2011 MERCEDES-BENZ M-CLASS SUV key battery

BAS PLUS (Brake Assist System
PLUS) .................................................... 62
Battery (key) Checking .......................................... 74
Important safety notes ....................74
Replacing ......................................... 75
Battery (v ehicle)
Charging ........................................ 347
Connectin g.................................... 346
Disconnecting ................................ 346
Display message ............................ 267
Important safety notes ..................343
Jump starting ................................. 348
Location ......................................... 344
Removing/fittin g........................... 346
Belt
seeS eat belt
Belt force limiters (activation) ...........41
Bel ttensioner
Activation ......................................... 41
Function .......................................... .49
Blind Spo tAssist
Activating/deactiva ting ................. 245
Display message ............................ 274
Notes/function .............................. 208
Traile rtowing ................................. 210
se eA ctive Blind Spo tAssist
BlueTEC
Topping up AdBlue ®
...... ................. 157
BlueTE C(AdBlue ®
) ............................. 374
Bon net
Active bonne t(pedestrian protec-
tion) ............................................... 318
Closing ........................................... 319
Display message ............................ 281
Opening ......................................... 318
Boot
seeT ailgate
Brak eAssist System
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 259
Note s............................................. 376
Brake lamps
Ada ptive .......................................... .63
Changin gbulbs .............................. 116
Display message ............................ 263Brakes
ABS .................................................. 61
BAS .................................................. 62
BAS PLUS ........................................ 62
Brake fluid (notes )......................... 376
Display message ............................ 254
Driving tip s.................................... 162
Important safety notes ..................162
Warn ingl am p................................. 285
Breakdown
seeF lat tyre
see Towing away
Bulbs
see Changing bulbs C
Callin gupaf ault
se eD isplay messages
Capacities
see Technical data
Car
see Vehicle
Care
Automatic car was h....................... 324
Carpets .......................................... 330
Display ........................................... 328
Exterio rlighting ............................. 327
Gea rors electo rlever .................... 329
High-pressure cle aner ...... .............. 325
Matt paintwork .............................. 326
Nig htVie wA ssist Plus ................... 328
Note s............................................. 324
Pa int. ............................................. 326
Pl ast ic trim .................................... 329
Revers ingc amera .......................... 327
Roo flining ...................................... 330
Seat bel t........................................ 330
Sea tcover ..................................... 329
Sensors ......................................... 327
Steering wh eel............................... 329
Tri mp ieces .................................... 329
Washing by hand ........................... 325
Wheels ........................................... 325
Windows ........................................ 326
Wi perb lades .................................. 327
Wooden trim .................................. 3296
Index

Headlamps
Misting up ...................................... 111
Topping up the cle aning system ....321
se eA utomati cheadlamp mode
Hea drestraints
Adjusting ......................................... 94
Adjusting (e lectrically )..................... 95
Adjusting (manually )........................ 94
Adjusting (re ar)................................ 95
Fitting/removing (re ar).................... 96
Heati ng
se eC limate control
High-pressure clean ers.................... 325
Hill star tassist .................................. 141
HOLD function Display message ............................ 272
Function/notes ............................. 187I
Immobili ser.......................................... 68
Ind icator and warn ingl amps
Co olan t.......................................... 291
DISTRONI CPLUS ........................... 293
Engine di agnostics ......................... 290
Fue ltank ........................................ 291
Indicator lamps
Display message ............................ 263
se eW arning and indicator lamps
Indicators
see Turn signals
Insec tprotection on the radiator ....320
Instrument cluster Overview .......................................... 30
Setting s......................................... 246
Warn inga nd indicator lamps ...........32
Instrument cluste rlighting ................ 30
Instrument li ghting
see Instrument cluster lighting
Intelligen tLight System
Activating/deactivatin g................. 247
Display message ............................ 264
Setting the di pped-beam head-
lamps for driving on the right/left .247
Int erior lighting ................................. 112
Automatic control sy stem .............. 112
Del ayed swit ch-off (on-bo ard
computer) ...................................... 249Emergency lighting
........................112
Manual control ............................... 112
Overview ........................................ 112
Reading lamp ................................. 112
Setting the ambient lighting
bri ghtness (on-bo ardc omputer ).... 248
Setting the ambient lighting col-
ou r(on-board computer) ...... .......... 248
Interior motio nsensor ........................ 69
IS OFIX child seat securing system ....53 J
Jack Storage locatio n............................ 333
Using ............................................. 339
Jump startin g(engine) ...................... 348 K
Key Changing the battery ....................... 75
Ch ecking the battery ....................... 74
Convenience closing feat ure. ........... 84
Convenience opening feat ure. ......... 84
Display message ............................ 282
Doo rcentral locking/unlocking .......72
Emergency key el ement ...... ............. 74
Loss ................................................. 76
Modifying the programming .............73
Positions (i gnition lock) ................. 139
Pro blem (malfunction) ..................... 76
Starting the engine ........................140
KEYLES S-GO
Convenience closing ........................85
Display message ............................ 282
Locking ............................................ 73
Start/Sto pbutton ...... .................... 139
Starting the engine ........................140
Unlockin g......................................... 73
Ke yp ositions
Key ................................................ 139
KEYLESS GO .................................. 139
Kickdown
Driving tip s.................................... 148
Manual drive program ....................151
Kneebag ............................................... 4412
Index

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

Emergency key element
General notes If th
evehicle can no longer be unlocked with
th ek ey, us ethe emergency ke yelement.
If you use th eemergency key element to
unlock and open the dri ver'sd oor ,the anti-
theft alar msystem will be triggered
(Y page 68).
The reare several ways to tur noff th ealarm:
X To turn the alarm off with the key: press
the % or& buttonont he key.
or
X Insert the key int othe ignition lock.
or
X To deactivat ethe alarm with KEYLESS-
GO: press th eStart/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
Removing the emergency key element X
Pus hrelease catch :in the direction of
the arrow and at the same time, remove
emergency key element ;from the key. Key battery
Important safety notes Hav
ethe batteries changed at aqualified spe-
cialist workshop. G
WARNING
Batteries are toxic and contain caustic sub-
stances. For this reason, keep batteries out of
the reach of children.
If ab attery has been swallowed ,visi tad octor
immediately. H
Environmental note Bat
terie sc ontain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collec teds ep-
arately and disposed of in an
environmentally responsible
recycli ngsystem. Dispose of batt
eries in an
envi ronmentally responsible
manner. Take discharged
batteries to aqualified spe-
cialist workshop or to acol-
lection point for used batt er-
ie s.
Checking th ebattery X
Press the &or% button.
Th eb attery is workin gproperl yifthe bat-
ter yc hec klamp :lights up briefly
If battery chec klamp :does not light up
briefly during the test, the batter yisdis-
charged.
X Changing the battery (Y page 75)
i If the key battery is checked within the
signal reception range of the vehicle, press- 74
KeyOpening and closing

ing the
&or% button lock sor
unlocks the vehicle.
Changing th ebattery Yo
ur equir eaCR2 0253Vc ell battery.
X Take the emergency key elemen tout of the
key (Y page 74). X
Press emergenc ykey element ;intot he
opening in th ekey in the direction of the
arrow until battery tray cover :opens.
When doin gso, do no thold cover :shut.
X Remove battery tray cover :.X
Repeatedly tap the key against your palm
until battery =falls out.
X Insert the new battery with the positiv eter-
minal facing upwards. Use alint-free cloth
to do so.
X Make sure that the surface of the battery is
free from lint, grease and all other form sof
contamination.
X Insert the front tabs of battery tray
cover :and the npresstoc lose it. X
Insert the emergenc ykey elemen tinto the
key.
X Check the function of all key butto nson the
vehicle. Key
75Opening and closing Z

Problems wit
hthe key Problem Possible causes/consequences and
M Solutions
Yo
uc annot lock or
unlock the vehicle
using the key. The key battery is discharged or nearly discharged.
X Try again to lock/unlock the vehicle using the remote control
function of the key. Point the tip of the key at the driver' sdoor
handl efrom close rang eand pres sthe % /& button.
If this does not work:
X Chec kthe key battery (Y page 74)and replace it if necessary
(Y pag e75).
X Lock (Y page79) or unlock (Y page79) the vehicl eusing
the emergenc ykey element. The key is faulty.
X Loc k(Ypage 79 )orunlock (Y page79) the vehicl eusing
the emergenc ykey element.
X Hav ethe key chec kedataq ualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. There is interference from
apowerfu lsource of radio waves.
X Lock/unloc kthe vehicle usin gthe remote con trol func tion of
the key. Point the tip of the key at the driver's door handl efrom
close rang eand pres sthe % /& button. There is
afault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver' sdoor handl efrom
close rang eand pres sthe % /& button.
X Hav eKEYLESS-GO checked at aqualified specialist workshop.
If this does not work:
X Check the key battery (Y page 74) and replace it if necessary
(Y page 75).
X Lock (Y page 79) or unlock (Y page 79) the vehicle using
the emergency key element. You have lost
akey. X
Hav ethe key deactivated at aqualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. 76
KeyOpenin
gand closing

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

i
If th ebattery voltage is too low, the seat
heating may switch off. Driver's and front-passenger seat
Rear-compartment seats
The system automaticall
yswitches down
from level 3to level 2after approximately
eight minutes.
The system automaticall yswitches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level 1.
X Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desire dheatin glevel is set.
X To switch off: press button:repeatedly
until all the indicator lam psgo out. Problems with th
eseat heating The seat heating has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumer sare switched
on.
X Switch off electrica lconsumers that you do
not need, such as the rea rwindow heating
or interior lighting. Switching the seat ventilation on/off
Activating/deactivating The three blu
eindicato rlamps in the buttons
indicate the ventilation level you have selec-
ted.
i If the battery voltage is too low, the seat
ventilation may switch off. X
Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desire dventilation level is set.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" featur e(Ypage 84). The seat ven-
tilation of the driver' sseat automatically
switches to the highest level.
X To switc hoff:press button :repeatedly
until all th eindicato rlamps go out. Seats
97Seats,steeri ngwheel and mirrors Z