be required earlier. Do not change the direction
of wheel rotation.
Clean the contact surfaces of the wheel and the
brake disc thoroughly every time a wheel is rota- ted. Check the tire pressure and, if necessary,
restart the tire pressure loss warning system or
the tire pressure monitor (Y page 358).Direction of rotation
Tires with a specified direction of rotation have
additional benefits, e.g. if there is a risk of hydro-
planing. These advantages can only be gained if the tires are installed corresponding to the
direction of rotation.
An arrow on the sidewall of the tire indicates itscorrect direction of rotation. Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the tires
from oil, grease, gasoline and diesel. Mounting a wheel
Preparing the vehicle X
Vehicle with emergency spare wheel:
when mounting the emergency spare wheel in
the event of a flat tire, follow the additional
notes on vehicle preparation under "Flat tire"
(Y page 335).
X Stop the vehicle on solid, non-slippery and
level ground.
X Apply the electric parking brake manually.
X Bring the front wheels into the straight-ahead
position.
X Vehicles with automatic transmission:
shift the transmission to position
005D.
X Vehicles with the AIRMATIC package:
make sure that the normal vehicle level is
selected (Y page 185).
X Vehicles with the Off-Road Engineering
package:
make sure that the normal vehicle
level is selected (Y page 179).
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove the
SmartKey from the ignition lock. X
Vehicles with KEYLESS-GO: open the driv-
er's door.
The vehicle electronics are now in position
0092. This means no SmartKey is in the ignition
lock.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 135).
X Make sure that the engine cannot be started
via your smartphone (Y page 137).
X If included in the vehicle equipment, remove
the tire-change tool kit from the vehicle.
X Safeguard the vehicle against rolling away.
i Apart from certain country-specific varia-
tions, vehicles are not equipped with a tire-
change tool kit. For more information on
which tools are required to perform a wheel
change on your vehicle, consult a qualified
specialist workshop.
Necessary tire-changing tools can include, for
example:
R Jack
R Wheel chock
R Lug wrench
Securing the vehicle to prevent it from
rolling away If your vehicle is equipped with a wheel chock, it
can be found in the tire-change tool kit
(Y page 335).
The folding wheel chock is an additional safety
measure to prevent the vehicle from rolling
away, for example when changing a wheel.
X Fold both plates upwards 0043.
X Fold out lower plate 0044.
X Guide the lugs on the lower plate fully into the
openings in base plate 0087.372
Changing a wheelWheels and tires
X
Pull connector 0085and hose 0084out of the
housing.
X Remove the cap from the valve on the col-
lapsible spare wheel.
X Screw union nut 0044of hose 0084onto the valve.
X Make sure on/off switch 0083of the tire infla-
tion compressor is set to 0.
X Insert connector 0085into a socket in your vehi-
cle.
Cigarette lighter socket: (Y page 307)
12 V sockets: (Y page 308)
Observe the notes on the cigarette lighter
(Y page 307). Observe the notes on sockets
(Y page 308).
X Turn the SmartKey to position 0047in the igni-
tion lock (Y page 135).
X Press on and off switch 0083on the tire inflation
compressor to I.
The tire inflation compressor is switched on.
The tire is inflated. The tire pressure is shown on pressure gauge 0087.
X Inflate the tire to the specified tire pressure.
The specified tire pressure is printed on the
yellow label of the emergency spare wheel.
X When the specified tire pressure has been
reached, press on and off switch 0083on the
tire inflation compressor to 0.
The tire inflation compressor is switched off.
X Turn the SmartKey to position 0092in the igni-
tion lock.
X If the tire pressure is higher than the specified
pressure, press pressure release valve but-
ton 0043until the correct tire pressure has been
reached.
X Unscrew union nut 0044on hose 0084from the
valve.
X Screw the cap onto the valve of the collapsi-
ble spare wheel again. X
Stow connector 0085and hose 0084in the lower
section of the tire inflation compressor.
X Stow the tire inflation compressor in the vehi-
cle. 380
Emergency spare wheelWheels and tires
