2012 MERCEDES-BENZ M-Class front window 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

=
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

Note
son using 3-zo neauto matic
cl imate contro l
Th efol lowi ng conta insnote sand
rec omm endations onoptim um opera tiono f
auto maticclim atecontrol.
R Ac tivate clim atecontrol usin gth eà and
¿ buttons .T he indicator lampsinthe
à and¿ buttons lightup.
R In automatic mode,youcan also usethe
ñ button toset aclimate mode
(FOCUS/ME DIUM/DIFFUSE). The
MEDI UMlevel isrecommen ded.
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 sideandtherear
compartmen taswell .The indicator lampin
the á button goesout.
R Use theresidual heatfunct ionifyou want
to heat orvent ilate thevehicle interior
when theignition isswitched off.The
"residu alheat" functioncan only be
activated ordeactivated withtheignition
switched off. Operat
ingthe climate controlsystem Activating/deactivating
climate
control
Import antinformat ion G
WARNING When
theclimate controlsystem is
deactivated, theoutside airsupply and
circulation arealso deactivated. Onlychoose
this settin gfor ashort time.Otherwise the windows
couldfogup,impairing visibilityand
endangering youand others. i
Switch
onclimate controlprimarily using
the à button (Ypage 129).
In the rear compartmen t,you can also switch
climate controlonand offusing theà and
^ buttons.
Activating/deactivating X
Turn theSmartK eytoposition 2in the
ignition lock.
X To switch on:press theà button.
The indicator lampinthe à button lights
up. Airflow andairdistribution aresetto
automatic mode.
or
X Press the^ button.
The indicator lampinthe ^ button goes
out. Thepreviously selectedsettingscome
into effect again.
X To switch off:press the^ button.
The indicator lampinthe ^ button lights
up. Activating/deactivating
thecool ing
with airdehum idification function
Import antinformat ion The
cooling withairdehumidi ficationfunction
is only availa blewhen theengine isrunning.
The airinside thevehicle iscooled and
dehumidi fiedaccording tothe temperature
selected. G
WARNING If
you switch offthe cooling function,the
vehicle willnotbecooled whenweather
condition sare warm. Thewindows canfogup
more quickly. Window foggingmayimpair
visibili tyand endanger youand others.
Condensation maydripfrom theunderside of
the vehicle whenitis in cooling mode.Thisis 128
Operat
ingthe climate controlsystemClimate control

Rear
control panel:
M Directsthe airflo wthrou ghthe rear
center andrearsid eairvents.
O Directsthe airflo wthrou ghthe
footw ellai rv ent s i
Using
therear control panel, youcan also
activat eboth airdistribut ionposition s
simultaneously. Inorder todo this, press
both airdistribut ionbutton s.The airisthen
routed through allrear airvent s. i
Regardless
ofthe airdistribut ionsett ing,
airflow isalway sdirect edthrough theside
air vent s.The side airvent scan only be
closed whenthecontrols onthe side air
vent sare turn eddownwards.
X Turn theSmart Keytoposition 2in the
ignition lock.
X Front control panel:pressthe_
button repeatedly untilthedesired symbol
appears inthe display.
X Rear control panel:presstheM and/
or O button . Sett
ingthe airflow
X Turn theSmart Keytoposition 2in the
ignition lock.
X To increase: presstheK button .
X To redu ce:press theI button . i
You
canuseautomatic climatecontrol to
set the airflow inthe rear compart ment
separately. Switching
theZONE function on/off
X To switch on:press theá button .
The indicat orlamp inthe á button lights
up.
Dual-z oneautomatic climatecontrol: the
temper aturesettingforthe driver's sideis not
adopted forthe fron t-passenger side.
The temper atureofthe fron t-passenger
side isadopted forthe rear compart ment.
Autom aticclimate control: the
temper aturesettingforthe driver's sideis
not adopted forthe fron t-passenger side
and therear compart ment.
When thebutton sor con trols for
temper ature,airflow orair distribut ionare
activat ed,the temper aturesettingforthe
driver's sideisnot adopted forthe other
climate control zones.
X To switch off:press theá button .
The indicat orlamp inthe á button goes
out.
The temper aturesettingforthe driver's
side isadopted forthe fron t-passenger side
and therear compart ment. Defrosting
thewindshield
You canusethis func tion todefrost the
windshield ortodefrost theinside ofthe
windshield andtheside windows. i
You
should onlyselect thedefrost ing
func tion until thewindshield isclear again.
X Turn theSmart Keytoposition 2in the
ignition lock.
X To activa te:press the¬ button .
The indicat orlamp inthe ¬ button lights
up.
The climate control system switchestothe
following functions:
R cooling withairdehumidification on11
R high airflow 12
R high temper ature12
R air distribut iontothe windshield and
fron tside windows
R air-r ecirculat ionmode off
11 Only withenginerunn ing.
12 Depe ndingon the outs idetem perat ure. Oper
ating theclima tecontr olsyst em
131Climate control Z