Mercedes-Benz GLK-Class 2012 Owners Manual - Manual (Page 259)

This could cause an accident. Make sure to
use the correct wheel bolts.
G
WARNING
Only use genuine Mercedes-Benz wheel bolts.
Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise, the vehicle could
fall off the jack.
: Wheel bolts for all wheels supplied by the
factory
;
Wheel bolts for the collapsible spare
wheel
! Always use wheel bolts ; to mount the
collapsible spare wheel. Using other wheel
bolts to mount the collapsible spare wheel
could damage the brake system.
G WARNING
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired.
X Clean the wheel and wheel hub contact
surfaces.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
X Place the emergency spare wheel on the
wheel hub and push it on.
X Tighten the wheel bolts until they are
finger-tight.
X Inflate the collapsible spare wheel
(
Y page 257).
Inflating the collapsible spare wheel
G
WARNING
Inflate the collapsible spare wheel only after
the wheel is properly attached.
Inflate the collapsible spare wheel using the
tire inflation compressor
before lowering the
vehicle.
X Pull connector ? and the air hose out of
the housing.
X Remove the cap from the valve on the
collapsible spare wheel.
X Screw union nut : on the air hose onto the
valve.
Flat tire
257
Breakdown assistance
Z