2011 MERCEDES-BENZ M-CLASS SUV check engine

Coolant (engine)
Checkin gthe level ......................... 321
Display message ............................ 266
Note s............................................. 377
Temperat ureg auge ........................ 234
Warning lamp ................................. 291
Cooling
see Climate control
Cornerin glight function
Display message ............................ 262
Function/notes ............................. 109
Crash-respon siveemergency light-
ing ...................................................... .112
Crui secontrol
Activating ....................................... 171
Activation conditions .....................171
Cruis econtrol lever ....................... 170
Deactivating ................................... 172
Display message ............................ 277
Driving sy stem ............................... 170
Important safety notes ..................170
LIM ind icator lamp ......................... 170
Sel ecting ........................................ 170
Setting aspeed .............................. 171
Cup holder
Centr econsole .............................. 307
Important safety notes ..................306
Rea rcompartmen t......................... 307
Temperat urec ontrolled ................. 307 D
Dashboard seeC ockp it
Data
see Technical data
Daytime drivin glights
Display message ............................ 264
Switch ingo n/off (on-board com-
puter) ............................................. 247
Switch ingo n/off (switch) ..............107
Delaye dswitch -off
Exterior lighting (on -boar dcom-
puter )............................................. 248
Interior lighting .............................. 249
Dies el................................................. .153
Dies elparticl efilter .......................... 162
Differential loc k(display message) .270 Digital spe
edometer ......................... 239
Dipped-beam headlamps Changing bulbs .............................. 114
Display message ............................ 262
Setting for driving abroad (s ym-
metrical) ........................................ 106
Setting for driving on the rig ht/
left ................................................. 247
Switch ingo n/off ........................... 107
DIRECT SE LECT lever
se eA utomatic transmission
Displa y(cleaning instr uctions) ........ 328
Display message Gen eral information ....................... 253
Hid ing( on-board computer) ...........253
KEYLESS-GO .................................. 282
Display messages
ASSYST PLUS service interva ldis-
pla y................................................ 322
Calling up (on-bo ardc omputer )..... 253
Driving sy stems ............................. 269
Engine ............................................ 266
Key ................................................ 282
Lig hts. ............................................ 262
Safety sy stems .............................. 254
Tyres .............................................. 277
Veh icle ........................................... 280
Distance display (on-board com-
puter) ................................................. .245
Distan cerecorder
see Trip meter
Distanc ewarning si gnal (warning
lamp) .................................................. 293
DISTRONI CPLUS
Activating ....................................... 176
Activation conditions .....................176
Cruis econtrol lever ....................... 176
Deactivating ................................... 180
Display message ............................ 275
Display sinthe multifunction dis-
play ................................................ 177
Driving tips .................................... 181
Function/notes .....................174, 175
Important safety notes ..................174
Sel ecting ........................................ 176
Setting the specified minimum
distance ......................................... 180
Warn ingl am p................................. 293 8
Index

Off-road driving .............................. 166
Off- roadfording ............................. 164
Running-i ntips ............................... 138
Sno wchains .................................. 358
Symmetrical di pped bea m............. 106
To wing atrailer .............................. 226
Travelling uphill .............................. 168
Tyr egrip ........................................ 164
Tyr eruts ........................................ 168
We troad surf ace. .......................... 163
DSR (Downhi llSpeed Regulation)
Display message ............................ 271
Function/notes ............................. 220
DVD audio (on-b oard computer) ......242 E
EASY- ENTRY feature
Activating/deactivating .................251
Function/notes ................................ 99
EASY- EXIT feature
Crash-responsive ........................... 100
Function/notes ................................ 99
Switch ingo n/off ........................... 251
EASY- PACK load-securing kit ........... 303
EBD (electronic brake force distri-
buti on)
Disp laym essage ............................ 256
Function/notes ................................ 65
EC Os tart/stop function
Deactivating/activating .................143
Gen eral information ....................... 142
Electri calfuses
se eF uses
Electroni cbrake force distribution
see EBD (electronic brake force
distribution)
Electroni cStability Program
see ESP ®
(Electroni cStability Program)
Electronic Tracti onSystem
se e4 ETS (Electroni cTracti onSystem)
Emergenc ykey
Unlocking the driver's door ..............79
Emergency key element
Function/notes ................................ 74
Locking veh icle ................................ 79
Emergency rel ease
Driver's door .................................... 79Emergency spar
ewheel
Notes/d ata. ................................... 366
Storage locatio n............................ 334
Emergency unl ocking
Ta ilgate ............................................ 82
Veh icle ............................................ .79
Engine
Display message ............................ 266
ECO start/stop function ................142
Emergency starting ........................352
Engine numb er............................... 373
Running irregularl y......................... 144
Starting pro blems .......................... 144
Starting the engine wit hthe key ....140
Starting with KEYLESS GO .............140
Stopp ing. ....................................... 160
Warn ingl am p(engine diagnos-
tics) ............................................... 290
En gine electronics
Notes ............................................. 371
Problem (fault) ............................... 144
En gine oil
Additives ........................................ 376
Checking the oil level ...... ............... 320
Checking the oil leve lusing the
dipstick .......................................... 320
Display message ............................ 267
Fil ling capacity ............................... 376
Note sabout oil grades ...... ............. 375
Notes on oil level/cons umption.... 320
Topping up ..................................... 320
Viscosity ........................................ 376
En vironmental protection
Note ................................................ .22
Retur ningan end-of-life vehicl e....... 22
ESP ®
(Electronic Stability Pro-
gram) 4ETS ................................................ 64
Deactivating/activating ...................64
Display message ............................ 254
Function/notes ................................ 63
Important safety gu idelines ............. 63
Traile rstabilisatio n.......................... 65
Warn ingl am p................................. 288
Exterior lighting
seeL ights 10
Index

G
WARNING
Modifications to or work performe dincor-
rectly on the following parts can result in the
restraint systems not functioning as intended:
R the restraint system, consisting of seat
belts and thei ranchorage points, bel tten-
sioners, belt for celimiter sand airbags
R the wiring
R networked electronic systems
Airbags and belt tensioners could fail to
deploy or be trigge redinana ccident despite
the deceleration force being sufficient to trig-
ger the systems, or could be triggered unin-
tentionally. For this reason, never make any
modifications to the restrain tsystems.
Therefore, you must not tamper with elec-
tronic components or their software. SRS (Supplemen
talRestraint System)
Introduction SRS consists of:
R
the 6 SRS warning lamp
R airbags
R airba gcontrol unit (with crash sensors)
R belt tensioner sfor the front seat belts and
the outer seat belts in the rear
R belt force limiters
SRS reduces the risk of occupan ts coming
into contact with the vehicle's interio rinthe
even tofana ccident. It can als oreduce the
effect of the forces to which occupant sare
subjected during an accident.
SRS warnin glamp SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore ,malfunctions
can be detected in good time.
The 6 SRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than afew seconds
after the engine is star ted. G
WARNING
If SRS is malfunctioning, individual systems
may be activated unintentionally or may not
be triggered in the even tofanaccident with
ah igh rate of vehicle deceleration.
Am alfunction has occurred if:
R the 6 SRS warning lamp does not light
up when the ignition is switched on.
R the engine is runnin gand the 6SRS
warning lamp doe snot go out after afew
seconds.
R the engine is runnin gand the 6SRS
warning lamp lights up again.
In this case, have SRS checked immediately
at aq ualified specialist workshop .Mercedes-
Benz recommends that you use aMercedes-
Benz Servic eCentr efor this purpose.
In particular ,work relevant to safet yoron
safety-related systems must be carried out at
aq ualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags During the first stage of
acollision ,the airbag
con trol unit evaluates important physical
data relatin gtovehicle deceleration or accel-
eration, such as:
R duration
R direction
R magnitude
Based on the evaluation of this data, the air-
bag control unit pre-emptively triggers the
belt tensioner sinthe first stage.
i The front belt tensioner scan only be trig-
gered if the seat belt tongues on the front
seats are correctly engaged in the seat belt
buckles.
If there is an even higher rate of vehicle decel-
eration or acceleration in alongitudinal direc-
tion ,the front airbags ar ealso deployed.
Your vehicle has adaptive, two-stage front air-
bags. The airbag control unit evaluates vehi-
cle deceleration or acceleration in the event Occupant safety
41Safety Z

The radar sensor system must be switched off
using the on-boar dcomputer in the vicinit yof
radio telescop efacilities in the following vehi-
cles:
R vehicles without COMAND Online and nav-
igation
R vehicles without Audio 20 and Becker ®
MAP PILOT
R vehicles for Australia
Information about switching off the rad ar sen-
so rs ystem using the on-board computer can
be found in the "On-board computer and dis-
plays “section (Y page 249).
For PRE- SAFE®
Brake to assist you whe ndriv-
ing ,the radar sensor system must be
switc hed on (Y page 249) an dbeopera-
tional.
Followin gdamage to the fron tend of the vehi-
cle ,havet he configuration and operation of
the radar sensors checked at aqualified spe-
cialist workshop. This also applie stoc olli-
sions at slow speeds where ther eisnovisible
damage to the fron tofthe vehicle. STEE
RCONTROL
The steering assistan tSTEE RCONTROL helps
you by transmittin ganoticeable steering
force to the steering wheel in the direction
required for vehicle stabilisation.
This steering assistance is provided in partic-
ular if:
R both right wheels or both left wheels ar eon
aw et or slippery road surface when you
brake
R the vehicle starts to skid
You have control over the steerin gatall
times. G
WARNING
If there is an ESP ®
malfunction, you will not
receiv eany steering assistance from the
STEER CONTROL. The steering continues to
function with steering assistance. Anti-theft systems
Immobiliser
The immobilise rprevents your vehicl efrom
being starte dwithout the correct key.
X To activate with the key: removethe key
from the ignition lock.
X To activate wit hKEYLESS-GO: switch the
ignition off and open the driver' sdoor.
X To deactivate: switchont he ignition.
i The immobiliser is always deactivated
when you star tthe engine. ATA (Anti-Thef
tAlarm system)
Av isual and audible alarm is triggered if the
alarm system is prime dand you ope n:
R ad oor
R the vehicle with the emergency key ele-
ment
R the tailgate
R the bonnet
The alar misnot switched off ,even if you
close th eopen door that has triggere dit, for
example. X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes. The alarm sys-
tem is primed after approximately 15 sec-
onds.
X To deactivate: unlock the vehicle with the
key or KEYL ESS-GO.68
Anti-thef
tsystemsSafety

signa
lcan be activated and deactivated using
the on-board computer (Y page 249).
X To unlock centrally: press the%but-
ton.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
R the vehicle is locked again.
R the anti-theft system is primed again.
X To lock centrally: press the&button. KEYLESS-GO
You can start, lock or unlock the vehicle using
KEYLE SS-GO. To do this ,you only need carry
the key with you. When you touc hthe surface
of the sensor sonthe vehicle' soutside door
handles ,KEYLESS-GO establishes aradio
connection between the vehicle and the key.
When the engine is started and whils tyou are
driving, KEYLE SS-GO also checks whether a
valid key is in the vehicl ebyperiodically
establishing radi ocontact.
When locking or unlockin gwith KEYLESS-GO,
the distance between the key and the door
handle you wish to lock or unlock must not
be greater than 1m. X
To unlock the vehicle: touch the inner
surface of the doo rhandle.
X To lock the vehicle: touch sensorsur-
face :.
X Convenienc eclosing feature: touch
recessed sensor surface ;for an exten-
ded period (Y page 85). If you pull on the handle of the tailgate, only
the luggage compartmen
tofthe vehicle is
unlocked. Changing th
esettings of the locking
system
You can change the setting of the locking
system in such away that only the driver's
door and the fuel filler flap are unlocked. This
is useful if you frequently travel on your own.
X To change the setting: press and hold
down the %and& buttons simulta-
neously for approximately six seconds until
the battery check lamp (Y page 74)
flashes twice.
i If the setting of the locking system is
changed within the signal range of the vehi-
cle, pressing the &or% button locks
or unlocks the vehicle.
The key now function sasfollows:
X To unlock th edriver's door: press the
% button once.
X To unlock centrally: press the%but-
ton twice.
X To lock centrally: press the&button.
The KEYLESS-GO function is change dasfol-
lows:
X To unlock th edriver's door: touch the
inner surface of the doo rhandle on the
driver' sdoor.
X To unlock centrally: touchthe inner sur-
face of the door handl eonthe front-
passenger door or the rea rdoor.
X To lock centrally: touchthe outer sensor
surface on one of the door handles. Restoring th
efactory settings
X Press the %and& button ssimulta-
neously for approximately six seconds until
the battery check lamp flashes twice. Key
73Opening and closing Z

Problem Possible causes/consequences and
M Solutions
The engin
ecannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting ,and try to start the engine again.
If this doe snot work:
X Check the starter battery and charge it if necessary
(Y page 343).
or
X Jump-start the vehicle (Y page 348).
or
X Consult aqualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. Ad
oor is open. Therefore, the key can notb ed etected as easily.
X Close the door and tr ytostart the vehicle again. There is interferenc
efrom apowerfu lsource of radio waves.
X Start your vehicle with the key in the ignition lock. Doors
Important safety notes
G
WARNING
Only fo rthe Unite dKingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock func tion is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leav eany people behind in
the vehicle, particularly children, elderly peo-
ple or people requiring special assistance .As
ar esult, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally injured by
prolonged exposur etoextremely hig horlow
tempera tures, for example. In this case ,res-
cuin gpeople from outside the vehicle is diffi-
cult.
Deac tivate the interior motion sensor before
you lock the vehicle .The doors can then be
opened from the insid eafter the vehicl ehas
been locked from the outside. G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open adoor from inside the vehicle at any
time, even if it has been locked
R star tthe vehicle usin gakey which has been
left in the vehicle
R release the electric parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Alway stake the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. Unlocking and opening th
edoors
from the inside
For all countries except the United King-
dom: you can open adoor from inside the
vehicle even if it has been locked.
Only for th eUnited Kingdom: if the vehicle
has been locked with the key or with KEY-
LE SS-G O, the doubl elock function is activa-
ted as standard. It is then not possible to open Doors
77Opening and closing Z

Changing bulbs
Important safety notes
Xenon bulbs If your vehicle is equipped wit
hxenon bulb s,
you ca nrecognise this by th efollowing: the
cone of light from th exenon bulbs moves
from th etop to the bottomand back again
whe nyou star tthe engine. Fo rthis to be
observed ,the lights must be switched on
before startin gthe engine. G
DANGER
Xenon bulb scarry ahigh voltage. You could
get an electric shock and be seriously or even
fatally injured if you touch the electric con-
tacts on xenon bulbs. Therefore, never
remov ethe cover from xenon bulbs.
Do not change xenon bulbs yourself, but have
them replaced at aqualified specialist work-
sho pwhich has the necessar yspecialist
knowledge and tools to carry out the work
required.
Mercedes-Ben zrecom mends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at aq ualified specialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that thes efunction correctly at all times.
Have the headlamp setting checked regularly.
Other bulbs There are bulbs other than the xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Y page 113). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
Mercedes -Benz recommends that you use a
Mercedes-Benz Ser vice Centre for thi spur-
pose .Inp articular, work relevant to safety or
on safety-related systems must be carried out
at aq ualified specialist workshop. If you require assistanc
echangi ngbulbs, con-
sult aqualified specialist workshop.
Do not touch the glass tube of new bulbs with
your bare hands. Even minor contamination
can burn into the glass surface and reduce
the servic elife of the bulbs. Always use alint-
free cloth or only touch the base of the bulb
when fitting.
Only use bulbs of the correct type.
If the new bulb still does not light up, consult
aq ualified specialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly. G
WARNING
Bulbs and lights can become very hot. For this
reason, allow them to cool down before
changin gthem. Otherwise, you coul dburn
yourself when you touch them.
Keep bulbs out of the reach of children. Oth-
er wise ,they could damage them, for example,
and inj uret hemselves.
Never use abulbw hich ha sbeend ropped.
Suc hab ulbm ay explod eand injure you.
Halogen bulb sare pressu rised and could
explode when yo uchange them, especiall yif
the yarever yhot. Yo ushould therefor ewear
eye protec tion and gloves when you are
changing them. Overview of bulb replacement
–bulbs
Yo uc an replace the following bulbs. The
details for the bul btype can be found in the
legend. Changing bulbs
113Lightsand windsc reenwipers Z

Fitting th
ewiper blades
X Positio nthe new wiper blade in the retainer
on the wiper ar mand slide it into place in
the opposite direction to the arrow.
The wipe rblade audibly engages.
X Make sure that wiper blade is seated cor-
rectly.
X Fold the wiper arm back onto the wind-
screen.
Replacing the rear window wiper blade Removing the wiper blade
G
WARNING
The wiper arm could be set in motion and
injur eyou if the windscreen wiper sare
switched on.
Remove th ekey from the ignition lock before
replacing the wiper blade. X
Remov ethe key from the ignition lock.
X Fold wiper arm :away from the rea rwin-
dow until it engages.
X Position wiper blade ;atar ight angle to
wiper arm :.
X Hold wiper arm :and press wiper
blade ;in the direction of the arrow until
it releases.
X Remove wiper blade ;. Fitting the wiper blade
X
Place new wiper blade ;onto wiper
arm :.
X Hold wiper arm :and press wiper
blade ;in the opposite direction to the
arrow until it engages.
X Make sure that wiper blade ;is seated
correctly.
X Position wiper blade ;parallel to wiper
arm :.
X Fold wiper arm :back onto the rear win-
dow. Problems with the windscreen wipers
The windscreen wipers are obstructed Leaves or snow, for example, may be
obstructing the windscreen wiper movement.
The wiper motor has been deactivated.
X
For safety reasons, you should remov ethe
key from the ignition lock.
or
X Switc hoff th eengine using the Start/Stop
butto nand ope nthe driver's door.
X Remove the cause of the obstruction.
X Switc hthe windscreen wiper sback on.
The windscreen wipers are inoperative The windscreen wiper drive is malfunctioning.
X
Select another wiper spee donthe combi-
nation switch.
X Hav ethe windscreen wiper schecked at a
qualified specialist workshop.
Th es pra ynozzles are misaligned The windscreen washer fluid from the spray
nozzles no longer hits the centre of the wind-
screen. The spray nozzles are misaligned.
X Have the spray nozzles adjusted at aquali-
fied specialist workshop. 118
Windscreen wipersLights and windscreen wipers