2011 MERCEDES-BENZ M-CLASS SUV spare wheel

and transpor
tthe wheel in the luggage
compartment.
or
X Depending on the size of the wheel, you
ma yalso be able to secure the faulty wheel
in the emergenc yspare wheel well. In this
case, you must remove the stowage tray
from the emergency spare wheel well and
store it securely in the luggage compart-
ment.
i When you are driving with the collapsible
emergency spare wheel fitted, the tyre
pressur eloss warnin gsystem or the tyre
pressure monitor cannot function reliably.
Only restart the tyre pressure los swarning
system/tyre pressure monitor when the
defective wheel has been replaced with a
new wheel.
Vehicles with tyre pressure monitor: all fit-
ted wheels must be equipped with func-
tioning sensors. The defective wheel
should no longer be in the vehicle. MOExtended tyres (tyres with run-flat
characteristics)
MOExtended tyres (tyres with run-flat char-
acteristics) allow you to continue driving the
vehicle even when one or more tyres lose all
air pressure.
MOExtended tyres may only be used in con-
junction with the activated tyre pressure loss
warning system or with the tyre pressure
monitor.
The maximum permissible distance which
can be driven in run-flat mode depends on the
load in the vehicle. It is 80 km if the vehicle
is partially laden and 30 km if fully laden.
The maximum permissible distance which
can be driven in run-flat mode is counted from
the moment the tyre pressure loss warning
appears in the multifunction displ ay.
Yo um ust not exceed amaximum spee dof
80 km/h. G
WARNING
Th eh andling characteristics of your vehicle
deteriorate in run-flat mode, for example:
R when cornering
R when braking
R when accelerating rapidly
Adapt your driving style accordingly and avoid
sudden changes in direction and sudden
acceleration, as well as driving over obstacles
(i.e. kerbs, potholes), and driving off-road.
This is particularly the case when the vehicle
is heavily laden.
The maximum permissible distance that can
be driven in run-flat mode depends to alarge
exten tonthe loads placed on the vehicle. It
can be shorter due to high speeds, aheavy
load, sudden changes in direction, the road
surface condition, outside temperature, etc.,
or further if you driv ecarefully and conserva-
tively.
Do not continue to drive in run-flat mode if:
R you hear banging noises.
R the vehicle starts to shake.
R you see smoke and smell rubber.
R ESP ®
is intervening constantly.
R there are tears in the sidewalls of the tyre.
After driving in run-flat mode, you must have
the wheel(s) checked for damage at aquali-
fied specialist workshop which has the nec-
essary specialist knowledg eand tool stocarry
out the work required. The faulty tyre must be
replaced in every case.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centr efor this pur-
pose. In particular ,work relevant to safet yor
on safety-related system smust be carried out
at aq ualified specialist workshop.
i Whe nreplacing one or all tyres, make
sure that you only use tyres marked
MOExtended and of the specified size for
the vehicle.
i Vehicles with MOExtended tyres are not
equipped with aTIREFIT kit at th efactory. 342
Flat tyreBreakdown assistance

Usefu
linfor mati on
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviation sare possible .Please
not ethat your vehicle ma ynot be equipped
with all featur es described. This also
applies to safety-releva ntsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 24).Important safet
ynotes G
WARNING
Tyres, wheels or accessories whic hhaven ot
been approved by Mercedes- Benz foryour
vehicle or are not used as they should be, can
impair driving safety. As aresult, you could
cause an accident .Befor epurchasing and
using them, enquire about their suitability,
legal stipulations and factory recommenda-
tions at aMercedes-Benz Ser vice Centre.
Modificatio nwork on the brake system and
wheels is not permitted, nor is the use of
spacer plate sorbrake dust shields. This inva-
lidates th eGeneral Operatin gPermit for the
vehicle.
i Further information about tyres and
wheels can be obtained from any
Mercedes-Benz Ser vice Centre. Oper
ation Notes on driving
R While driving, pay attention to vibrations,
noises and unusual handling characteris-
tics ,e.g. pulling to one side. This may indi-
cate that the wheels or tyres are damaged.
If you suspect that atyre is defective,
reduce your speed immediately. Stop the vehicle as soo
naspossible to chec kthe
wheels and tyres for damage. Hidden tyre
damage could also be causing the unusual
handling characteristics. If you fin dno
signs of damage, hav ethe wheels and tyres
examined at aqualified specialist work-
shop, e.g. aMercedes-Ben zService
Cent re.
R When parkin gyour vehicle, make sure that
the tyres do not get deformed by the kerb
or other obstacles. If it is necessary to drive
over kerbs, speed humps or similar eleva-
tions, tr ytodosos lowly and at an obtuse
angle. Otherwise, the tyres, particularly the
sidewalls, can get damaged. Notes on regularly inspecting wheels
and tyres
R Regularly chec kthe wheels and tyres of
your vehicle for damage (e.g. cuts, punctu-
res, tears, bulges on tyres and deformation,
crack sorseverecorrosion on wheels), at
least ever y14d ays, as well as after driving
off-road or on rough roads. Damaged
wheels can cause aloss of tyr epressure.
R Regu larly check th etyre tread depth and
the conditio nofthe tread across the whole
widt hofthe tyr e(Ypage 357). If neces-
sary, tur nthe front wheels to full lock in
orde rtoi nspect the inner sid eofthe tyre
surface.
R All wheels must hav eavalve cap to protect
the valve against dirt and moisture. Do not
fit anything onto the valve (such as tyre
pressure monitorin gsystems) othe rthan
the standar dvalve cap or other valve caps
approved by Mercedes-Ben zfor your vehi-
cle.
R Regularly chec kthe pressur eofall the tyres
including the emergenc yspare wheel or the
spare wheel, particularly prior to long trips,
and correc tthe pressur easnecessary
(Y page 359). 356
OperationWheels and tyres

M+S tyres
At temperature sbelo w+ 7† ,use winter tyres
or all-season tyres .Both types of tyr eare
identified by th eM+S marking.
Onl ywinter tyres bearing the isnowflake
symbol in addition to the M+S marking pro-
vide the best possible grip in wintr yroad con-
ditions. Only these tyres will allow driving
safet ysystems such as ABS and ESP ®
to
function optimally in winter, as thes etyres
have been designed specifically for driving on
snow.
Use M+S tyres of the same make and tread
on all wheels to maintain safe handling char-
acteristics. G
WARNING
M+S tyres with atrea ddepth of less than
4mmm ust be replaced. They are no longer
suitable for winter use and can no longer pro-
vide sufficien tgrip. This could cause you to
lose control of your vehicle and cause an acci-
dent.
Always observe the maximum permissible
speed specified for the M+S tyres you have
fitted.
If you fit M+S tyres which have alower max-
imu mpermissible speed than that of the vehi-
cle, affix an appropriate warning sign in the
driver' sfield of vision. This can be obtained
at aq ualified specialist workshop, e.g. at a
Mercedes-Ben zService Centre.
Under these circumstances, you should also
restrict the maximu mspeed of the vehicle
using permanent SPEEDTRONIC so that it
does not exceed the maximum permissible
speed for the M+S tyres(Y page 174).
When you have fitted the M+S tyres:
X Check the tyr epressures (Y page 359).
X Restart th etyre pressure los swarning sys-
tem (Y page 360). G
WARNING
If you fit the spare wheel when driving with M
+S tyres, bear in mind that driving stability will be impaired due to unstable cornerin
gchar-
acteristic scaused by the different tyres. You
shoul dtherefore adapt your drivin gstyle and
drive carefully.
Have the spare whee lreplaced at the nearest
qualified specialist workshop which has the
necessar yspecialist knowledge and tools to
carry out the work required. Mercedes-Benz
recommends that you use aMercedes-Benz
Ser vice Centre for thi spurpose. In particular,
work relevant to safety or on safety-related
systems must be carried out at aqualified
specialist workshop. Snow chains
For safety reasons ,Mercedes-Benz recom-
mends that you only use snow chain sthat
hav ebeen specially approved for your vehicle
by Mercedes-Benz ,orthat ar eofac orre-
spondin gstandard of quality.
! Vehicle swith the ON&OFFROAD package
or the AIRMATIC package: do not drive in
ADS SPORT mode when drivin gwith snow
chains fitted.
If you intend to fit snow chains, please bear
the following point sinmind:
R it is not permissible to attac hsnow chains
to all wheel-tyre combinations ;see the
information under "Wheel/tyre combina-
tion s"int he "Wheels and tyres" section.
R snow chains must not be fit tedtoe mer-
gency spare wheels ,e.g. a"Minispare"
emergency spar ewheel.
R fit snow chains only in pair sand only to the
rear wheels .Observ ethe manufacturer's
installation instructions.
! Vehicle swith steel wheels: if you wish
to fit snow chains to steel wheels, make
sure that you remove the respective
wheels' hubcaps first .The hubcaps may
otherwise be damaged. 358
Winter operationWheels and tyres

On vehicle
swith the AIRMATIC package, you
must drive at raised vehicle level if snow
chains have been fitted (Y page 188).
Do not exceed the maximum permissible
speed of 50 km/h.
i You may wish to deactivate
ESP ®
(Y page 63) when pulling away with
snow chains fitted. This way you can allow
the wheels to spin in acontrolled manner,
achievin ganincrease ddriving force (cut-
tin ga ction). Tyre pressure
Tyre pressure specifications
You wil lfind atable of tyre pressures for var-
ious operating conditions on the inside of
your vehicle's fuel filler flap.
Operation with emergency spare wheel:
the applicable value for the emergency spare
wheel is stated on the spare wheel and in the
technical data section.
Operation with atrailer: the applicable
value for the rear tyres is the maximum tyre
pressure value stated on the table insid ethe
fuel filler flap.
The tabl einsid ethe fuel filler fla pmay state
tyre pressures 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 no other data is stated, the tyre pressures
specified on the fuel filler flap appl yfor all
tyres approved for this vehicle. If
at yre size precede satyre pressure, the tyre
pressure information following is only valid
for that tyre size. G
WARNING
Tyre pressure that is eithe rtoo high or too low
has anegativ eeffect on the vehicle's driving
safety ,which coul dlead you to cause an acci-
dent. Therefore, you should regularly check
the pressur eofall the tyres, particularly prior
to long trips, and correct the pressure as nec-
essary.
To test tyre pressure, use asuitabl epressure
gaug e. Th eouter appearance of atyre does
not permit any reliabl econclusion about the
tyr ep ressure. On vehicles fitted wit hthe elec-
tronic tyr epressure monitor, th etyre pres-
sure can be checked using the on-board com-
puter. G
WARNING
Do not fit anything else to the tyre valve other
than the standard valve cap. In particular, ret-
rofitted tyre pressure monitors which are
screwed on to the valve may overload it and
cause it to fail. Due to their design, the valve
is kept open continuousl y, whichmay lead to
air loss. Tyr
epressure
359Wheels and tyres Z

tyre is penetrated by
aforeign object .Inthe
event of asudden loss of pressure, bring the
vehicl etoah altbyb rakingcarefully. Do not
make any sudden steering movements when
doing so.
Informatio nontyre pressures is displayed in
the multifunction display. After afew minutes
of driv ing, the curren ttyre pressure of each
tyre is sho wn inthe multifunction display.
i Thet yre pressure values indicated by the
on-board computer may differ from those
measured at afilling station with apressure
gauge. Th etyre pressures shown by the on-
board computer refer to thos emeasured at
sea level. At high altitudes, the tyr epres-
sure values indicated by apressure gauge
are higher than thos eshown by the on-
boar dcomputer .Inthis case ,donot reduce
the tyr epressures.
i Theo peration of the tyr epressure moni-
to rc an be affected by interference from
radio transmitting equipment (e.g. radio
headphones ,two-way radios) that may be
being operated in or near the vehicle.
Checking tyr epressure electronically X
Make sure that the key is in position 2
(Y page 139) in the ignitio nlock.
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 curren ttyre pressure for each wheel
will be displayed in the multifunction dis-
play.
If the vehicle has been parked for longe rthan
20 minutes, the Tyre pressures will be
displaye
dafter afew minutes of driving message appe
ars.
After ateach-in period, the tyr epressure
monito rautomatically recognise snew
wheels or new sensors. As long as aclear
allocation of the tyre pressure values to the individual wheels is not possible
,the Tyre pressure monito
ractive displa
ymes-
sage is shown instead of the tyr epressure
display. Th etyre pressures are already being
monitored.
i Ifas pare wheel/emergenc yspare wheel
is fitted, the system may continue to show
the tyr epressure of th ewheel that has
been removed for afew minutes. If this
occurs, note that the value displayed for
the position where the spare wheel/emer-
gency spare wheel is fitted is not the same
as the spare wheel/emergenc yspare
wheel's current tyr epressure.
Tyre pressure monito rwarning mes-
sages If the tyre 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 affected by asignificant loss
of pressure is highlighted in th epressure dis-
play.
If the Please correc ttyrep ressure messag
eappear sinthe multifunctio ndis-
play:
X Chec kthe tyr epressure on all fou rwheels
and correc titifn ecessary.
i If the wheel positions on the vehicle are
inter changed, the tyre pressures may be
displ ayed for th ewrong positions for a
short time .This is rectified after afew
minutes of driving, and the tyr epressures
are displayed for th ecorrect positions.
Restarting th etyre pressure monitor When yo
urestar 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 362
Tyr
epressureWheels and tyres

typicall
ywearm ore on the shoulders and the
rear tyres in the centre.
On vehicles that have the same size front and
rear wheels, yo ucan interchange the wheels
ever y5000kmto1 0,000 km depending on
the degre eoftyre wear. Do not reverse the
direction of tyre rotation.
Clea nthe con tact surface softhe wheel and
the brake disc thoroughly ever ytime awheel
is interchanged. Chec kthe tyr epressure and,
if necessary, restart th etyre pressure loss
warning syste morthe tyrepressure monitor.
! On vehicles fitted wit hatyre pressure
monitor, electronic components are loca-
ted in the wheel.
Tyre-fitting tools should not be applied in
the area of the valve, as this could damage
the electronic components.
Always have the tyres changed at aquali-
fied specialist workshop, e.g. aMercedes-
Benz Servic eCentre. Direction of rota
tion
Tyres with aspecified direction of rotation
have additional benefits, e.g. if there is arisk
of aquaplaning. You will only gain these ben-
efits if the correct direction of rotation is
observed.
An arrow on the sidewall of the tyre indicates
its correct direction of rotation.
You may fit an emergenc yspare wheel/spare
wheel against the direction of rotation.
Observe the tim erestric tion on use as well as
the speed limitation specified on the emer-
genc yspare wheel/spar ewheel. 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. Cleanin
gthe whee ls G
WARNING
Do not us ehigh-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clean your
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent. Wheel and tyr
ecombinations Points to remember
! For safety reasons, Mercedes-Ben zrec-
ommends that you only use tyres and
wheels which have been approved by
Mercedes-Ben zspecifically for your vehi-
cle.
These tyres have been specially adapted
for use with the contro lsystems ,suc has
AB SorE SP®
,a nd are marked as follows:
R MO =Mercedes-Ben zOriginal
R MOE =Mercedes-Ben zOriginal Extended
(tyres with run-flat characteristics)
R MO1 =Mercedes-Ben zOriginal (only cer-
tain AMG tyres)
Mercedes-Benz Original Extended tyres
may only be use donwheels that hav ebeen
specifically approved by Mercedes-Benz.
Only use tyres, wheels or accessories tes-
ted and approved by Mercedes-Benz. Cer-
tain characteristics, e.g. handling, vehic le
nois eemis sions or fuel consumption, may
otherwise be adv ersely affected. In addi-
tion, when driving with aload, tyr edimen-
sion variations could cause the tyres to
come into contact with the bodywork and
axle components .This could result in dam-
age to the tyres or the vehicle.
Mercedes-Ben zaccept snoliability for
damag eresulting from the use of tyr es,
wheel soraccess orieso the rthan those tes-
ted and approved.
Further information about tyres, wheels
and approved combination scan be 364
Wheel and tyr
ecombinationsWheels and tyres

"Minispare
"emergenc yspare wheel 26 Tyres Wheels V1 V2 V3
T1
55/90 R18 113 M
Tyre pressure: 420 kPa (4.2 bar/61 psi) 4.0
Bx18H2ET40 # # #
Your vehicle may be equipped with TIREFIT,
a"Minispare" emergenc yspare wheel, depending
on the country, the engine and the wheels fitted.
i The specified tyr epressure is printe dinyellow on the emergency spare wheel.
26 Use of snow chains not permitted. Observ ethe notes in the "Snow chains" section. Wheel and tyr
ecombinations
367Wheels andtyres Z