and screw in remaining
wheel bolts. Initially tighten bolts only slightly in
a diagonally opposite sequence so that the wheel
is centered.
7. Inflate the tires if necessary.
8. Lower the vehicle fully and remove the jack.
9. Tighten the wheel bolts in diagonally opposite
sequence. Do not use any force-actuated tools
such as impact screwdrivers.
10.Immediately after changing a wheel, use a tor-
que wrench to check the specified tightening
torque (118 lb-ft (160 Nm)) of the wheel bolts.
11.The current settings for the Tire Pressure Moni-
toring System (TPMS) are displayed.
> Please see chapter "Setting Tire Pressure
Monitoring (TPM)" on page 318.
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