ignition MERCEDES-BENZ GL SUV 2012 Owners Manual

pressure monitor active displa
ymes-
sage is shown instead of the tyr epressure
display. Th etyre pressures are already being
monitored.
Warning message softhe tyre pressure
monitor If th
etyre pressure monitor detects asignifi-
cant pressure loss on one or more tyres, a
warnin gmessage is shown in the multifunc-
tion display. Awarning ton ealso sounds and
th et yrep ressure warning lamp ligh tsup in
the instrumen tcluster.
Eac htyret hat is affec tedbyas ignificant loss
of pressure is highlighted in th epressure dis-
play.
X If the Please correc ttyrep ressure messag
eappear sint he multifunctio ndis-
play, check th etyrep ressure on all four
wheels and correct it if necessary.
i If the whee lpositions on th evehicle are
interchanged, th etyrep ressures may be
displayed for the wro ngpositions for a
shor ttime. This is rectified after afew
minute sofdriving, and the tyre pressures
are displayed for the correct positions.
Restartin gthe tyre press urem onitor When you restar
tthe tyr epressure monitor,
all existing warning message sare deleted and
th ew arning lamps go out. The monitor uses
the currently set tyre pressures as the refer-
ence values for monitoring. In most cases, the
tyre pressure monitor will automatically
detect the new referenc evalues after you
have changed the tyr epressure. However,
you can also define referenc evalues man-
uall yasd escribed here.
X Use the table on the inside of the fuel filler
flap to ensur ethat the tyr epressure is set
corre ctly in all four tyres for the current
operating conditions. Also observe the notes in the section on
tyre pressures (Y
page 399).
X Make sure that the key is in position 2in
the ignition lock.
X Press the =or; button on the steer-
ing wheel to select the Serv. menu.
X Press the 9or: button to select
Tyre pressure .
X Press the abutton.
The multifunction display shows the cur-
rent tyre pressure for the individual tyres or
the Tyre pressure swill be dis‐ played after a few minutes of driv‐
ing message.
X Press the :button.
The Use current pressures as new reference values message appears in
th em ultifunction display.
If you wish to confirm the restart:
X Press the abutton.
The Tyre press. monito rrestarted message appears in th
emultifunction dis-
play.
After you have driven for afew minutes, the
system check swhether the curren ttyre
pressures are within the specified range.
The new tyre pressures are then accepted
as reference values and monitored.
If you wish to cancel the restart:
X Press the %button.
The tyre pressure values stored at the last
restart will continue to be monitored.
Radio typ eapproval for the tyr epres-
sure monitor In certain countries
,aradio type approval for
the tyre pressure monitor may be required.
The radio type approval number for the tyre
pressure monitor can be found online at:
http:/ /www.mercedes-benz.de/
betriebsanleitung. Tyr
epressure
403Wheels and ty res Z

Storing wheels
Stor ewheels that ar enot being used in acool,
dry and preferably dar kplace. Protect the
tyres against oil, grease, petrol and diesel. Cleaning the wheels
G
WARNING
The water jet of circular-jet nozzles (dirt grind-
ers) can cause damage not visible from the
outside to tyres or chassis components. Com-
ponent sdamaged in this way can unexpect-
edly fail. There is arisk of an accident.
Do not use high-pressure cleaners with circu-
lar-jet nozzles to clean the vehicle. Have dam-
aged tyres or chassis components replaced
immediately. Fitting
awheel
Preparing the vehicle X
Vehi cles with an emergency spare
wheel: whenfitting the emergenc yspare
wheel in the even tofaflat tyre, observe the
addi tional note sonvehicl epreparation
under "Flat tyre" (Y page 378).
X Pa rk th evehicle on firm, non-slippery and
level ground.
X Unload heavy luggage.
X Engage the electric parking brak eman-
ually.
X Bring the front wheels into the straight-
ahead position.
X Shift the transmission to position P.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the key from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver' sdoor.
The on-boar delectronic shave status 0,
which is the same as the key having been
removed. X
Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 159).
X If included in the vehicle equipment, take
the tyre-change tool kit out of the vehicle.
X Secure the vehicle to prevent it from rolling
away.
i Apart from some country-specific var-
iants, vehicles are not equipped with tyre-
changing tools .For mor einformation on
which tool sare require dtop erform awheel
change on your vehicle, consult a
Mercedes-Ben zService Centre.
Required tyre-cha nging tools could be, for
example:
R jack
R wheel chock
R wheel wrench
Securing the vehicle against rolling
away If your vehicle is equipped with
awheel choc k,
it can be found in the tyre-change tool kit
(Y page 377).
The folding wheel chock is an additional
securing measure to prevent the vehicle from
rolling away, for example when changing a
wheel.
X Fold both plates upwards :.
X Fold out lower plate ;.
X Guide the lugs on the lower plate fully into
the openings in base plate =. Changing
awheel
405Wheels and tyres Z