2012 MERCEDES-BENZ M-Class belt

Assis
tance men u(on-boa rd
comp uter) .......................................... 232
ASS YST PLUS
see ASSYST PLUSserviceinterva l
dis pla y
ATA (Anti-Theft Alarm syste m)
Activating/d eactivating ................... 68
Function ...........................................68
Swi tching offthe alarm .................... 68
ATTENTIO NASSIST
Act ivating/deact ivating................. 232
Displ aymessa ge............................ 258
Function/notes ............................. 194
Audio menu(on-bo ardcomputer) ....229
Audio system
see sepa rateoperating instructio ns
Authori zedMerce des-Be nzCenter
see Qualified speci alist worksh op
AUTO lights
Displ aymessa ge............................ 253
see Ligh ts
Automatic headlampmode.............. 110
Automatic transmission
Cha nging gear............................... 146
DIRECT SELECT lever..................... 144
Displ aymessa ge............................ 265
Driving tips.................................... 147
Emergency runningmode.............. 149
Kickdow n....................................... 147
Prob lem(malfunction) ................... 149
Pul ling away ................................... 141
Shift range s................................... 147
Starting theengine ........................ 140
Steering wheelpad dleshifte rs...... 147
Trai lertowi ng................................. 147
Transmi ssionposition display ........145
Transm issionposi tions .................. 146
Automatic transmission
emerge ncymode ............................ ...149 B
Back
support
see Lumb arsup port
Backup lamp
Displ aymessa ge............................ 252
Bag hook............................................ 288Ball
couplin g
Install ing........................................ 214
Rem oving ....................................... 218
Storing ........................................... 218
BAS (Brake AssistSyste m)................. 61
Basic settings
see Settings
BAS PLUS(Brake AssistSyste m
PLU S).................................................... 62
Battery (SmartKe y)
Che cking .............. ............................ 76
Importa ntsafe tynotes .................... 75
Rep lacing ......................................... 76
Battery (vehicle)
Cha rging ........................................ 340
Displ aymessa ge............................ 256
Importa ntsafe tynotes .................. 338
Ju mp starting ................................. 341
Belt
see Seat belts
Blin dSpot Assist
Activa ting/d eactiva ting................. 232
Notes/fu nction.............................. 198
Trai lertowi ng................................. 200
see Active BlindSpotAssist
BlueTE C(D EF ).................................... 387
Brake AssistSyste m
see BAS (Brake AssistSystem)
Brake fluid
Displ aymessa ge............................ 244
Notes ............................................. 389
Brake fluidlevel................................ 316
Brake lamps
Cha nging bulbs.............................. 117
Displ aymessa ge............................ 251
Brakes
ABS .................................................. 61
BAS .................................................. 61
BAS PLUS ........................................ 62
Brake fluid(notes) ......................... 389
Displ aymessa ge............................ 239
Driving tips.................................... 159
Importa ntsafe tynotes .................. 159
Mai ntenance .................................. 160
Warni nglamp ....... ..................... ..... 271 In
dex
5

Break
down
see Flattire
see Towing away
Bu lbs
see Changin gbulbs C
Califor
nia
Impo rtant notice forretail
cust omer sand lesse es.................... 22
Call ingupamalfunc tion
see Displ aymessa ges
Capac ities
see Techni caldata
Car
see Vehi cle
Care
Carpets .......................................... 325
Ca rwa sh ....... .............. .............. ..... 318
Displ ay........................................... 323
Exterior lights ................................ 322
Gea rorselecto rlever .................... 324
Matte finish................................... 320
Nigh tView AssistPlus ................... 323
Notes ............................................. 318
Pai nt.............................................. 320
Pla stic trim .................................... 323
Pow erwa sher ................................ 319
Rea rview came ra.......................... 322
Roo flini ng ....... ............................ ...325
Seat belt........................................ 324
Seat cover ..................................... 324
Sensors ......................................... 322
Steering wheel............................... 324
Trim pieces .................................... 324
Was hing byhand ........................... 319
Whee ls........................................... 320
Windo ws........................................ 321
Wip erbla des .................................. 321
Wood entrim .................................. 324
Cargo compartm entcover ............... 289
Cargo compartm entenlargemen t... 287
Cargo compartm entfloor
Openi ng/closi ng............................ 292
Stowag ewell(under) ..................... 292Cargo
net
Attaching ....................................... 290
Importa ntsafe tyinforma tion......... 290
Cargo tiedow nrings ......................... 288
Car wash (care) ................................. 318
CD player/ CDchang er(on-bo ard
co mputer) .......................................... 230
Ce llphone
see Mobi lephone
Ce nter conso le
Lowe rsect ion .................................. 33
Uppe rsect ion .................................. 32
Ce ntral locking
Automa ticlocking (on-board
compu ter)...................................... 235
Locking/u nlocking(SmartKe y)........ 72
Chang ingbulb s
Brake lamps ................................... 117
High-b eamheadlamps ................... 116
Importa ntsafe tynotes .................. 114
Low-b eamheadlamps .................... 116
Overvi ewofbul btypes .................. 115
Parki nglamps ................................ 116
Rem oving/re placing thecover
(front wheelarch) .......................... 115
Side marker lamps ......................... 117
Standing lamps (front) ................... 116
Chi ld-proof locks
Importa ntsafe tynotes .................... 59
Rea rdoors ....................................... 59
Chi ldren
In the vehi cle................................... 54
Res traint systems ............................ 54
Chi ldseat
LATCH-typ e(ISOFIX) childsea t
anchors .................................... ...... .. 57
Specia lseat belt retractor ............... 56
Top Tether ....................................... 58
Ci garette lighter ................................ 296
Cl eani ng
Trai lertow hitch ............................. 322
Cli mate control
3-zone automatic climatecontrol ..126
Control lingautomatica lly............... 129
Coo ling with aird ehumidification ..128
Defrosting thewindows ................. 132
Defrosting thewindshi eld.............. 131 6
In
dex

Rear
compartment
Setting theairv ent s...................... 135
Setting thetempera ture................ 130
Rear foglamp
Displ aymessa ge............................ 252
Switchi ngon/off ........................... 110
Rear seat
Adjusting ......................................... 98
Rear viewcamera
Cl eani nginstructio ns..................... 322
Function/notes ............................. 190
Rear-vie wmirror
Anti-glar e(manua l)........................ 103
Dippi ng(automa tic)....................... 104
Rear window defros ter
Prob lem(malfunction) ................... 133
Rear window heatin g
Switchi ngon/off ........................... 132
Rear window wiper
Rep lacing thewiper blade ....... ....... 119
Switchi ngon/off ........................... 118
Refue ling
Fuel gauge....................................... 29
Importa ntsafe tynotes .................. 149
Ref ueling proces s.......................... 150
see Fuel
Remote control
Ga rage door opener ....................... 305
Reportin g
Mal functions relevant tosafe ty....... .25
Res erve (fueltank)
see Fuel
Res erve fuel
Disp laym essage ............................ 257
Warni nglamp ........................ 276,277
see Fuel
Resi dual heat (climate control) ........ 133
Restrain tsyste m
see SRS (Supplemental Restraint
System)
Roadsi deAss istanc e(bre akdow n).... 22
Roll ersunb lind
Panor amaroofwith pow ertilt/
sli ding pane l....... ..............................90
Roof carrie r........................................ 293
Roof lining and carpets (clean ing
guide lines) ......................................... 325Roof
load(maximum) ........................ 390
Route see Routegui dance (navigation)
Route guidan ce(nav igati on)............ 228 S
Safety
Childre nint he vehicle ..................... 54
Chi ldrestrai ntsys tems .................... 54
Occupa ntClass ifica tion System
(OC S)............................................... 44
Overvi ewofoccup antsafe ty
sys tems ........................................... 38
Safety systems
see Driving safetysys tems
Seat belts
Adjusting thedrive r'sand front-
pas senger seatbelt ......................... 52
Adjusting theheight ....... .............. ....52
Belt force limiters ............................ 53
Cl eani ng....... ....... ........................... 324
Corr ectusage.................................. 50
Emergency Tensioning Devices ........53
Faste ning......................................... 51
Importa ntsafe tygui del ines ............. 49
Rel eas ing ......................................... 53
Safety guidel ines ............................. 39
Specia lseat belt retractor ............... 56
Switchi ngbeltadju stment on/off
(on-boa rdcompu ter)...................... 237
Warni nglamp ....... ..................... ..... 269
Warni nglamp (function) ................... 53
Seats
Adjusting (electrical ly). .................... 96
Adjusting the4-way lumba r
sup port ............................................ 99
Adjusting theheadrestrai nt............ 97
Cl eani ngthe cover ......................... 324
Corr ectdrive r'ssea tposi tion ...........94
Fold ingthe rear bench seat
forwa rds/ba ck....... ..................... ...287
Importa ntsafe tynotes .................... 95
Seat heating prob lem.................... 100
Seat ventila tionprob lem................ 100
Storing settings (memory
function) ........................................ 105 In
dex
15

Vehi
cle dime nsions........................... 390
Vehic leemerge ncylocking ................ 80
Vehic leiden tification number
see VIN
Vehic leiden tification plate.............. 381
Vehic lelev el(dis play messag e)....... 258
Vehic letool kit.................................. 328
Video (DVD) ..................... ................... 230
VIN ...................................................... 381W
Warning
andindicator lamps
ABS ............................ .................. .. 272
Brakes ........................................... 271
Che ckEngine ................................. 276
Coo lant .......................................... 277
Distance warning ........................... 279
DISTRONI CPLUS ........................... 279
ESP ®
.............................................. 273
ESP ®
OFF .......................................274
Fuel tank ............................... 276,277
Overvi ew.......................................... 30
PASSENGER AIRBAG OFF
indi cator lamp .................................. 44
Res erve fuel....... ....... ............. 276,277
Seat belt........................................ 269
SRS ............................ .................... 275
Tire press uremonitor .................... 280
Warranty ............................................ 381
Washer fluid
Displ aymessa ge............................ 267
see Winds hieldwa sher system
Whee lbol ttight ening torque ........... 337
Whee lcho ck...................................... 334
Whee ls
Cha nging awheel .......................... 333
Che cking ........................................ 351
Cl eani ng....... ....... ..................... ...... 320
Importa ntsafe tynotes .................. 350
Interchangi ng/changing................ 374
Mou nting awheel .......................... 336
Rem oving awheel .......................... 336
Storing ........................................... 375
Tig htening torque....... .................... 337
Whee lsize/ tires ize ....................... 375Windo
wcurtain airbag
Displ aymessa ge............................ 246
Opera tion............ ...... .......................4 4
Windo ws
Cl eani ng...... ...... ............................. 321
see Side windows
Windshi eld
Defrosting ...................................... 131
Infrared reflective .......................... 309
Winds hieldwasher system.............. 315
Notes ............................................. 390
Winds hieldwiper s
Problem (malfunction) ................... 120
Rea rwindow wiper........................ 118
Rep lacing thewiper blades ............ 119
Switchi ngon/off ........................... 118
Winte rdriving
Imp orta ntsafety note s.................. 352
Slip pery road surfaces................... 162
Snow chains.................................. 353
Winte roperatio n
Ra dia tor cover ............................... 313
Winte rtires
M+S tires....................................... 352
Wiper blades
Cl eani ng....... ..................... ............. 321
Importa ntsafe tynotes .................. 119
Rep lacing (rearwindow) ................ 119
Rep lacing (windshi eld)................... 119
Woo dentrim (clean ing
ins truction s)...................................... 32420
In
dex

hard,
donot overload it.And, alwayswear
your seatbelts atall times. Inarollover crash,
an unbelted personissignificantly morelikely
to die than aperson wearing aseat belt. Operat
ingsafety Safety
notes G
WARNING Work
improperly carriedoutonelectronic
componen tsand associated softwarecould
cause themtocease functioning. Because the
vehicle's electronic componentsare
interc onnec ted,anymodifications mademay
produce anundesired effectonother
systems. Electronicmalfunctions could
seriously impairtheoperating safetyofyour
vehicle.
Contact anauthorized Mercedes-Ben zCent er
for repairs ormodificat ionstoelectr onic
compon ents.
Other improper workormodificat ionsonthe
vehicle couldalsohave anegativ eimpact on
the operatin gsafety ofthe vehicle.
Some safety systems onlyfunction when the
engine isrunn ing.You should thereforenever
turn offthe engine whiledriving. G
WARN
ING Heavy
blowsagainst thevehicle underbody or
tires/ wheels maycause serious damage and
impair theoperatin gsafety ofyour vehicle.
Such blows canbecaused, forexample, by
runn ingover anobstacle, roaddebris ora
pothole.
If you feel asudden significantvibration or
ride disturbanc e,or you suspect thatdamage
to your vehicle hasoccurr ed:
R turn onyour hazard warning flashers.
R slow down carefully.
R drive withcaution toan area which isasafe
distanc efrom theroad.
Inspec tthe vehicle underbody andtires/
wheels forpossible damage. Ifthe vehicle appea
rsunsafe, haveittowed tothe nearest
authorized Mercedes-Ben zCent eror other
qualified maintenanc eor repair facility for
furth erinspect ionorrepairs. On-boar
ddiagnost icinter face G
WARN
ING If
you connectequipmen tto the on-board
diagnos ticsint erfac e,itcan affec tthe
operat ionofthe vehic lesyste ms.This can
impair theoperat ingsafet yofyour vehicle
while driving. Thereisarisk ofaccident .
Do not conn ectany equipment tothe on-
board diagnostics interface. G
WARNING Loose
equipment orequipment cableswhich
are conn ected tothe on-board diagnostics
interf acecan obstruct thearea around the
pedals. Theequipment orthe cables couldget
between thepedals inthe event ofsudden
braking oracceleration. Youmay then no
longer beable tobrake, operate theclutch or
accelerate asinten ded.There isarisk of
accident .
Do not attach anyequipment orcables inthe
driver footwell.
Connect ingequipment tothe on-board
diagnostics interfacecan lead toemissions
monit oringinformat ionbeing reset. Thismay
lead tothe vehicle failingtomeet the
requirements atthe next special emissions
test ormain inspect ion.
If the engine isswitched offand equipment
on the on-board diagnostic interfaceisused,
the start erbattery maydischarge.
The on-board diagnostics interfaceisonly
inten dedforthe conn ection ofdiagnostic
equipment ataquali fiedspecialist workshop. 24
Introdu
ction

Warning
andindic atorlamps Func
tion Page
:
Low-be
amheadlamps 109
;
ESP
® 273
=
High-be
amheadlamps 111
?
Electric
parkingbrake (red) 271
F
(USAonly) !
(Canada only) A
Electric
parkingbrake
(y ell ow) 271
B
Distance
warning signal 279
C
Turn
signa l 111
D
Tire
press uremonitor 280
E
SRS
275 Func
tion Page
F
Seat
belt 269
G
Diesel
engine: preglow 140
H
Coo
lant 277
I
Rea
rfog lamp 110
J
Check
engine 276
K
Reserve
fuel 276
L
ESP
®
OFF 273
M
ABS 272
N
Brakes 271
$
(USAonly) J
(Canada only) 30
Instrum
entclusterAt a glance

Useful
information
i This
Operat or'sManual describesall
models andallstan dard andoption al
equipment ofyour vehicle available atthe
time ofpublication ofthe Operat or's
Manual. Country-specificdiffer encesare
possible. Pleasenotethat your vehicle may
not beequipped withallfeature s
descr ibed. Thisalso applies tosafet y-
related systemsand func tions. i
Please
readtheinfor mation onqualified
specialist workshops(Ypage 25). Occupant
safety Overview
ofoccupant safety
In this section, youwilllearn themost
import antfactsabout therest raint system
compo nentsof the vehicle.
The restraint system consists of:
R seat belts
R child restraint system s
R LATCH -type (ISOF IX)child seatanchors
Addit ional protection isprovided by:
R SRS (Supplemen talRestrain tSyst em)
R PRE -SAF E®
R Airb ag syst emcompo nentsw ith:
- PAS SENGER AIRB AG OFF indicator lamp
- fro nt-pa ssenge rseat with Occupant
Classification System(OCS)
The differen tairbag systems work
indep endently of each other.The protective
func tionsof the syst emwork incon junction
with each other.Not allair bags aredeployed
in an acc ident . G
WARN
ING Modif
ications toor work impro perly
con duct edon rest raint systemcom pone nts
or the irwirin g,as well astam perin gwith
int erc onn ectedelect ronicsyst ems, canlead to
the rest raint systems nolong erfunc tioning
as intende d.
Air bags orEm ergen cyTens ionin gDev ices
(ETD s),for exam ple,could deploy
inadv ertent lyor fail todeploy inacc ident s
altho ughthedecele ration threshold forair
bag deploymen tisexceeded. Therefore,
never modify therestraint systems. Donot
tamper withelectronic component sor their
software. i
See
"Children inthe vehicle"
(Y page 54)formore information on
infants andchildren traveling withyouin
the vehicle andrestraints forinfants and
children. SRS
(Supplemental RestraintSystem)
Introduction SRS
consists of:
R the 6 SRSwarning lamp
R air bags
R air bag cont rolunit (with crash sensors)
R Emergenc yTensioning Devicesforthe
front seatbelts andtheouter seatbelts in
the rear
R belt force limiters
SRS reduces therisk ofoccupants coming
into contactwith thevehicle's interiorinthe
event ofan accident. Itcan also reduce the
effect ofthe forces towhich occupants are
subjected duringanaccident.
SRS warning lamp SRS
function sare checked regularlywhen
you switch onthe ignition andwhen the
engine isrunning. Therefore, malfunctions
can bedetected ingood time.
The 6 SRSwarning lampinthe instrument
cluster lightsupwhen theignition isswitched
on. Itgoes outnolater thanafew seconds
after theengine isstarted. 38
Occ
upant safetySafety

The
SRS compon entsare inoperational
readiness whenthe6 SRSwarning lamp
is not litwhile theengine isrunnin g. G
WARNIN
G The
SRS self-c heck hasdetect eda
malfunct ionifthe 6 SRSwarning lamp:
R does notcome onatall
R fails togo out approximately 4secon ds
after theengine wasstart ed
R comes onafter theengine wasstart edor
while driving
For your safety, Mercedes- Benzstrongly
recom mends thatyouhave thesystem
check edassoon aspossible atan authorized
Mercedes- BenzCenter .Othe rwise the SRS
ma ynot beacti vated when itis nee dedin an
acc ident, which cou ldres ultins erious orfatal
injury. TheSRS might alsodeploy
unexpec tedlyandunnec essarily whichcould
also result ininjury.
In addition, improper workonthe SRS creat es
a risk ofrender ingthe SRS inoperat iveor
causing unintended airbag deployment. Work
on the SRS must theref oreonly beperform ed
by qualified technician s.Contac tan
auth orizedMer cedes-Ben zCent er.
If it is neces sarytomodify anair bag system
to accomm odateaperson withdisabilities,
con tact anauthorized Mercedes-BenzCenter
for details. USAonly: CallourCustomer
Assist anceCenter at1-8 00-FOR-ME RCedes
(1-8 00-367- 6372 )for details.
Safet yguidel inesfor seat belts,
Emerge ncyTensi oningDevic es(ETDs)
and airbags G
WARNING R
Damag edsea tbelts orseat belts thathave
been subject edtostres sin an acciden t
must bereplaced. Theiranchor ingpoint s
must alsobecheck ed.Only useseat belts inst
alled orsupplied byan authorized
Mercedes- BenzCenter .
R Air bags andpyrotec hnicEmer gency
Tension ingDevic es(ETD s)con tain
perchlor atematerial, whichmayrequire
special handling andregard forthe
enviro nment.Check yournation aldisposal
guidelines. Californiaresidents,see
www.dtsc.ca .gov/HazardousWast e/
Perchlora te/index.cfm.
R Air bags andETDsare designed tofunc tion
on aone- time- onlybasis. Anairbag orETD
that hasdeployed mustbereplaced. PRE-
SA FE®
has electr icallyoperated reversible
belt tensioners inaddition tothe
pyrotec hnicETDs.
R Do not pass seatbelts oversharp edges.
They could tear.
R Do not make anymodificat ionthat could
change theeffec tivenessofthe seat belts.
R Do not bleach ordye seat belts asthis may
severely weakenthem.Inacrash theymay
not beable toprovide adequate protection.
R No modificat ionsofany kind maybemade
to any compon entsor wiring ofthe SRS.
R Do not change orremove anycompon ent
or part ofthe SRS.
R Do not installadditional trimmaterial, seat
cover s,badges, etc.tothe:
- padded steering wheelboss
- knee bagcovers
- front -passenger airbag cover
- outer sideoffront seatbolsters
- outer sideofrear bench seatbackrest
seat bolsters
- roof lining trim
R Do not install additional electrical/
electron icequipment onornear SRS
componen tsand wiring.
R Keep areabetween airbags andoccupant s
free ofobject s(e.g. packages, purses,
umbrellas, etc.).
R Do not hang items suchascoat hangers
from thecoat hooks orhandles overthe Occupant
safety
39Safety
Z