2012 MERCEDES-BENZ GL SUV light

malfunction, which can caus
etyre press ure
loss. Due to their design, retrofitted tyre pres-
sure monitor skeep the tyr evalve open. This
can als oresul tint yre pressur eloss .There is
ar isk of accident.
Only screw standard valv ecaps or valve caps
specifically provided by Mercedes-Benz for
your vehicle onto the tyre valve. G
WARNING
If the tyre pressure drops repeatedly, the
wheel, valve or tyre may be damaged. Tyre
pressure that is too low may result in atyre
blow-out. There is arisk of accident.
R Check the tyre for foreign objects.
R Check whether the wheel is losing air or the
valv eisl eaking.
If you are unabl etorectify the damage, con-
tac ta qualified specialist workshop. H
Environmental note
Check the tyr epressure regularly, at least
every 14 days.
Yo uw ill find atable of tyre pressures for var-
ious operating conditions on the inside of
your vehicle's fuel filler flap.
Operation with the emergency spare
wheel(Y page 414).
Operation with atrai ler: the applicable
value for the rear tyres is the maximum tyre
pressure value stated in the table inside the
fuel filler flap.
The table inside the fuel filler flap may state
tyr ep ressures for different load conditions.
Thes eare define dinthe tabl easdifferent
number sofpassengers and amounts of lug-
gage. The actual number of seats may vary –
for more information, please refer to the vehi-
cle's registration documents.
If tyre sizes are not specified, the tyre pres-
sures stated on the tyre pressure information
label apply for all tyres approved for this vehi-
cle. If
at yre size precede satyre pressure, the
following tyre pressure information is only
valid for that tyre size.
Use asuitable pressure gauge to check the
tyre pressure. The outer appearance of atyre
doe snot permit any reliable con clusion about
the tyre pressure. On vehicles fitted with the
electronic tyre pressure monitor, the tyre
pressure can be checked using the on-board
computer.
If possible, only correc ttyre pressures when
the tyres are cold.
The tyres are cold:
R if the vehicl ehas been parked wit hthe tyres
out of direc tsunlight for at least three
hours and
R if the vehicle has not been driven further
than 1. 6km
Depe nding on the ambient temperature, the
speed at which you are drivin gand the load
on the tyres, the tyre temperature and thus
the tyre pressure chang ebyapproximately
10 kPa per 10 †(0.1 ba r/1.5 ps i).T ake this
into account whe nchecking the pressur eof
warm tyres. Only correc tthe tyr epressure if
it is to olow for the curren toperating condi-
tions.
Drivin gwith tyre pressure that is too high or
too low can:
R shorten the servic elife of the tyres
R cause increased tyre damage
R have anegativ eeffect on handling charac-
teristics and thus th edriving safet y(e.g.
aquaplaning) 400
Ty
re pressureWheel sand ty res

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

Securing the vehicle on level ground
X
On level ground: place chocks or oth er
su itabl eitem sunder the front and rea rof
the whee lthat is diagonally opposite the
whee lyou wish to change. Securing the vehicle on slight downhill gradients
X On ligh tdownhill gradients: place
chocks or other suitabl eitems in front of
the wheels of the front and rear axle.
Raisin gthe vehicle G
WARNING
If you do not positio nthe jac kcorrectly at the
appropriate jackin gpoint of the vehicle, the
jac kc ould tip over with the vehicle raised.
There is arisk of injury.
Only position the jack at the appropriate jack-
ing point of the vehicle. The base of the jack
must be positioned vertically, directly under
the jackin gpoint of the vehicle.
! AMG vehicles equipped with the
"Minispare" emergency spare wheel:
Use the "Minispare" emergency spare wheel
only on th erear axle.Ift he
"Minispare" emergenc yspare wheel is
mounted on the front axle, it could damage
the brak esystem.
If at yre on the front axle is faulty, an intact
whee lfrom th erear axle must first be
replaced by the "Minispare" emergency
spare wheel. The faulty tyr eonthe front
axl es hould then be replaced by the intact
tyr efrom th erear axle.
Be sure to observ ethe instruction label on
the "Minispare" emergenc yspare wheel.
The following must be observed when raising
the vehicle:
R to raise the vehicle, only use the vehicle-
specifi cjack that has been tested and
approved by Mercedes-Benz .Ifthe jac kis
used incorrectly, it could tip over while the
vehicle is raised.
R the jack is designed only to raise and hold
the vehicle for ashort tim ewhile awheel
is being changed. It is not suited for per-
forming maintenance wor kunder the vehi-
cle.
R avoid changing the wheel on uphil land
downhil lslopes.
R before raising the vehicle, secure it from
rolling away by applying the parkin gbrake
and inserting whee lchocks. Never disen-
gage the parkin gbrake whil ethe vehicle is
raised.
R the jac kmust be placed on afirm ,flat and
non-slip surface. On aloose surface, a
large, load-bearing underlay must be used.
On aslippery surface, anon-slip underlay
must be used, e.g. rubber mats.
R do not use wooden block sorsimilar
objects as ajack underlay .Otherwi se,the
jack wil lnot be able to achiev eits load-
bearing capacity due to the restricted
height.
R mak esure that the distanc ebetween the
underside of the tyr es andthe grou nddoes
not exceed 3cm. 406
Changing
awheelWheels and tyres

Tyres
GL 35 0BlueTEC 4MATIC Summ
ertyres
R19 Tyres Light-alloy whe
els BA: 275/55
R19111 V 1 BA
:8.5 Jx19H2ET62 R20
Tyres Light-allo
ywheels BA: 275/50
R20109 W1 BA: 8.5
Jx20H2ET62 R21
Tyres Light-alloy wheels
BA: 295/40 ZR 21 111
YXL1 BA: 10.0
Jx21H2ET46 All-weather tyres
R18
Tyres Light-alloy wheels
BA: 265/60
R18110HM +S BA: 8.0
Jx18H2ET56.5 All-terrain tyres
R18
Tyres Light-alloy wheels
BA: 265/60
R18110HM +S BA: 8.0
Jx18H2ET56.5 R19
Tyres Light-alloy wheels
BA: 275/55
R19111HM +S1 BA: 8.5
Jx19H2ET62 Winter tyres
R18
Tyres Light-alloy wheels
BA: 265/60
R18110HM +Si BA: 8.0
Jx18H2ET56.5 1
Use of sno wchains is not permitted. Observe the notes under "Snow chain s". Whee
land tyre combinations
411Wheels and tyres Z

R19
Tyres Light-allo
ywheels BA: 265/55
R19109HM +Si BA: 8.5
Jx19H2ET62 GL 35
0CDI 4M ATIC Summer tyres
R19
Tyres Light-alloy wheels
BA: 275/55
R19111 V1 BA: 8.5
Jx19H2ET62 R20
Tyres Light-alloy wheels
BA: 275/50
R20109 W1 BA: 8.5
Jx20H2ET62 R21
Tyres Light-alloy wheels
BA: 295/40 ZR 21 111
YXL1 BA: 10.0
Jx21H2ET46 All-weather tyres
R18
Tyres Light-alloy wheels
BA: 265/60
R18110HM +S BA: 8.0
Jx18H2ET56.5 All-terrain tyres
R18
Tyres Light-alloy wheels
BA: 265/60
R18110HM +S BA: 8.0
Jx18H2ET56.5 R19
Tyres Light-alloy wheels
BA: 275/55
R19111HM +S1 BA: 8.5
Jx19H2ET62 1
Use of snow chains is no tpermitted. Observe the notes under "Snow chains". 412
Wheel and tyre combinationsWheels and tyres

Winter tyres
R18
Tyres Light-alloy wheels
BA: 265/60
R18110HM +Si BA: 8.0
Jx18H2ET56.5 R19
Tyres Light-alloy wheels
BA: 265/55
R19109HM +Si BA: 8.5
Jx19H2ET62 GL 50
04MATI CBlueEFFICIENCY Summer tyres
R19
Tyres Light-alloy wheels
BA: 275/55
R19111 V1 BA: 8.5
Jx19H2ET62 R20
Tyres Light-alloy wheels
BA: 275/50
R20109 W1 BA: 8.5
Jx20H2ET62 R21
Tyres Light-alloy wheels
BA: 295/40 ZR 21 111
YXL1 BA: 10.0
Jx21H2ET46 All-terrain tyres
R19
Tyres Light-alloy wheels
BA: 275/55
R19111HM +S1 BA: 8.5
Jx19H2ET62 Winter tyres
R19
Tyres Light-alloy wheels
BA: 265/55
R19109HM +Si BA: 8.5
Jx19H2ET62 1
Use of snow chains is no tpermitted. Observe the notes under "Snow chains". Wheel and tyre combinations
413Wheels and tyres Z

GL 63 AMG
Summer tyres
R21
Tyres Light-alloy wheels
BA: 295/40 ZR 21 111
YXL1 BA: 10.0
Jx21H2ET46 Winter tyres
R20
Tyres Light-alloy wheels
BA: 275/45
R20110VXLM +Si BA: 9.0
Jx20H2ET41 Emergency spare wheel
Important safety notes
G
WARNING
The wheel/tyr edimensions and the tyre type
of the spare wheel/emergency spare wheel
and the whee ltobereplaced may differ. Fit-
ting aspare wheel/emergency spare wheel
may severely impair the driving characteris-
tics. There is arisk of accident.
To prevent hazardous situations:
R Adapt you rdriving style accordingl yand
drive carefully.
R Never fit more than one spare whe el/emer-
gency spare whe elif the dimesions are dif-
ferent to those of the whee lbeing replaced.
R Only use aspare wheel/emergency spare
whee lbriefl yift he dimesions ar ediffer ent
to thos eofthe wheel being repl aced.
R Do not switch off ESP ®
.
R Hav ethe spar ewheel/emergency spare
wheel in question repl aced at the nearest
qualified specialist workshop .Make sure
that the wheel/ty redimension sand tyre
type are correct.
! AMG vehicles equipped with the
"Minis pare"emergency spare wheel:
Use the "Minispare" emergency spare wheel
only on th ereara xle.Ift he
"Mini spare" eme rgency spar ewheel is
mou nted on th efront axle, it could damage
the brake system.
If at yre on the front axl eisfaulty ,anintact
whee lfrom th ereara xlem ustfirst be
replaced by th e"Minispare" emergency
spare wheel. The faulty tyre on the front
axl es hould then be replaced by the int act
tyre from the rea raxle.
Be sure to observe the instructio nlabel on
the "Minispare" emergenc yspar ew heel.
When usin ganemergenc yspar ew heel or
spar ewheel of adifferent size, you must not
excee dthe maximu mspee dof80k m/h.
Snow chain smust not be fitted to emergency
spare wheels. General notes
Fittin gthe emergency spar ewheel is descri-
bed in "Fi ttin gaW heel" (Y page 405).
You should regularly chec kthe pressur eof
the emergency spare wheel, particularly prior
to long trips, and correct the pressure as nec-
essary (Y page 399). The applicable value is
found on the whee loru nder "Technical data"
(Y pag e417).
1 Use of sno wchains is not permitted. Observ ethe notes under "Snow chains". 414
Emergency spar
ewheelWheels and tyres

Technical data
"Minispare "emergency spare whe elTyres Light-allo
ywheels T1
65/90 R19 119 M
Tyre pressure: 420 kPa (4.2 bar/61 psi) 4.5
Bx19H2ET40 Emergenc
yspare wheel
417Wheelsand tyres Z