2017 MERCEDES-BENZ G-Class tire pressure

Important safety notes
GWARNING
If wheels and tires of th ewrong siz eare used,
th ew hee lbrakes or suspension component s
may be damaged. Ther eisariskofana cci-
dent.
Always replace wheels and tires wit hthose
that fulfill th especification softheoriginal
part .
When replacing wheels, mak esuretou se the
correct:
Rdesignation
Rmodel
When replacing tires ,makes uretou se the
correct:
Rdesignation
Rmanufacturer
Rmodel
GWarning
Af lat tire severely impairs th edriving ,steer -
ing and braking characteristics of th evehicle.
Ther eisar iskofana ccident.
do no tdrivew ithaf lat tire. Immediately
replace th eflat tire wit hyour spar ewheel, or
consult aqualified specialist workshop.
Accessories that are no tapprove dfor your vehi-
cle by Mercedes-Ben zorare notbein gused cor-
rectl ycan impair th eoperating safety.
Before purchasing and usin gnon-ap proved
accessories, visit aqualified specialist work-
sho pand ask about :
Rsuitability
Rlegal stipulation s
Rfactory recommendation s
Further information regarding wheels and tires
can be foun dunder "Wheel/tire combinations"
(
Ypage 273).
You can ask for information regarding permitte d
wheel/tire combination satanauthorized
Mercedes-Ben zCenter. Information on tire pressur
ecan be found:
Ron th eTirea nd Loading Information placard
on th eB-pillar on th edriver' sside
(
Ypage 260)
Rin th etirep ressur etable in th efuel filler flap
(Ypage 119)
Runder "Tir epressure" (Ypage 254)
Operation
Information on driving
Checkthe tire pressur ewhen th evehicl eis
heavily laden and adjust prio rtoatrip.
While driving ,pay attention to vibrations, noises
and unusual handlin gcharacteristics ,e.g.p ull-
ing to on eside .This may indicat ethatthe
wheels or tires are damaged. If you suspec ttha t
at ireisd efective, reduce your spee dimmedi-
ately. Stop th evehicl eass oonasp ossible to
chec kthe wheels and tires for damage. Hidden
tire damag ecould also be causing th eunusual
handlin gcharacteristics .Ifyou fin dnos ignsof
damage, hav ethe tires and wheels checke data
qualified specialist workshop.
When parking your vehicle, mak esuret hatthe
tires do no tget deformed by th ecurboro ther
obstacles. If they canno tbeavoided, driv eover
obstacles suc hascurbs slowly and at an obtuse
angle. You could otherwise damag ethe whee l
rim sand tires .
Regularchecking of wheels and tires
GWARNIN G
Damaged tires can caus etirei nflation pres-
sur eloss .Asar esult,you could lose control of
your vehicle. Ther eisariskofa ccident.
Chec kthe tires regularly for sign sofdamage
and replace any damaged tires immediately.
Chec kwheels and tires for damag eatleast once
am onth .Chec kwheels and tires after driving
off-road or on roug hroads. Damaged wheels
can caus ealoss of tire pressure.
Pay particular attention to damag esucha s:
Rcut sint hetires
Rpunctures in th etires
Rtears in th etires
Operation251
Wheels and tires
Z

Rbulges on tires
Rdeformation or severe corrosion on wheels
Regularly checkt he tire tread depth and the
condition of the tread across the whole width of
the tire (
Ypage 252). In order to inspec tthe
inne rside of the tire surface, turn the steering
wheel to full lock.
All wheels must have avalve cap to protect the
valve against dirt and moisture. Do not install
anythin gontot he valve other than the standard
valve cap or avalve cap approved by Mercedes-
Benzf or your vehicle. Do not use any other valve
caps or systems ,e.g. tire pressure monitoring
systems.
You should regularly checkt he pressure of all
your tires includin gthe spare wheel, particularly
prior to long trips. Adjust the tire pressure as
necessary (
Ypage 254).
The servicel ife of tires depends, among other
things, on the following factors:
RDriving style
RTire pressure
RDistance covered
Notes on tir etread
GWARNING
Insufficientt ire tread will reduce tire traction.
The tire is no longer able to dissipate water.
This means that on wet road surfaces,t he risk
of hydroplaning increases, in particular where speed is not adapted to suit the driving con-
ditions. There is arisk of accident.
If the tire pressure is too high or too low, tires
may exhibit differentl evels of wear at differ-
ent location sonthe tire tread. Thus, you
should regularly checkt he tread depth and
the condition of the tread across the entire
width of all tires.
Minimum tire tread depth for:
RSummer tires: âin (3 mm)
RM+S tires: ãin (4 mm)
For safety reasons ,replace the tires before
the legally prescribed limit for the minimum
tire tread depth is reached.
Marking :shows where the bar indicator
(arrow) for tread wear is integrated int othe tire
tread.
Treadwear indicators (TWI) are required by law. Six indicators are positioned on the tire tread.
They are visible onc eatread depth of approx-
imately áin (1.6 mm) has been reached. If this
is the case, the tire is so worn that it must be
replaced.
Selecting, mounting and replacing
tires
ROnly mount tires and wheels of the same type
and make.
ROnly mount tires of the correct size ont othe
wheels.
RBreak in new tires at moderates peeds for the
first 60 miles (100 km). The new tires only
reach their full performanc eafter this dis-
tance.
RDo not drive with tires which have too little
tread depth, as this significantly reduces the
traction on wet roads (hydroplaning).
RReplace the tires after six years at the latest,
regardless of wear. This also applies to the
spare wheel.
Winter operation
General notes
Have your vehicle winter-proofed at aqualified
specialist workshop at the onset of winter.
Observe the notes in the "Changing awheel"
section (
Ypage 269).
252Winter operation
Wheels and tires

Drivingwiths ummer tires
At temperature sbelo w45‡( +7 †), elasticity in
summe rtires is significantly lower and thus also
traction and braking power. Change the tires on
you rvehicle to M+S tires .Using summe rtires at
very cold temperatures coul dcause cracks to
form, therebyd amaging the tires permanently.
Mercedes-Benz cannot accep tresponsibility for
this type of damage.
GWARNING
Damaged tires can cause tire inflation pres-
sure loss.Asar esult, you couldlose control of
you rvehicle. There is arisk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
M+S tires
GWARNING
M+S tires with atire tread depth of less than
ã in (4 mm )are not suitabl efor use in winter
and do not provide sufficient traction. There is
ar isk of an accident.
M+S tires with atread depth of less than ãin
(4 mm) must be replaced immediately.
GWARNING
Wheela nd tire dimensions as wel lasthe type
of tire can vary between the spare wheel and
the wheel to be replaced .When the spare
wheel is mounted ,driving characteristics may
be severely affected .There is arisk of an acci-
dent.
In order to reduce risks:
Ryou should thereforea dapt yourdriving
styl eand drive carefully.
Rnever mount more than one spare wheel
that differs from the wheel to be replaced.
Ronly use aspare wheel that differs from the
wheel to be replaced for ashort time.
Rdo not deactivate ESP®.
Rhave aspare wheel that differs from the
wheel that has beenc hangedreplaced at
the nearest qualified specialist workshop.
You must observe the correct wheel and
tire dimensions as wel lasthe wheel type.
Do not exceed amaximu mspeedof50m ph
(80 km/h) if aspare wheel of adifferent size is
installed.
At temperatures below 45 ‡(+7 †), use winter
tires or all-season tires. Both type softire are
identified by the M+S marking.
Only winter tires bearing the isnowflake
symbol in addition to the M+S marking provide
the best possibleg rip in wintry road conditions.
Only these tires wil lallow driving safety systems
such as ABS and ESP
®to function optimally in
winter. Theset ires have beend eveloped specif-
ically for driving in snow.
Use M+S tires of the same make and tread on all
wheels to maintain safe handling characteris-
tics.
Always observe the maximu mpermissible
speeds pecified for the M+S tires you have
mounted.
When you have mounted the M+S tires:
XCheck the tire pressures (Ypag e257).
XRestart the tire pressure monitor
(Ypag e259).
Snowc hains
GWARNING
If you drive too fast with snow chains moun-
ted, they may snap. As aresult, you could
injure others and damage the vehicle. There is
ar isk of an accident.
Observe the maximu mpermissible speedf or
operation with snow chains.
!Information about the use of snow chain
compatibleA MG winter tires is applicable for
AMG tires. Use of snow chains is only per-
missible with these tires.
!On some tire sizes there is not enoug hspace
for snow chains. To avoi ddamage to the vehi-
cle or tires, observe the "Wheel and tire com-
binations" section unde r"Tires and wheels".
Wintero peration253
Wheels and tires
Z

!Check the snow chains for damage before
mounting them. Damaged or worn snow
chains may snap and damage the following
components:
Rwheel
Rwheel housing
Rwheel suspension
For this reason, you must use only snow
chains that are free of defects. Observe the
manufacturer's mounting instructions.
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that have
been speciallya pproved for your vehicle by
Mercedes-Benz,ora re ofacorresponding
standard of quality. For more information,
please contact aqualified specialist workshop.
If you intend to mount snow chains, please bear
the following points in mind:
RSnow chains may not be mounted on all
wheel/tire combinations. Observe the infor-
mation regarding permitted wheel/tire com-
binations (
Ypage 273).
RInstall the snow chains on all four wheels for
maximum tractive power and driving stability.
If you only have two snow chains, install these
as ap air on the rear wheels. The vehicle then
remains more stable under braking.
ROnly use snow chains when driving on roads
completely covered by snow. Remove the
snow chains as soon as possible when you
come to aroad that is not snow-covered.
RLocal regulations may restrict the use of snow
chains. Observe the appropriate regulations if
you wish to mount snow chains.
RDo not exceed the maximum permissible
speed of 30 mph (50 km/h).
You may wish to deactivate ESP
®when pulling
awayw ith snow chains installed (Ypage 59).
You can thereby allow the wheels to spin in a
controlled manner, achieving an increased driv- ing force (cutting action).
Tire pressure
Tire pressure specifications
Important safety notes
GWARNING
Underinflated or overinflated tires pose the
following risks:
Rthe tires may burst, especially as the load
and vehicle speed increase.
Rthe tires may wear excessively and/or
unevenly, which may greatly impair tire
traction.
Rthe driving characteristics, as well as steer-
ing and braking, may be greatly impaired.
There is arisk of an accident.
Follow recommended tire inflation pressures
and check the pressure of all the tires includ-
ing the spare wheel:
Rmonthly, at least
Rif the load changes
Rbefore beginning along journey
Runder different operating conditions, e.g.
off-road driving
If necessary, correct the tire pressure.
The data on the Tire and Loading Information
placard and tire pressure table shown here are
examples. Tire pressure specifications are vehi-
cle-specific and may deviate from the data
shown here. The tire pressure specifications
that are valid for your vehicle can be found on
the Tire and Loading Information placard and
tire pressure table on the vehicle.
General notes
The recommended tire pressures for the tires
mounted at the factory can be found on the
labelsd escribed here.
Operation with atrailer: the applicable value
for the rear axle is the maximum tire pressure
value stated in the table inside the fuel filler flap.
Further information on tire pressures can be
obtained at aqualified specialist workshop.
254Tire pressure
Wheels and tires

Tire and LoadingInfor matio nplacard
:Recommended tire pressures
The Tire and Loading Informatio nplacard is on
the B-pillar on the driver's side (
Ypage 260).
The Tire and Loading Informatio nplacard con-
tains the recommende dtire pressures for cold
tires. The recommende dtire pressures ar evalid
for the maximum permissibl eloa da nd up to the
maximum permissibl evehicl espeed.
Tire pressure table
The tire pressure table is on the insid eofthe fuel
fille rflap. It shows the tire pressure for al ltires
permitted at the factory for thisv ehicle; see
illustratio n(example).
The tire pressure table contains the recommen-
de dt ire pressure for col dtiresu nder various
operating conditions, i.e .differin gloa da nd
spee dconditions of the vehicle.
If at ire size precedes atire pressure, the tire
pressure informatio nfollowing is onl yvalid for
thatt ire size. The load conditions "partially
laden" and "fully laden" ar edefine dint he table
for different numbers of occupants and amounts of luggage.T he actual numbe rofseats mayd if-
fer. Some tire pressure table
sshowo nlyt he rim
diameters instea dofthe full tire size, e.g. R18.
The rim diamete rispartoft he tire size and can
be found on the tire sidewall (
Ypage 264).
If the tire pressures have been set to the lower
values for lighte rloads and/or lowe rroad
speeds ,the pressures shoul dbereset to the
highe rvalues :
Rif youwanttod rive with an increased load
and/or
Rif yo uwanttod rive at highe rroa ds peeds
The tire pressures for increased load sand/or
highe rroa ds peeds, shown in the tire pressure
table ,mayhave anegative effect on driving
comfort.
If the tire pressure is not set correctly, thisc an
lead to an excessive buil dupofheata nd asud-
de nlossofp ressure.
For mor
einformati
on, contactaquali fied spe-
cialist workshop.
Important notes on tire pressure
GWARNING
If the tire pressure drops repeatedly ,the
wheel, valve or tire maybed amaged.Tire
pressure thati stoo lo wmayresul tina tire
blow-out. There is ariskofana ccident.
RCheck the tire for foreign objects.
RCheck whether the whee lislosin gairor the
valve is leaking.
If yo uareunabl etorectify the damage,c on-
tact aquali fied specialis tworkshop.
GWARNING
If yo ufit unsuitable accessories onto tire
valves, the tire valve smaybe overloaded and
malfunction, which can cause tire pressure
loss. Due to their design, retrofitted tire pres- sure monitors kee pthe tire valve open. This
can also resul tintire pressure loss. There is a
ris kofana ccident.
Onlys crewt he standard valve cap or other
valve cap sapproved by Mercedes-Benz for
your vehicl eonto the tire valve.
Use asuitabl epressure gaug etocheck the tire
pressure. The outer appearance of atire does
Tire pressure255
Wheel sand tires
Z

not permitany reliableconclusio nabout the tire
pressure. On vehicles equipped with the elec-
tronict ire pressure monitor, the tire pressure
can be checked in the on-board computer.
The tire temperature and pressure increase
when the vehicl eisinmotion. Thi sisdependent
on the driving speed and the load.
Therefore, yo ushoul donlyc orrect tire pres-
sures when the tire sare cold.
The tire sare cold:
Rif the vehicl ehasbeen parked withou tdirect
sunlight on the tire sfor at leas tthreeh ours
and
Rif the vehicl ehasnot been driven further than
1m ile( 1.6 km)
The tire temperature changes depending on the outsid etemperature ,the vehicl espeed and the
tire load .Ifthe tire temperature changes by
18 ‡(10 †), the tire pressure changes by
approximately10k Pa (0.1 bar/1.5 psi). Take
thisi nto account when checking the pressure of
warm tires. Onlyc orrect the tire pressure if it is
too lo wfor the current operating conditions. If
yo uc heck the tire pressure when the tire sare
warm, the resulting value will be highe rthani f
the tire swerec old. Thi sisnormal. Do not
reduce the tire pressure to the value specified
for coldt ires. The tire pressure woul dotherwise
be too low.
Observe the recommende dtire pressures for
coldt ires:
Ron the Tire and Loading Informatio nplacard
on the B-pillar on the driver's side
Rin the tire pressure table in the fue lfille rflap
(Ypage 119)
Underinflated or overinflated tires
Underinflated tires
GWARNING
Tires with pressure thati stoo lo wcan over-
hea tand burst as aconsequence .Inaddition,
they also suffer from excessive and/or irreg-
ular wear, which can severely impai rthe brak-
ing propertie sand the driving characteristics.
There is ariskofana ccident.
Avoidt ire pressures thata re too lowinallthe
tires, including the spare wheel. Underinflated tire
smay:
Roverheat, leading to tire defects
Radversel yaffect handling
Rwear excessivelya nd/or unevenly
Rhave an adverseeffect on fuelconsumption
Overinflated tires
GWARNING
Tires with excessivelyh ighp ressure can burst
because they are damaged more easily by
roadd ebris, potholes etc. In addition, they
also suffer from irregula rwear, which can
severely impai rthe braking propertie sand the
driving characteristics. There is ariskofa n
accident.
Avoi dtire pressures thata re too high in allthe
tires, including the spare wheel.
Overinflated tire smay:
Rincreas ethe braking distance
Radversel yaffect handling
Rwear excessivelya nd/or unevenly
Rhave an adverseeffect on ridecomfort
Rbe more likelytob ecome damaged
Maximum tire pressures
:Example :maximu mp ermissibl etire pres-
sure
Never exceed the maximu mpermissibl etire
inflation pressure. Alway sobserve the recom-
mended tire pressure for your vehicl ewhen
adjusting the tire pressure (
Ypage 268).
iThe actual value sfor tire sare vehicle-spe-
cifi cand mayd eviate from the value sinthe
illustration.
256Tire pressure
Wheel sand tires

Checking thetirep ressures
Important safety notes
Observ ethe note sont irep ressure
(Ypage 254).
Information on air pressure for th etires on your
vehicle can be found:
Ron th evehicle's Tire and Loading Information
placard on th eB-pillar
Rin th etirep ressure table in th efuel fille rflap
(Ypage 119)
Runde r"Tire pressure "(Ypage 254)
Checking tir epressures manually
To determine and set th ecorrec ttirep ressure,
procee dasfollows:
XRemove th evalvec ap of th etiret hatistob e
checked.
XPress th etirep ressure gage securely onto the
valve.
XRead th etirep ressure and compare it to the
recommended value on th eTire and Loading
Information placard or th etirep ressure table
(
Ypage 254).
XIf th etirep ressure is to olow, increas ethe tire
pressure to th erecommended value.
XIf th etirep ressure is to ohigh,r elease air. To
do so, pres sdown th emetal pin in th evalve,
usingt hetip of apen for example .Then check
th et irep ressure again usingt hetirep ressure
checker.
XScrew th evalvec ap onto th evalve.
XRepeat these steps for th eother tires.
Tir ep ressure monitor
General notes
If at irep ressure monito risinstalled, th evehi-
cle's wheelsh ave sensorsthatm onito rthe tire
pressure sinall four tires. The tir epressure mon-
ito rw arn syou if th epressure drops in oneo r
mor eoft hetires. The tir epressure monito ronly
functionsift hecorrespondings ensorsare
installed in all wheels.
Information on tir epressure sisdisplayed in the
multifunction display. The curren ttirep ressure
of each wheel is shown in the Serv.
menuafter
driving for afew minutes.
Information on th emessage display can be
foun dint he"Checkin gthe tirep ressure elec-
tronically" sectio n(
Ypage 258).
Important safety notes
GWARNING
Eac htire, includingt hespare( if provided),
should be checked at least once amonth
when col dand inflate dtothepressure rec-
ommended by th evehicle manufacturer on
th eT ire and Loading Information placard on
th ed river'sd oor B-pillar or th etirep ressure
label on th einside of th efuel fille rflap. If your
vehicle has tires of adifferent sizet hant he
sizei ndicated on th eTire and Loading Infor-
mation placard or th etirep ressure label, you
should determine th eproper tir epressure for
those tires.
As an added safety feature, your vehicle has
been equipped withat irep ressure monitoring
system (TPMS) that illuminate salow tir epres-
sure telltale when oneorm oreofy our tires
are significantly underinflated. Accordingly,
when th elow tir epressure telltale illuminates,
you should stop and check your tires as soon
as possible, and inflate them to th eproper
pressure .Drivin gonas ignificantly underin-
flated tir ecauses th etiretoo verheat and can
lead to tir efailure. Underinflation also
reduces fuel efficienc yand tir etread life ,and
may affect th evehicle's handlinga nd stop-
pinga bility.
Pleasen otet hatthe TPMS is no tasubstitute
for proper tir emaintenance, and it is th edriv-
er'sr esponsibility to maintain correc ttire
pressure ,evenifu nderinflation has not
reached thel evelt otrigger illuminat
ionoft he
TPMS low tir epressure telltale.
USAo nly:
Tir ep ressure257
Wheels and tires
Z

Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate if the
systemisn ot operating properly. The TPMS
malfunction indicator is combined with the
low tir epressure telltale. When the system
detects amalfunction, the warnin glamp will
flash for approximately aminut eand then
remain continuously illuminated. This
sequence will be repeated every tim ethe vehi-
cle is started as long as the malfunction
exists.
When the malfunction indicator is illuminated,
the syste mmay not be able to detec torsignal
low tir epressure as intended .TPMS malfunc-
tion smay occur for avarietyofr easons,
including the mountin gofincompatible
replacementora lternatetires or wheels on
the vehicle that prevent the TPMS from func-
tioning properly. Always chec kthe TPMS mal-
function telltale afte rreplacing one or more
tires or wheels on your vehicle to ensur ethat
the replacementora lternatetires and wheels
allow the TPMS to continue to function prop-
erly.
It is the driver's responsibility to set the tire
pressure to that recommended for cold tires
which is suitable for the operating situation
(
Ypage 254). Notet hat the correcttirep ressure
for the current operating situation must firstb e
taught-in to the tir epressure monitor .Ifasub-
stantial loss of pressure occurs, the warning
threshold for the warnin gmessageisa ligned to
the taught-in reference values. Restar tthe tire
pressure monitor afte radjusting the pressure of
the cold tires (
Ypage 259). The current pres-
sures are saved as new reference values. As a
result,aw arningmessagew ill appear if the tire
pressure drops significan tly.
The t

ir ep ressure monitor does not warn you of
an incorrectly set tir epressure. Observe the
notes on the recommended tir epressure
(
Ypage 254).
The tir epressure monitor is not able to warn you
of as udden loss of pressure, e.g. if the tir eis
penetrate dbyaforeign object .Inthe eventofa
sudden loss of pressure, bringt he vehicle to a
halt by braking carefully. Avoid abrupt steering
movements.
The tir epressure monitor has ayellow h
warnin glamp on the instrumentc luster for indi-cating
apressure loss or malfunction. The way
that the warnin glamp flashes or lightsupi ndi-
cates whether atirep ressure is too low or
whether the tir epressure monitor is malfunc-
tioning:
Rif the h warnin glamp is lit continuously,
the tir epressure in one or more tires is sig-
nificantly too low. The tir epressure monitor is
not malfunctioning.
Rif the h warnin glamp flashes for around a
minut eand the nremainsl it constantly, the
tir ep ressure monitor is malfunctioning.
In addition to the hwarnin glamp, amessage
appears in the multifunction display. Observe
the information on display messages
(
Ypage 183).
It may tak euptoten minutes for amalfunction
of the tir epressure monitor to be indicated. The
malfunction is indicated firstbyt heh tire
pressure warnin glamp flashingf or approx-
imately one minut eand the nremaining lit. If the
malfunction has been rectified, the htire
pressure warnin glamp goes out afte rdrivingf or
af ew minutes.
The tir epressure values indicated by the on-
board computer may differf rom those meas-
ured at agas st

ation with apressure gauge. The
tir ep ressures shown by the on-board computer
refertot hose measured at sea level. At high
altitudes, the tir epressure values indicated by a
pressure gauge are higher than those shown by
the on-board computer .Inthis case, do not
reduce the tir epressures.
The operation of the tir epressure monitor can
be affected by interference from radio transmit-
tin ge quipment( e.g. radio headphones, two-way
radios) that may be being operated in or near the
vehicle.
Checking th etirep ressuree lectroni-
cally
XMake sure that the SmartKey is in position 2
in the ignition lock.
XPress the =or; button on the steering
wheel to selectt heServ.menu.
XPress the 9or: button to select
Tire Pressure.
XPress the abutton.
The multifunction display shows the current
tir ep ressure of each wheel.
If the vehicle has been parked for over
20 minutes, the Tire pressure will be
258Tirep ressure
Wheels and tires