2011 MERCEDES-BENZ M-CLASS SUV 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

As soon as th
evehicle is loaded:
X Preven tthe vehicle from rolling away by
applying the electric parkin gbrake.
X Shift th eautomatic transmission to posi-
tion P.
X Turn the key in the ignition lock to position
0 and remove the key from the ignition
lock.
X Secure the vehicle.
! Only lash the vehicle down by the wheels
or wheel rims, not by parts of the vehicle
such as axle or steering components. Oth-
erwise, the vehicle could be damaged. Notes for 4MATIC vehicles
! Vehicles with 4MATIC must not be towed
with the front or rear axle raised; otherwise,
the transmission may be damaged.
If the vehicle has transmission damage or
damage to the front or rear axle, have it trans-
ported on atransporter or trailer.
In the even tofdamage to the ele ctrical
system
If the battery is defective, the automatic
transmission will be locked in position P.To
shif tthe automatic transmission to position
N,y ou must provide power to the vehicle's
electrical system in the same way as when
jump-startin g(Ypage 348).
Hav ethe vehicle transported on atransporter
or trailer. Recovering
avehicle that ha sbecome
stuck
! When recovering atrapped vehicle ,donot
je rk the vehicle or pull it at an angle. If the
tractive powe rist oo high, th evehicles
could be damaged.
If th edrive wheels ge ttrapped on loose or
muddy ground, recover th evehicle with the
utmost care, especially so if the vehicle is
laden. Never attempt to recover
avehicle with a
trailer atta ched.
Pull out the vehicle backwards, if possible,
using the tracks it made when it became
stuck. Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission
must not be tow-star ted. The tra nsmission
ma yotherwise be damaged. Electrical fuses
Important safet
ynotes G
WARNING
Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correct fuse ratin gfor the system scon-
cer ned. Do not attempt to repair or bridge
faulty fuses. Usin gfuses which have not been
approved or attempting to repair or bridge
faulty fuses could cause the fuse to be over-
loaded and result in afire. Have the cause
traced and rectified at aqualified specialist
workshop.
The fuses in your vehicle serve to close down
faulty circuits. If afuse blows, all the compo-
nen tson the ci rcuit and their functions stop
operating.
Blown fuses must be replaced with fuses of
the same rating, which you can recognise by
the colour and fuse rating. The fuse ratings
are listed in the fuse allocation chart.
If the newly inser tedf use also blows ,have the
cause traced and rectified at aqualified spe-
cialist workshop, e.g. aMercedes-Benz
Servic eCentre.
! Only use fuses that have been approved
for Mercedes-Ben zvehicles and which
have the cor rect fuse rating for the system
concerned. For the fuse boxes in the engine
compartment and unde rthe rea rbench 352
Electrical fusesBreak
down assistance

Usefu
linfor mation ............................ 356
Important safet ynotes .................... 356
Operation ........................................... 356
Winter oper ation ............................... 357
Ty re pressure .................................... 359
Changing awheel ............................. 363
Wheel and ty recombinations ..........364 355Wheels and
tyres

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

Tyre tread
G
WARNING
Bea rinm ind that:
R tyre gri pdecrease srapidly on wetroads
when the tread depth is less than 3mm.
Thus ,you should repl acet yres that have
insufficient tread.
R winter tyres sho uld bereplaced when the
trea ddepth is 4mmorl ess as they no lon-
ger provide adequat egrip.
R thet rea donat yre may not wear evenly.
Thus ,you should regularly chec kthe tread
depth and the condition of the tread across
the entire widt hofall tyres. If necessary,
turn the fron twheels to full lock in order to
inspec tthe tyr etrea dm ore easily.
Otherwise, you coul dlose control of the vehi-
cle and cause an accident due to the reduced
grip of the tyres on the road. Note
sons electing, fitting and replac-
ing tyres
R Only fit tyres and wheels of the same type
and make.
R Only fit tyres of the correct size onto the
wheels.
R After fittin gnew tyres, run them in at mod-
erat espeeds for the first 10 0km, as they
onl yreach their ful lperformanc eafter this
distance.
R Do not drive wit htyres which have too little
tread depth ,asthis significantly reduces
the traction on wet roads (aquaplaning).
R Replace the tyres after six year satthe lat-
est, regardless of wear .This also applies to
the emergency spar ewheel/spar ewheel. MOExtended ty
res( tyres with run-flat
characteristics)
MOExtended tyres (tyres with run-flat char-
acteristics) allo wyou to continue drivin gthe vehicle even when one or mor
etyres los eall
air pressure.
MOExtended tyres may only be used in con-
junction with the tyre pressure loss warning
system or with the tyre pressure monitor and
on wheels specifically tested by Mercedes-
Benz.
i Vehicles with MOExtended tyres are not
equipped with aTIREFIT kit at th efactory.
It is therefore recommended that you addi-
tionally equip your vehicle with the TIREFIT
kit if you fit tyres that do not feature run-
flat properties, e.g. winter tyres. ATIREFIT
kit can be obtaine dfrom aMercedes-Benz
Ser vice Centre.
Notes on driving with MOExtended tyres in
the event of aflat tyre can be found in the
"Breakdown assistance" section
(Y page 342). Winter operation
Points to remember
At the onset of winter ,have your vehicle win-
terproofed at aqualified specialist workshop,
e.g. at aMercedes-Ben zService Cent re.
Observe the notes in the "Changin gawheel"
section (Y page 363). Drivin
gwith summer ty res
At temperatures below +7 †, summer tyres
los ee lasticit yand therefore traction and
braking power; chang ethe tyres on your vehi-
cle to M+S tyres .Using summer tyres at very
cold temperatures could cause tears to form,
thereby damagin gthe tyres permanently.
Mercedes-Ben zcannot accept responsibility
for this type of damage. Winter operation
357Wheels andtyres Z

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

G
WARNING
Shoul dthe tyr epressure dro prepeatedly:
R check the tyr efor foreign bodies.
R check whether the wheel is losing air or the
valve is leaking.
R make sure that only avalve cap approved
by Mercedes-Benz is fitted on the tyre
valve.
Tyre pressures that are too low have anega-
tiv ee ffect on vehicl esafety, which could lead
you to cause an accident.
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 you are drivin gatand the load on the
tyres, the tyre temperature and thus the tyre
pressure may chang ebyapproximately
10 kPa (0. 1bar/1 .5psi) per 10 †. Take this
int oa ccount whe nchecking the pressur eof
warm tyres and only correc titifitist oo low
for the curren toperating conditions.
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. by
causin gaquaplaning)
i The tyr epressure values given for low
load sare minimum values which offe ryou
good rid ecomfort characteristics.
However, you can also use the values given
for higher loads. These ar epermissible and
will not adversely affect the running of the
vehicle. H
Environmenta
lnote
Check the tyre pressure regularly, at least
every 14 days.
You will find information on tyre pressures for
the vehicle's factory-mounted tyres on the
plates described here. Tyr
epressure loss warning system
Important safety notes Whil
ethe vehicle is in motion, the tyr epres-
sure loss warning system monitors th eset
tyr ep ressure using th erotational speed of
the wheels. This enables the system to detect
significant pressure loss in atyre. If the speed
of rotation of awheel changes as aresult of
al oss of pressure, acorrespondin gwarning
message will appea rinthe multifunction dis-
play. G
WARNING
The tyr epressure loss warning system does
not warn you of an incorrectly se ttyre pres-
sure. The table on the insid eofthe fuel filler
fla pw ill help you decide whether the tyre
pressures should be corrected.
The tyre pressure loss warnin gsystem does
not replace the need to regularly check your
vehicle's tyre pressures, since an even loss of
pressure on several tyres at the same time
cannot be detecte dbythe tyr epressure loss
warning system.
Th et yre pressure monitor is not able to warn
you of asudden loss of pressure, e.g. if the
tyre is penetrated by aforeign objec t.
In the event of asudden loss of pressure, bring
the vehicle to ahalt by braking carefully. Do
not make any sudden steering movements
when doing so.
The function of the tyre pressure loss warning
system is limited or delayed if:
R snow chains are fitted to your vehicle's
tyres.
R road conditions are wintry. 360
Tyr
epressureWheels and tyres