2011 MERCEDES-BENZ M-CLASS SUV fuel

Problem Possible causes/consequences and
M Solutions
8
The yellow reserve fuel
warnin glamp lights up
while the engine is run-
ning. The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated when the fuel level
drops into the reserve range.
X Refuel at the nearest filling station. ?
The red coolant warn-
ing lamp lights up while
the engine is running
and the coolant tem-
perature gauge is at the
start of the scale.
The temperature senso
rfor the coolant temperatur egauge is
faulty.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine. Do not continue driving
under any circumstances.
X Apply the electric parking brake.
X Consult aqualified specialist workshop. Warnin
gand indicator lam psin the instru ment cluster
291On-boardcomput er anddisplay s Z

Cleaning th
epaintwork Scra
tches, corrosiv edeposits ,area saffected
by corrosion and damage ca used by inade-
quate care canno talways be completely
repaired. In such cases, visit aqualified spe-
cialist workshop, e.g. aMercedes-Benz
Servic eCentre.
X Remov eimpurities immediately, where
possible, whilst avoiding rubbing to ohard.
X Soak insect remain swith insec tremover
and rinse off the treated area safterwards.
X Soa kbird droppings with water and rinse
off the treated areas afterwards.
X Remove coolant, brak efluid, tree resin,
oils, fuels and greases by rubbin ggently
with acloths oaked in petroleum ether or
lighter fluid.
X Use tar rem overtor emove tar stains.
X Use silicone rem overtor emove wax.
! Do not affix:
R stickers
R films
R magnetic plates or simila ritems
to painted surfaces. You could otherwise
damage the paintwork.
Car eand treatment of matt paintwo rkIf
your vehicle has aclear mat tfinish, observe
the followin ginstructions in order to avoid
damage to the paintwork due to incorrect
care.
These notes also appl ytolight alloy wheels
with aclear mat tfinish.
! Neve rpolish the vehicle or the light alloy
wheels. Polishing makes the paintwork
shiny. !
The following ma ycause the paint to
become shiny and thus reduce the matt
effect:
R Vigorous rubbing with unsuitable mate-
rials.
R Frequent use of car washes.
R Washing the vehicle in direct sunlight.
! Never use paint cleaner, buffing or pol-
ishing products, or glos spreserver, e.g.
wax .These product sare onl ysuitable for
high-glos ssurfaces. Thei ruse on vehicles
wit hm att finish leads to considerable sur-
face damage (shiny, spotted areas).
Always have paintwork repairs performed
at aq ualified specialist workshop, e.g. a
Mercedes-Benz Servic eCentre.
! Do not use wash programs with ahot wax
treatment under any circumstances.
i The vehicle should preferably be washed
by hand using asoft sponge, car shampoo
and plent yofwater.
i Use only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products.
Cleaning the windows G
WARNING
Switch off the windscreen wipers and remove
the key from the ignition lock before cleaning
the windscreen or the wiper blades. On vehi-
cles with KEYLESS-GO, press the Start/Stop
button repeatedly until all indicator lamps in
the instrument cluster have gone off. The
windscreen wipers could otherwise move and
injure you.
X Clean the inside and outside of the win-
dows with adamp cloth and acleaning
agent that is recom mended and approved
by Mercedes-Benz.
! Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vent stoc lean the inside of the windows. 326
CareMaintenance and care

tems mus
tbec arrie dout at aquali fieds pe-
cialist workshop.
Ty re pressure of 180 kPa (1.8 bar/
26 psi) is reached X
Switch off the tyre inflation compressor.
X Unscrew the fille rhose from the valve of
the faulty tyre.
! Afteru se, excess TIREFIT ma yrun out of
the filler hose. This may cause stains.
Therefore, place the filler hos einthe plastic
bag whic hcontained the TIREFIT kit.
X Stow the tyr esealan tbottle, the tyr einfla-
tion compresso rand the warning triangle.
X Pull away immediately. G
WARNING
Do not exceed the maximum speed of
80 km/h.
The "max. 80 km/h" labe lmust be affixed in
the driver's field of vision.
The vehicle's handling characteristic smay be
affected.
X Stop after driving for approximately ten
minutes and check the tyre pressure with
the tyre inflation compressor. G
WARNING
If the tyre pressure is less than 130 kPa
(1.3 bar/2 0psi), the tyr eistoo severely dam-
aged. Do not driv eany further. Consult a
qualified specialis tworkshop which has the
necessary specialist 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.
X Correct the tyre pressure if it is still at least
130 kPa (1.3 bar/20 psi) (for the values,
see the fuel filler flap). X
To increase the tyr epressure: switchon
the tyre inflation compressor. E
Pressure releas ebutton
F Pressure gauge
X To reduce the tyr epressur e:press pres-
sure release button Eon the filler hose.
X Stow the tyr esealan tbottle, the tyr einfla-
tion compresso rand the warning triangle.
X Drive to the neares tworkshop and have the
tyr ec hange dthere.
X Hav ethe tyr esealan tbottle replaced as
soon as possible at aqualified specialist
workshop, e.g. at aMercedes-Benz Ser vice
Centre. H
Environmental note
Have the use dtyre sealant bottle dispose dof
professionally, e.g. at aMercedes-Benz
Ser vice Centre.
X Have the tyre sealant bottle replaced every
four years at aqualified specialist work-
shop, e.g. aMercedes-Benz Ser vice
Centre. Changing
awhee land fitting th espare
wheel
Preparing the vehicle G
WARNING
The wheel and tyre size of the emergency
spare wheel/s pare wh eelm ay differ to tha tof
the damaged wheel. Whe nusing an emer- Flat ty
re
337Breakd ownassistance
Z

Jum
p-starting G
WARNING
There is arisk of acid burns when jump-starting avehicle due to the gases which escape from
the battery. Do not lean over the batter ywhile the engin eisbeing jump-started. G
WARNING
Gases escapin gfrom th ebattery during jump-starting may cause minor explosions. Avoid cre-
ating sparks. Keep naked flames away from the battery, and do not smoke.
Comply with safety precautions when handling batteries. You will find these under "Battery" in
the index.
! Avoid repeated and lengthy startin gattempts. Otherwise, non-combuste dfuel may dam-
age the catalytic converter 24
and create arisk of fire.
Do not use arapid-charging device to start the engine.
Make sure the jump leads are not damaged.
Make sure the jump leads are not touching any other metal objects when they are connected
to the battery.
If your vehicle's battery is discharged ,the engin ecan be jump-started from another vehicle
or from asecond batter yusing jum pleads.
Observ ethe followin gpoints:
X The battery is not accessible in all vehicles. If the other vehicle' sbattery is not accessible,
jump-start the vehicle using asecond batter yorajump-star ting device.
X Only jump-start the vehicl ewhen th eengineisc old an dthe catalytic converter system has
cooled down 25
.
X Do no tstart the engine if the battery is frozen. Let the battery thaw first.
X Jump-starting may only be performed from batterie swithanominal voltage of 12 V.
X Only use jum pleads which have asufficient cross-section and insulated terminal clamps.
X Make sure that the jump leads cannot come into contact with parts, such as the pulley or
the fan. Thes eparts move when the engine is started and while it is running.
X If the battery is fully discharged ,leave the batter ythat is being used to jump-star tconnected
for afew minutes befor eattempting to start. This charges the empty battery alittle.
i Jump leads and further information about jump-startin gcan be obtained from any
Mercedes-Ben zService Centre, for example.
X Make sure that the two vehicles do not touch.
X Secure the vehicle by applying the electric parking brake.
X Shif tthe transmission to position P.
X Tur nthe key to position 0(Y page 139) in the ignition lock and remove it. On vehicles with
KEYL ESS-GO ,make sure the ignition is switched off (Y page 139). All indicator lamps in the
instrumen tcluster must be off.
24 Only vehicles with apetrol engine.
25 Only vehicles with apetrol engine. 348
Jump-startingBreakdown assistance

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

R
you are drivin gonsandorg ravel.
R yo ua dopt averys porty driv ings tyle (cor-
nering at hig hspeeds or driv ingw ith high
rates of acceleration).
R you are towing avery heavy or lar getrailer.
R you are driving with aheavy load (in the
vehic le oron the roof).
Restarting th etyre pressure lo sswarn-
ing system Restart the tyre press
urel oss warnin gsystem
if you have:
R changed the tyre press ure
R changed the whe elso rtyres
R fitted new wheels or tyres
X Before restarting, consult the table of tyre
press ures on the inside of the fuel filler flap
to ensur ethat the tyr epressure in all four
tyre siss et correctly for the respective
operating conditions.
X Observ ethe notes in the section on tyre
pressures (Y page 359). G
WARNING
The tyr epressure loss warn ings ystem can
only give reliabl ewarnings if you have set the
correct tyre pressure.
If an incorrect tyre pressure is set, these
incorrect values wil lbemonitored.
At yre with insufficient pressure results in
vehicle instability when driving, thu sincreas-
ing the risk of an accident.
X Make sure that the key is in pos i-
tion 2(Ypage139) in the igniti onlock.
X Press =or; on the steering wheel
to select the Serv. menu.
X Press 9or: to select Tyre pres‐ sure .
X Press the abutton.
The RunF lat Indicato ractive Restart with OK message ap
pears in the
multifunction display. If you wis
htoconfirm the restart:
X Press the abutton.
The Tyre press. no wOK? message
ap pe ars in the multifunction display.
X Press the 9or: button to select
Yes .
X Press the abutton.
The RunF lat Indicato rrestarted message ap
pears in the multifunction dis-
play.
After ateach-in period, the tyr epressure
loss warn ings ystem wil lmonitor the set
tyr ep ressures of all fou rtyres.
If you wis htocancel the restart:
X Press the %button.
or
X If the Tyre press. now OK? message
appears ,press 9 or: to select
Cancel .
X Press the abutton.
Th et yre press urev alues stored at the last
restart wil lcontinue to be monitored. Tyre pressur
emonitor
Important safety notes If
at yre press urem onitor system is fitted, the
vehicle's wheels have sensor sfitted that
monitor the tyre pressures in all four tyres.
The tyre pressure monitor warns you when
the pressure drops in one or more of the
tyres. The tyre pressure monitor only func-
tions if the correct sensors are fitted to all
wheels. G
WARNING
The tyre pressure monitor does not warn you
of an incorrectly set tyre pressure. The table
on the inside of the fuel filler flap wil lhelp you
decide whether the tyre pressures should be
correc ted.
The tyr epressure monitor is not abl etow arn
you of asudden loss of pressure, e.g. if the Tyr
epressure
361Wheels and tyres
Z

detec
tthe new referen ce values after you
have changed th etyrep ressure.
i For an overview of the menus, see
(Y pag e238).
If you wis htodefinethe new reference values
manually:
X Use the tabl eonthe insid eofthe fuel filler
fla ptoe nsure that the tyre pressure is set
correctly in all four tyres for the current
operating conditions.
Also observe the notes in the section on
tyre pressures (Y page359).
X Make sure tha tthe key is in position 2in
the ignition lock.
X Press the =or; button on the steer-
ing wheel to selec tthe Service menu.
X Press the 9or: button to select
Tyre pressu re .
X Press the abutton.
The multifunction display shows the cur-
ren ttyre pressure of the individual tyres or
the Tyrepressures will be dis‐ played after a few minutes of driv‐
ing message.
X Press the :button.
The Usec urrent 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 checks whether 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-
sur em onitor 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. Changing
awheel Flat tyre
Th e" Breakdown ass istance" section
(Y pag e334) contain sinformation and notes
on how to dea lwith aflat tyre. It also provides
instructions on changing awhee lorf itting the
spar ewhee lore mergency spar ewheel. Interch
angin gthe wheels G
WARNING
Interchange th efront and rea rwheels only if
they hav ethe sam edimensions :for example
size, offset ,etc.
After every whee linterchange/change, have
the tightening torque checked at aqualified
specialist workshop that has the necessary
specialist knowledg eand tool stocarry out
the work required. Mercedes-Benz recom-
mends that you use aMercedes-Benz Service
Centr efor this purpose. In particular ,work
relevant to safet yoronsafety-related sys-
tems must be carried out at aqualified spe-
cialist workshop.
The wheel scould work loose if they are not
tightened to atorqu eof150 Nm.
For safety reasons, Mercedes- Benz recom-
mends that you only use wheel bolts of the
correct siz ewhich hav ebeen approved for
Mercedes-Ben zvehicles.
The wear patterns on the fron tand rea rtyres
differ ,dependin gontheopera tingconditions.
Interchange the wheels before aclear wear
pattern has formed on th etyres. Front tyres Changing
awheel
363Wheels and tyre s Z