Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 339

Flat tyre
336
Be sure to use the original-length wheel bolts
when refitting the original wheel after it has
been repaired.
Clean the wheel and wheel hub contact
X
surfaces.
Place the emergency spare wheel on the
X
wheel hub and push it on.
Tighten the wheel bolts until they are fin-
X
ger-tight.
Inflate the collapsible emergency spare
X
wheel ( page 336).
Y
Inflating the collapsible emergency
spare wheel
! Inflate the collapsible emergency spare
wheel using the tyre inflation compressor
before lowering the vehicle. The wheel rim
could otherwise be damaged.
Pull connector ? and the air hose out of
X
the housing.
Remove the cap from the valve on the col-
X
lapsible emergency spare wheel.
Screw union nut : on the air hose onto the
X
valve.
Make sure on/off switch A of the tyre
X
inflation compressor is set to 0.
Insert connector ? into the cigarette
X
lighter socket ( page 307) or into a 12 V
Y
socket ( page 307) in your vehicle.
Y
Make sure that the key is in position
X
1( page 147)in the ignition lock.
Y
Press on/off switch A on the tyre inflation
X
compressor to I.
The tyre inflation compressor is switched
on. The tyre is inflated. The tyre pressure is
shown on pressure gauge =.
! Do not operate the tyre inflation com-
pressor for longer than eight minutes at a
time without a break. It may otherwise
overheat.
The tyre inflation compressor can be oper-
ated again once it has cooled down.
Pump the tyre to the specified tyre pres-
X
sure.
The specified tyre pressure is printed on
the yellow label of the emergency spare
wheel.
When the specified tyre pressure has been
X
reached, press on/off switch A on the
electric air pump to 0.
The tyre inflation compressor is switched
off.
Turn the key to position 0 in the ignition
X
lock.
If the tyre pressure is higher than the speci-
X
fied pressure, press pressure release but-
ton ; until the correct tyre pressure has
been reached.
Unscrew union nut : on the air hose from
X
the valve.
Screw the valve cap onto the collapsible
X
emergency spare wheel valve again.