Mounting a wheel
Preparing the vehicle
XStop the vehicle on solid, non-slippery and
level ground.
XApply the electric parking brake manually.
XBring the front wheels into the straight-
ahead position.
XShift the transmission to position P.
XSwitch off the engine.
XVehicles without KEYLESS-GO:remove
the SmartKey from the ignition lock.
XVehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics now have status
0. This is the same as the SmartKey having been removed.
XVehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(
Ypage 140).
XIf included in the vehicle equipment,
remove the tire-change tool kit from the
vehicle.
XSafeguard the vehicle against rolling away.
iDue to differences in vehicle equipment,
not all vehicles are equipped with a tire-
change tool kit. For information on which
tools are required to perform a wheel
change on your vehicle, consult an author- ized Mercedes-Benz Center.
Necessary tire-changing tools can include,
for example:
RJack
RWheel chock
RLug 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
(
Ypage 290).
The folding wheel chock is an additional
securing measure to prevent the vehicle from rolling away, for example when changing a
wheel.
XFold both plates upwards :.
XFold out lower plate;.
XGuide the lugs on the lower plate fully into
the openings in base plate =.
Securing the vehicle on level ground
XOn level ground:place chocks or other
suitable items under the front and rear of
the wheel that is diagonally opposite the
wheel you wish to change.
Changing a wheel331
Wheels and tires
Z
!Do not operate the tire inflation compres-
sor for longer than ten minutes at a time
without a break. It may otherwise overheat.
The tire inflation compressor can be oper-
ated again once it has cooled down.
XMount the collapsible spare wheel as
described (
Ypage 331).
The collapsible spare wheel must be moun-
ted before it is inflated.
XPull plug ?out of the housing.
XTake the filler hose out of the housing.
XInsert the yellow hose connector of the
filler hose into the guide in the housing and
push it into the fixture until the hose con-
nector engages.
XRemove the cap from the valve on the col-
lapsible spare wheel.
XScrew union nut :on the filler hose onto
the valve.
XMake sure the tire inflation compressor's
on/off switch Ais set to OFF.
XInsert plug ?into the socket of the ciga-
rette lighter or into a 12 V power socket in
your vehicle.
Observe the notes on the cigarette lighter
(
Ypage 258). Observe the notes on sock-
ets (
Ypage 259).
XTurn the SmartKey to position 1in the igni-
tion lock (
Ypage 139).
XPress on/off switch Aon the tire inflation
compressor to ON.
The tire inflation compressor is switched
on. The tire is inflated. The tire pressure is
shown on pressure gauge =.
XInflate the tire to the specified tire pres-
sure.
The specified tire pressure is printed on the
yellow label of the emergency spare wheel.
XWhen the specified tire pressure has been
reached, press on/off switch AtoOFF , on
the tire inflation compressor.
The tire inflation compressor is switched
off.
XTurn the key to position 0in the ignition
lock.
XIf the tire pressure is higher than the speci- fied pressure, press pressure release but-
ton ;until the correct tire pressure has
been reached.
XUnscrew union nut :on the filler hose
from the valve.
XScrew the cap onto the valve of the col-
lapsible spare wheel again.
Removing the filler hose
XTo remove the filler hose from the tire infla-
tion compressor, push down the rocker
switch on the hose connector and pull out
the filler hose.
XStow plug ?and the filler hose in the lower
section of the compressor housing.
XStow the tire inflation compressor in the
vehicle.
Emergency spare wheel341
Wheels and tires
Z