2011 MERCEDES-BENZ M-CLASS SUV low oil pressure

R
paraffin
R kerosene
Do not mix these fuels with diesel fuels and
do not use any special additives. Other-
wise, this can lead to damage to the engine.
This excludes flow improver ;see "Low out-
side temperatures".
! Use afilter when adding fuel from afuel
can. Otherwise, the fuel lines and/or the
diesel injection system could be blocked by
particles from the fuel can.
For further information on "Fuel", see
(Y page 374).
Low outsid etemperatures Diesel fuel with improved cold flow qualities
is available during the winter months. In
Europe, various climate-dependent low-tem-
peratur eclasses are defined in EN 590 .Refu-
elling with diesel fuel which complies with the
climatic specification sofstandard EN 590
can hel ptoprevent operatin gproblems. At
exceptionall ylow tempera tures, it is possible
that the flow properties of the fuel ma ybe
inadequate. This also applies to fuel that has
not been adapted to suit the climatic condi-
tions, e.g. diesel fuel from warmer regions.
i Further information about country-spe-
cific fuel properties can be obtained from
oil companies, e.g. at filling stations.
Flow improver Flow improvers can be added to improv
ethe
cold resistan ceof diesel fuel. The effective-
ness of aflow improver is not guaranteed with
every diesel fuel.
Correc tdosage and thorough mixing ar edeci-
sive factor sinensuring improvement in low-
temperature resistance. Avoid excessive dos-
age .Exce ssiv edosage ma yactuall ydecrease
low-temperature resistanc eunder certain cir-
cumstances. Follo wthe manufacturer's dos-
ing inst ructions. Mix the additive with the diese
ling ood time,
befor ethe flo wproperties of th ediesel
become inadequate. Malfunction scan other-
wise only be rectified by heating the entire
fuel system, e.g. by parking the vehicle in a
heated garage.
Observe the information provided by the man-
ufacturer when using aflow improver. Only
use flow improvers that have been tested and
approved by Mercedes-Benz. You can obtain
further information from any Mercedes-Benz
Servic eCentre. Refuelling
Fuel filler flap The fuel filler fla
pisunlocke dorlockedauto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
in the instrument cluster 8.The arrow
nex ttot he filling pum pindicate sthe side of
the vehicle. :
To open the fuel filler flap
; To inser tthe fuel filler cap
= Fue ltype
? Tyre pressure table
Opening X
Switch off the engine.
X Remove the key from the ignitio nlock. 154
RefuellingDriving and parking

safety reasons, get out of the vehicle first
and survey the off-road route.
R chec kthe depth of water before fording
river sand streams.
R loo kout for obstacle ssuch as rocks, holes,
tree stumps and furrows.
R take care when turning on an uphil lor
downhill slope and when turning at sharp
angles. The vehicle could otherwise tip
over.
R always keep the side windows and the pan-
oram asliding sunroof closed during the
journey.
R do not stray from marked routes or paths.
i Information abou tretrofitting special all-
ter rain tyres is available from any
Mercedes-Benz Service Centre. H
Environmental note
Protection of the environmen tisofprimary
importance .Trea tnature with respect.
Observe all prohibiting signs.
Checklist before drivin goff-road X
Engine oi llevel: checkthe engin eoil and
top it up if necessary.
When drivin gonsteep gradients, the oil
level must be sufficiently hig htoensure a
correct oil supply in the vehicle.
X AdBlue ®
tank (BlueTEC vehicl es):check
the fluid leve land, if necessary, refill to the
maximum (13 l) (Y page157).
X Tyre-chang etool kit: check that the jack
is working and make sure you have the
wheelbrace, arobust tow cabl eand afold-
ing spade in the vehicle.
X Wheels and tyres: checkthe tyr etread
depth and tyre pressure.
X Check for damag eand remove any foreign
objects, e.g. small stones, from the
wheels/tyres.
X Repl acea ny missing valve caps. X
Repl aced ented or damaged wheels.
X Wheels: dented or bent wheels can lead to
al oss of tyr epressure and damag etot he
tyr eb ead. Before driving off-road, check
the wheels and replace them if necessary.
Checklist after driving off-road !
If you detect damage to the vehicle after
driving off-road, have the vehicle checked
immediately at aqualified specialist work-
shop.
Driving over rough terrain places greater
demands on your vehicle than driving on nor-
mal roads. After driving off-road, check the
vehicle. This allow syou to detec tdamage
promptly and reduce the risk of an accident
to yourself and other road users.
X Vehicles with the ON&OFFROAD pack-
age: activate the on-road program
(Y page 222).
X Vehicles without the ON&OFFROAD
package: deactivate the on-road program
(Y page 222).
X Deactivate the LOW RANGE off-road gear
(Y page 223).
X Deactivate DSR (Y page 220).
X Lower the vehicle level again to alevel suit-
able to the road conditions, e.g. to the high-
way/high-speed level.
X Clean the headlamps and rear lights and
check for damage.
X Clean the front and rear licence plates.
X Clean the wheels/tyres with awater jet and
remove any foreign objects.
X Clea nthe wheels, wheel arches and the
vehicle underside with awater jet; check
for any foreign objects and damage.
X Check whethe rtwigs or other parts of
plants have become trapped. These
increase the risk of fire and can damage
fuel pipes, brake hose sorthe rubber bel-
lows of the axl ejoint sand propeller shafts.
X After the trip, examine without fail the
entire undercarriage, wheels ,tyres, brakes, Driving tips
167Drivingand park ing Z

Examp
le:e ngine oi lcap
X Turn cap :anti-clockwise and remove it.
X Top up the engine oil.
If the oi llev el is at or belo wthe MIN mark
on the dipstick ,top up with
0. 5to1 .0 litres of engine oil.
X Replace cap :on the fille rneck and turn
clockwise.
Make sure that the cap locks into place
securely.
X Check the oil level agai nwith the oil dip-
stick (Y page 320).
Further information on engine oil
(Y page 375). Checking and adding other service
products
Checking the coolant level Only check the coolant level when the vehicle
is on alevel surface and the engine has cooled
down.
X Turn the key to position 2(Y page 139) in
the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twic e(Ypage 139).
X Check the coolant temperatur egauge in
the multifunction displ ay.G
WARNING
Th ec ooling system is pressurised. Therefore,
only unscrew the cap once the engin ehas
cooled down. The coolant temperature gauge must display less than 70
†.Otherwi se,you
could be scalded if ho tcoolant escapes. X
Slowl yturn cap :half aturna nti-clock-
wis eand allo wexcess pressure to escape.
X Turn cap :further anti-clockwis eand
remove it.
If the coolant is at the level of markerbar
= in the filler nec kwhen cold ,ther eis
enough coolan tincoolant expansion
tank ;.
If the coolant leve lisapproximately 1.5 cm
above marker bar =in the filler nec kwhen
warm, ther eisenoughcoolant in coolant
expansion tank ;.
X If necessary ,top up with coolant that has
been tested and approved by Mercedes-
Ben z.
X Replace cap :and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 377).
Windscreen washer system and head-
lamp cleanin gsystem Th
ew asher fluid reservoir is used for both the
windscreen washe rsystem and the headlamp
cleaning system.
i Components and service products must
be matched. Mercedes-Benz recommends
that you use products teste dand approved
by Mercedes-Be nz.T hey ar elisted in this
Mercedes-Ben zOwner's Manual in the
appropriat esection. Engine compartment
321Maintenance andcare Z

X
Use clear wate rand asoft clot htoclean
camera lens :.
! Do not clean the camera lens and the area
around the reversing camera with ahigh-
pressure cleaner.
Cleaning the trailer tow hitch The ball coupling must be cleaned if it
becomes dirty or corroded.
X Remove rust on the ball of the ball coupling,
e.g. with awire brush.
X Remove dirt with aclean, lint-free cloth or
ab rush.
! Do not clean th eball coupling with ahigh-
pressure cleaner .Donot use solvents. X
Afterc leaning, lightly oil or grease ball cou-
pling :.
X Check that the vehicle' strailer to whitch is
working properly.
! Observe the note on care provided by the
trailer manufacturer.
i You can also have the maintenance work
on the ball coupling and the trailer tow hitch
carried out by aqualified special istw ork-
shop. H
Environmenta
lnote
Dispose of oily and greasy cloths in an envi-
ronmentally-responsible manner. Interior care
Cleaning the display X
Before cleaning the display, make sure that
it is switched off and has cooled down.
X Clea nthe display surface usin gacommer-
cially-available microfibr ecloth and TFT/
LCD displa ycleaner.
X Dry the displa ysurface using adry micro-
fibre cloth.
! For cleaning, do not us eany of the fol-
lowing:
R alcohol-base dthinner or petrol
R abrasiv ecleaning agents
R commercially-available household clean-
ing agents
These may damage the displa ysurface. Do
not put pressure on the displa ysurface
when cleaning. This could lead to irrepara-
ble damage to the display.
Cleanin gNight View Assist Plus !
Never clean the camera lens. When clean-
ing the field of vision of the driving systems,
mak esure that you do not spray glass
cleaner on the camera lens. If the camera
lens is dirty, visit aqualified specialist work-
shop. X
Fold down the camera cover by recess :.328
CareMaintenance and care

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