engine MERCEDES-BENZ M-CLASS SUV 2011 Owners Manual

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

X
Switch off al lelec trical consumers (e.g. radio ,blow er, etc.).
X Ope nthe bonnet (Y page 318). Position number
Bidentifies the charged battery of the other vehicle or an equivalent jump-
startin gdevice.
X Slide cover :of positiv eterminal ;in the direction of the arrow.
X Connect positiv eterminal ;on your vehicle to positiv eterminal =of donor battery B
using the jum plead, beginning with your own battery.
X Start the engine of the donor vehicle and run it at idling speed.
X Connect negative terminal ?of donor battery Bto eart hpoint Aof your vehicle using
the jum plead, connectin gthe jum plead to donor battery Bfirst.
X Start the engine.
X Allow the engine to run for afew minutes befor edisconnecting the jump lead.
X First, remov ethe jum plead from eart hpoint Aand negative terminal ?,then from positive
terminal ;and positive terminal =,each time disconnecting from the contacts on your
own vehicle first.
X After removing the jump lead, close cover :on positive terminal ;.
X Have the battery checked at aqualified specialist workshop, e.g. aMercedes-Ben zService
Cent re.T he jump-star ting procedure is not astandard operatin gstate; therefore, have the
battery checked. Towing and tow-starting
Important safet
ynotes
Observe the legal requirements for the rele-
vant countries when towing. G
WARNING
If you tow the vehicle, you must use arigid
towing bar if: Towing and tow-starting
349Breakdown assis tance
Z

R
the engine is not running.
R there is abrake syst emmalfunction.
R there isam alfunction in the power supply
or the vehicle' selectrical system.
The power assistance for the steering and the
brake forc ebooster do not work when the
engin eisnot running. You will need more
force to steer and brake, you may have to
depress the brake pedal with maximu mforce.
Before towin gaway ,make sure that the steer-
ing can be moved and is not locked.
If you tow or tow-star tanothe rvehicle, its
weight must not exceed the maximu mper-
missible gross vehicle weight of your vehicle. G
WARNING
The vehicle is braked when the HOL Dfunction
or DISTRONIC PLUS is activated. Therefore,
deactivate HOLD and DISTRONIC PLUS if the
vehicle is to be towed.
It is better to have the vehicle transported
than to have it towed.
! You may tow the vehicle for amaximum
of 50 km. Atowing speed of 50 km/h must
not be exceeded.
For towin gdistances over 50 km, the entire
vehicle must be lifted up and transported.
! Make sure that the electric parkin gbrake
is released. If th eelectric parkin gbrake is
faulty, visit aqualified specialist workshop.
! Only secure the tow rope or towing bar to
the towing eyes. The vehicle may otherwise
be damaged.
! Do not use the towing eye for recovery,
as this could damage the vehicle. If in
doubt, recover the vehicle with acrane.
! When towing, pull awa yslowly and
smoothly. If the trac tivepower is too high,
the vehicles could be damaged.
! To tow vehicles with KEYLESS-GO, use
the key instead of the Star t/Stop button.
Th ea utomatic transmission may otherwise switch to position
Pwhen you open the
driver' sorfront-passenger door which
could damag ethe transmission.
! Vehicles with differential locks: make
sur ethe differential lock sare in automatic
mode. Th edifferential locks must not be
switched on by hand when towing the vehi-
cle. The transmission may otherwise be
damaged.
If the vehicle has suffered transmission dam-
age, have it transported on atransporter or
trailer.
Th ea utomatic transmission must be in posi-
tion Nwhen the vehicle is being towed.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the key in the ignition lock to
position 2
R cannot shift the automatic transmission to
position N
i Before the vehicle is towed, switch off the
automatic locking feature (Y page 249).
You could otherwis ebelockedout when
pushing or towing the vehicle.
Deactivate tow-away protection
(Y page 69) before the vehicle is towed. Fitting/removing the towing eye
Fitting the towing eye Vehicles with
atrailer to whitch: if you intend
to use the vehicle for towing, fold out the ball
coupling and connect the towbar to it
(Y page 228).
X Remove the towing eye from the vehicle
tool kit (Y page 333).
The mountings for the removable towing eyes
are located in the bumpers. They are at the
front and at the rear ,under the covers. 350
Towing and tow-startingBreakdow
nassistance

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

seat
,only use fuses with the suffix "S".
Components or systems could otherwise
be damaged. Before changin
gafuse
X Park th evehicle and apply the electric park-
ing brake.
X Switch off all electrical consumers.
X Remov ethe key from the ignition lock.
The fuses ar elocated in variou sfuse boxes:
R fuse box on the front-passenger side of the
dashboard
R fuse box in the engine compartment on the
right-hand side of the vehicle, when viewed
in the direction of travel
R fuse box under the rear bench seat
The fuse allocation chart is located in the fuse
box (Y page 353 )under the rear bench seat. Dashboard fuse box
! Do not use apointed objec tsuch as a
screwdriver to open the cover in the dash-
board. You could damage the dashboard or
the cover. X
To open: pull cover :outwards in the
direction of the arrow and remove it.
X To close: clip in cover :on the front of
the dashboard.
X Fold cover :inwards until it engages. Fuse box in the engin
ecompar tment
X Open the bonnet (Y page 318). X
Remove any existing moisture from the
fuse box using adry cloth.
X To open: open clamps ;.
X Fol dc over :upwards in the direction of
the arrow and remove it.
! Make sure that no moistur ecan enter the
fuse box when the cover is open.
X To close: check whethe rthe seal is lying
correc tlyinc over:.
X Insert cover :at the side of the fuse box
int ot he retainer.
X Fold down cover :and close clamps ;.
! The cover must be fitted properly. Mois-
tur eord irt could otherwise impair the oper-
ation of the fuses.
X Close the bonnet (Y page 319). Fuse box under the rear benc
hseat
X Fold the right-hand rear bench seat
forwar d. Electrical fuses
353Breakdownassistance Z

"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

H
Environmenta
lnote
Daimler AG also supplies reconditioned
assemblies and part swhicha re of the same
quality as new parts. For these, the same war-
ranty applie sasfor new par ts.
Always spe cify the vehicle identificatio nnum-
ber (VIN )(Y page 372) and th eengine num-
ber (Y page373)w hen orderi nggenuine
Mercedes-Ben zparts. Vehicle electronics
Tampering with th
eengine electron-
ics G
WA
RNING
Only have work on the engin eelectronics and
related component scarried out at aqualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required .Mercedes-Ben zrecom-
mends that you use aMercedes-Ben zService
Centr efor this purpose. In particular ,work
relevant to safet yoronsafety-related sys-
tems must be carried out at aqualified spe-
cialist workshop .Otherwise, the vehicle's
roadworthiness could be affected.
! Only have maintenanc ework on the
engin eelectronics and its associated parts,
such as control units, sensor sand connec-
tor leads, carried out at aqualified special-
ist workshop, e.g. aMercedes-Benz Ser vice
Centre. Vehicle compo nentsm ay other-
wise wear mor equickly and the vehicle's
operatin gpermit may be invalidated. Retrofitting of two-way radios and
mobile phones (RF transmitters)
Use th eTechnical Specification
ISO/TS 21609 30
implementation regulation
when retrofitting RF (radi ofrequency) trans-
mitters. If your vehicle has fittings for two-way radio
equipment, use th
epower supply or aerial
connection sintended for use with the basic
wiring. Be sure to obser vethe manufacturer's
additional instructions when installing the fit-
tings.
! Hav eaftermarket radi ofrequency trans-
mittin gequipmen tinstalled at aquali fied
sp ec ialist worksho p. Mercedes-Benz rec-
ommends that you use aMercedes-Benz
Ser vice Centre for thi spurpose.
The transmission output at the aerial base
must not exceed the maximum values below. Waveband Maximum trans-
mission output
(PEAK)
Short wave
(f
<54M Hz) 100 W
4mw
aveband 30 W
2mw
aveband 50 W
Trunked radio/Tetra 35 W
70 cm waveband 35 W
GSM 900/AMPS 10 W
GSM 1800 10 W
UMTS 10 W
The following aerial positions may be used if
RF transmitters have been properly installed:
30 ISO/TS 216 09–Technical Specification for Road Vehicles (EMC) guidelines for installation of aftermarket
radio frequenc ytransmitting equipment. Vehicle electronics
371Technicaldata Z

?
Vehicl eidentification number (VIN)
A Maximum permissible gross vehicle
weight
B Gross combination mass
C Maximum permissible front axle load
D Maximum permissible rear axle load
E Paint code Vehicle identification number (VIN)
In addition to being stamped on the vehicle
identification plate, the vehicle identification
number (VIN) is also stamped onto the vehicle
body. It is located in the lower part of the
right-han dA-pillar. X
Ope nthe front right-hand door.
X Open cover :in the direction of the arrow
and remove it.
You will see the vehicle identification num-
ber (VIN). Engine number
The engin enumber is stamped into the crank-
case. More information can be obtained from
any Mercedes-Benz Service Centre. Service products and capacities
Important safety notes
Service products include the following:
R fuels (e.g. petrol, diesel)
R additives for exhaust gas aftertreatment
(AdBlue ®
)
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washe rfluid
Vehicle component sand thei rrespective
lubricants must match. Mercedes-Ben zrec-
ommends that you use products that have
been tested and specially approved by
Mercedes-Ben z.These product sare listed in
this Mercedes-Be nzOwner's Manual in the
relevant section.
You can recognise service product sapproved
by Mercedes-Ben zbythe fol lowinginscrip-
tion on the cont ainers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approva l(e.g. MB Approval 229.51)
Other designation sorrecommendations
relat etoal evel of qualit yoras pecification in
accordance wit hanMBSheet number (such
as MB 229.5). They hav enot necessaril ybeen
approved by Mercedes-Benz.
You can obtain further information from any
Mercedes-Benz Ser vice Centre. G
WARNING
Whe nhandling, storing and disposing of any
servic eproducts, please observe th erelevant
regulations, as you could otherwise endanger
yourself and others.
Keep servic eproducts awa yfrom children.
To protect your health ,donot allow service
products to com einto contact with your eyes
or ope nwounds. See adoctor immediately if
any service product is swallowed. H
Environmental note
Dispose of service products in an environ-
men tally-responsible manner. Service products and capacities
373Technicaldata Z

Fuel
Important safety notes G
WARNING
Fuel is highly flammable. Fire, naked flames
and smokin gare therefore prohibi tedw hen
handlin gfuels.
Swit choff th eenginea nd the auxiliary hea ting
before refuelling. G
WARNING
Do not come int ocontact with fu els.
It is hazardous to your healt hifyour skin
comes int odirect contact wit hfuels or you
breathe in fuel vapours.
Tank capacity Total capacity
32 Of whic
hreserv efuel !
Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with apetrol engine. Even small
amounts of the wron gfuel result in damage
to the fuel system and the engine.
Further information on refuelling and on fuels
(Y page 152).
Notes on fuel consumption The vehicle will use more fuel than usua
lin
the follow ings ituations:
R at very low outside temperatures
R in urban traffic
R on short journeys
R when towing atrailer
R in mountainou sterrain
i Only for certain countries: you can find
the curren tconsumption and emission val-
ues of your vehicle in the COC documents (EU CERTIFICATE OF CONFORMITY). These
documents ar
edelivered with your vehicle.
The consumption figures were in each case
based on the currently applicable version:
R for vehicles up to and including the EURO
4s tandard ,inaccordanc ewithEUD irec-
tive 80/1268/ECC
R for vehicles above the EURO 5standard,
in accordance with Regulatio n(EC) No.
715/2007
Deviations from these value smay occur
under normal operating conditions.
! Do not use any fuel additives, as they can
cause malfunctions and engine damage. H
Environmental note
CO 2(carbon dioxide) is the gas which scien-
tists believe to be principally responsibl efor
global warmin g(the greenhouse effect). Your
vehicle's CO 2emissions are directly related
to fuel consumptio nand therefore depend on:
R efficient use of the fuel by the engine
R driving style
R othe rnon-technical factors, such as envi-
ronmental influences or road conditions
You can minimise your vehicle' sCO
2emis-
sions by driving carefull yand having it serv-
iced regularly. AdBlue
®
Important safety notes i
For BlueTEC vehicles only.
AdBlue ®
is an on-flammable, non-toxic, col-
ourless, odourless and water-soluble fluid.
! Surfaces which have com einto contact
with AdBlue ®
whil erefilling should be
rinsed immediately with water ,orremove
AdBlue ®
with amoist clot hand cold water.
If AdBlue ®
has alread ycrystallised, us ea
sponge and cold water to clean the area.
32 Missing value swere not available at time of going to print. 374
Service products and capacitiesTechnical data

AdBlue
®
residue crystallises afte racertain
amount of time and soils the affecte dsur-
faces.
Hig houtside temperatures If AdBlue
®
is heate dtoabove 50 †for an
extended perio doftime,AdBlue ®
may start
to decom pose,e .g.d ue to direc tsunlight on
the AdBlue ®
tank. Ammonia vapour sdevelop
as aresult. G
WARNING
Ammonia vapours may escape if the
AdBlue ®
tan kcap is opened at high tempera-
tures. Ammonia vapours have apungent
odour and are particularly irritating to the
skin, to mucous membranes and to the eyes.
You may experienc eaburning sensation in
your eyes, nose and throat ,aswell as cough-
ing and waterin goftheeyes.
Do no tinhale ammoni avapours.
Lo wo utside temperatures AdBlue
®
freezes at atemperatur eofapp rox-
imatel y–11 †. Th evehicle is equip pedw ith
an AdBlue ®
preheating system at the factory.
Winter operatio ncan thus be guaranteed
even at temperatures below –11 †.
Additives !
Only use AdBlue ®
in accordan cewit hISO
22241. Do not us eadditives wit hAdBlue ®
an ddon ot dilute AdBlue ®
with water. This
may destroy th eBlueTEC exhaust gas after-
treatmen tsystem.
Purity Assuring the purity of AdBlue
®
is particularly
important with respect to avoiding malfunc-
tions in the exhaus tgas aftertreatment sys-
tem.
If AdBlue ®
is pumped out of the AdBlue ®
tank,
e.g. during repair work, do not use this fluid to refill the tank
.The purity of the fluid can no
longer be guaranteed.
! Impuritie sinAdBlue ®
(e.g. due to other
service products, cleaning agents or dust)
lead to:
R increased emission values
R damage to the catalytic converter
R engine damage
R ®
exhaust
Tota lcapacity of the AdBlue ®
tank Model Total
capacity 27.5 l
Engine oil
Th
eq uality of engine oils is decisive for the
function and service life of an engine. After
extensive tests, Mercedes-Benz approves
engine oils that correspond to the current
technical standard.
Therefore, only Mercedes-Benz approved
engine oils may be used in Mercedes-Benz
engines.
Further information on tested and approved
engine oils can be obtained from any
Mercedes-Benz Service Centre. Mercedes-
Benz recommends that you have the oil
change carried out at aMercedes-Benz
Ser vice Centre. Mercedes-Ben zapproval is
indicated on the oil container by the inscrip-
tion "MB Approval" and the cor respondi ng
designation, e.g. MB Approval 22 9.51.
Th et able shows which engine oils have been
approved for your vehicle. Petrol engines MB Approval
M3
50 4MATIC 22
9.3, 229.5 Servic
eproducts and capacities
375Technicaldata Z
malfunctions in the BlueTEC
gas aftertreatment system
ML 250 BlueTEC 4MATIC
Please bear the following in mind ML
350 BlueTEC 4MATIC