2012 MERCEDES-BENZ M-Class defrost

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

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

Problems
withtheseat heating The
seat heating hasswitched off
prematurely orcannot beswitched on.The
vehicle's electrical systemvoltage istoo low
because toomany electrical consumers are
switched on.
X Switch offelectrical consumers whichyou
do not need, suchasthe rear window
defroster orinterior lighting. Switching
theseat ventilation on/off
Switching on/off The
three blueindicator lampsinthe buttons
indicate thevent ilation levelyouhave
selected. i
If
the battery voltage istoo low, theseat
vent ilation mayswitch off. X
Make surethattheSmartK eyisin position
2 in the ignition lock.
X To switch on:press button :repeatedly
until thedesired ventilation levelisset. i
You
canopen theside windows andthe
sliding sunroof usingthe"Convenience
opening" feature(Ypage 86).Theseat
vent ilation ofthe driver's seat
automatically switchestothe highest level.
X To switch off:press button :repeatedly
until allthe indicator lampsgoout. Problems
withtheseat ventilation The
seat ventilation hasswitched off
prematurely orcannot beswitched on.The
vehicle's electrical systemvoltage istoo low
because toomany electrical consumers are
switched on.
X Switch offelectrical consumers whichyou
do not need, suchasthe rear window
defroster orinterior lighting. Steering
wheel Import
antsafety notes G
WARNING Do
not adjust thesteering wheelwhiledriving.
Adjust ingthe steering wheelwhiledriving, or
driving without thesteering wheeladjustment
feature lockedcouldcause thedriver tolose
cont rolofthe vehicle.
The electrical steeringwheeladjustment
feature canbeoperated atany time.
Therefore, donot leave children unattended
in the vehicle, orwith access toan unlocked
vehicle. Achild's unsupervised accesstoa
vehicle couldresult inan accident and/or
serious personal injury. 100
Steering
wheelSeats, steering wheel and mirrors

Adj
usting thest eer ing wheel
ma nua lly :
Releas elev er
; Toadj ust thest eer ing whee lheig ht
= Toadj ust thest eer ing whee lpos ition
(fo re- and -aftadj ust men t)
X Push release lever: down comple tely.
The steer ing column isunl ocked.
X Ad jus tthe steering wheeltothe desired
position.
X Push release lever:upcompletely.
The steering columnislocked.
X Check ifthe steering columnislocked.
When doingso,trytopush thesteering
wheel upordown ortry tomove itin the
fore-and- aftdirection. Adjust
ingthe steering wheel
elec trically :
Toadjust thesteering wheelheight
; Toadjust thesteering wheelposition
(fore-and-aft adjustment) i Other
topics:
R EAS Y-ENTRY/EXI Tfeature
(Y page 102)
R Stor ingsettin gs(Ypage 105) Steering
wheelheating
Switching on/off X
Make surethattheSmartK eyisin position
2 in the ignition lock.
X To switch on/off: turnthelever inthe
direction ofarrow :or;.
Indicator lamp=lights uporgoes out.
Vehicles withoutKEYLESS-GO: when you
remove thekey from theignition lock,the
steering wheelheating isdeactivated.
Vehicles withKEYLE SS-GO: when youswitch
off the ignition andopen thedriver's door,the
steering wheelheating isdeactivated.
Problems withthesteering wheel
heating The
steering wheelheating hasswitched off
prematurely orcannot beswitched on.The
vehicle's electrical systemvoltage istoo low
because toomany electrical consumers are
switched on.
X Switch offelectrical consumers whichyou
do not need, suchasthe rear window
defroster orinterior lighting. Steering
wheel
101Seats, steering wheel and mirrors Z

Mirrors
Rear-view
mirror
Rear-view mirror(manual anti-glare) X
anti-gl aremode: flickanti-gla re
swi tch :forwa rdsorback. Exteri
ormirrors
Adjusting theexteri ormirrors G
WARNING Exercise
carewhen using the passenger-si de
exterior rearview mirror. Themirror surface
is convex (outward lycurved surfacefor a
wid erfiel dof view ).Objects inmirror are
closer thantheyappear. Checkyou rinteri or
rea rvie wmir ror and glance overyo ur
sho ulde rb efore changin glanes.
The exterior mirror sare automatic allyheated
if the rear window defrosterisswitched on
and theoutside temperatureislow. X
Make surethattheSmart Keyisin position
1 or 2in the ignition lock.
X Press button :for the left- hand exterior
mirror orbutton ;for the right- hand
ext erior mirror .
The indicat orlamp inthe corr espondin g
button lightsupinred.
The indicat orlamp goesoutagain after
some time.Youcanadjust theselect ed
mirror usingadjustm entbutton =aslong
as the indicat orlamp islit.
X Press adjustm entbutton =up, down, to
the right ortothe left until theexterior
mirror isset toaposition thatprovides you
with agood overview oftraff iccon ditions .
Folding theexterior mirrorsin or out
electrically X
Make surethattheSmart Keyisin position
1 or 2in the ignition lock.
X Briefly pressbutton :.
Bot hext erior mirror sfold inor out. i
Make
surethattheexterior mirror sare
alway sfolded outfully while thevehicle is
in motion ,as they mayother wisevibrate. i
If
you aredriving fasterthan
30 mph (47km/ h),you can nolonger fold
in the exterior mirror s.
Sett ingthe exterior mirrors If
the batter yhas been discon nectedor
complet elydischarged, theexterior mirror s
must bereset. Theexterior mirror swill Mirr
ors
103Seats, steering wheel and mirrors Z

Cont
rolpanel fordual-zone climatecont rol Canad
aon ly
: Setsth ete mper ature,left (Ypage 130)
; Defrost sth ewind shield(Y page 131)
= Swit ches theZONE function on/of f(Y page 131)
? Activate s/deac tivate sco olin gwithairdehumidif ication (Y page 128)
Ac tivates /deac tivates theresidual heatfunction (Ypage 133)
A Swit ches therear window defrosteron/ off(Ypage 132)
B Setsthe tem perat ure,right (Ypage 130)
C Activates /deac tivates air-recirculat ionmode (Ypage 133)
D Setsthe airdist ribut ion(Ypage 130)
E Incr eases theairflow (Ypage 131)
F Reduces theairflow (Y page 131)
G Swit ches climatecontrol on/ off(Ypage 128)
H Setsclim atecontrol to autom atic(Ypage 129) Over
view ofclima tecontr olsyst ems
123Climate control Z

USA
only
: Sets thetemperature, left(Ypage 130)
; Defrosts thewindshiel d(Y page 131)
= Switches maximum coolingMAXCOOL on/off (Ypage 132)
? Activates/deactivates coolingwithairdehumid ification(Ypage 128)
A Switches therear window defroster on/off(Ypage 132)
B Sets thetemperature, right(Ypage 130)
C Activates/deactivates air-recirculationmode(Ypage 133)
D Sets theairdistribution (Ypage 130)
E Increases theairflow (Ypage 131)
F Redu cestheairflow (Ypage 131)
G Switches climatecontrolon/off (Ypage 128)
H Sets climate controltoautomatic (Ypage 129) Rear
contr olpanel onlyinconnec tionwith special equipment seatheating
: Sets therear-compartment climatecontroltoautomatic
; Switches rear-compartment climatecontrolon/off 124
Overview
ofclimat econ trol systemsClimate control

=
Directs theairfl ow thro ughthe rearai rvents
? Directs theairfl ow thro ught he footwell vents Notes
onusing climate control
The following contains notes and
recommen dationsonoptimum operation of
dual -zoneautomatic climatecontrol.
R Act ivate climate controlusing theà and
¿/Á buttons.Theindicator lampsin
the à and¿/Á buttonslightup.
R Set thetemperature to72 ‡(22 †).
R Only usethe"defrosting" functionbriefly
until thewindshield isclear again.
R Only use"air-recirculation" modebriefly,
e.g. ifthere areunpleasa ntoutside odors
or when inatunn el.The windows could
otherwise fogupas, inair-recirculation
mode, nofresh airisdrawn intothevehicle.
R Use theZONE functiontoadopt the
temperature settingson the driver's side
for the front -passenger sideaswell. The
indicator lampinthe á button goesout. Overview
ofclimate controlsystems
125Climate control Z