2012 MERCEDES-BENZ M-Class climate settings

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

Steering
(displaymessage) ..............266
Stee ring wheel
Adjusting (electrical ly). .................. 101
Adjusting (manual ly). ..................... 101
Button overview............................... 31
Buttons (on-board
compu ter)...................................... 223
Cl eani ng....... .............. ....... ............. 324
Importa ntsafe tynotes .................. 100
Pad dleshifte rs............................... 147
Steering wheelhea ting .................. 101
Storing settings (memory
function) ........................................ 105
Stee ring wheelheatin g
Prob lem(malfunction) ................... 101
Switchi ngon/off ........................... 101
Stee ring wheelpaddle shifters........ 147
Stow agecompartm ents
Cu ph olders ................................... 293
Eyeg lasses compa rtment ............... 285
Gl ove box .......... .. .... .................... ...2 85
Importa ntsafe tyinforma tion......... 284
Parce lnet ...................................... 286
Summer opening
see Conve nience opening featu re
Summer tires..................................... 352
Sun visor............................................ 295
Suppleme ntalRestrain tSyste m
see SRS (Supplemental Restraint
System)
Surround lighting (on-bo ard
co mputer) .......................................... 235
SUV (Sport UtilityVehi cle)....................... 23
Swi tchin gair-rec irculation mode
on/ off................................................. 133
Swi tchin goff the alarm (ATA) ............ 68 T
Tachome
ter.................. ...................... 223
Tailg ate
Displ aymessa ge............................ 266
Emergency unlocking ....................... 84
Importa ntsafe tynotes .................... 81
Limi ting theopeni ngangl e............... 84
Openi ng/closi ng(automa tically
from inside)....... ...............................83 Openi
ng/closi ng(automa tically
from outside)................................... 82
Openi ng/closi ng(from outside)....... 82
Tail lamps
Displ aymessa ge............................ 252
Tank
see Fuel tank
Tank content
Fuel gauge....................................... 29
Techn ical data
Notes ............................................. 380
Tire s/whe els................................. 375
Trai lerLoad s.................................. 391
Vehi cledata ................................... 390
TELE AID
Ca llprio rity.................................... 303
Displ aymessa ge............................ 245
Downlo ading desti nations
(C OMAND) ..................................... 303
Emergency call.............................. 300
Importa ntsafe tynotes .................. 299
Locati ngastolen veh icle. .............. 304
MB info callbutton ........................ 302
Rem otevehi clelocking .................. 304
Roa dside Assista ncebutton .......... 301
Search &Send ............................... 303
Self-test ......................................... 299
System .......................................... 299
Vehi cleremote unlocking .............. 304
Tele phone
Accepting acall............................. 231
Displ aymessa ge............................ 267
Menu (on-boa rdcompu ter)............ 230
Numb erfrom thephone book........231
Red ialing ........................................ 231
Reje cting/endi ngacall................. 231
Tele scopic rod (EASY -PAC Kload-
sec uring kit)....... ................................292
Temperature Coo lant .......................................... 222
Outsi detempera ture......................223
Setting (climate control) ................ 130
Theft deterren tloc king syste m
Immobi lizer...................................... 68
Through-lo ading................................ 286
TIREF ITkit .......................................... 330 In
dex
17

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). Overview
ofclimat econtrol systems Impor
tant safet ynotes G
WARN
ING Sever
econ dition s(e.g. strong airpollution )
may require replacem entofthe filter before
its scheduled replacementinterval. Aclogged
filt er will reduc ethe airvolume tothe interior
and thewindows couldfogup,impairin g
visibilit yand endan geringyou and others.
Have ablock edfilterreplac edataMerc edes-
Ben zCent eras soon aspossible. G
WARN
ING Follow
therecom mended settings forheating
and cooling givenonthe following pages.
Other wise, thewindows couldfogup,
impairing visibilityandendanger ingyou and
other s.
Autom aticclimate control controls the
temper atureandthehumidity ofthe vehicle
int erior andfilters outundesirable
substanc esfrom theair.
Autom aticclimate control isonly operation al
when theengine isrunn ing9
.O ptimum
operation isonly achieved ifyou drive withthe
side windows andsliding sunroof /panorama
roof with power tilt/sliding panelclosed. i
Vent
ilate thevehicle forabrief period
during warmweather, e.g.using the
con venien ceopenin gfeature (Ypage 86).
This willspeed upthe coolin gproces sand
the desired vehicleinterior temper ature
will bereached morequickly. i
The
integrated filtercanfilter outmost
partic lesofdust andcomplet elyfilter sout
pollen. Aclogged filterreduc esthe amoun t
of air supplied tothe vehic leint erior .For
this reason, youshould alwaysobserve the
inter valforreplacing thefilter, which is
specified inthe Servic eBooklet .Asit
depends onenvironmen talconditions, e.g.
heavy airpollu tion, theinterval maybe
shorter thanstated inthe Service Booklet.
9 The residua lheat function canonly beactivated/deactivated whentheignition isswitched off. 122
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

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 Switches theZONE function on/off(Ypage 131)
D Switches climatecontrolon/off (Ypage 128)
E Sets theairdistribution (Ypage 130)
F Increases theairflow (Ypage 131)
G Redu cestheairflow (Ypage 131)
H Display
I Adjusts theclimate controlsettings (AIRFLOW) (Ypage 129)
J Activates/deactivates air-recirculationmode(Ypage 133)
K Sets climate controltoautomatic (Ypage 129)
Rear control panel
L Increases theairflow (Ypage 131)
M Sets thetemperature (Ypage 130)
N Sets therear-compartment climatecontroltoautomatic (Ypage 129)
O Directs theairflow through therear airvents (Ypage 130)
P Directs theairflow through thefootwell vents(Ypage 130)
Q Switches rear-compartment climatecontrolon/off (Ypage 128)
R Redu cestheairflow (Ypage 131) Overview
ofclimat econ trol systems
127Climate 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

norm
aland notasign tha tther eis a
ma lfunctio n. i
The
cooling with aird ehumidification
func tion uses refriger antR134a. This
coolant doesnotcontain
chlorof luorocarbon s,and therefore does
not damage theozon elayer.
Activating/d eactivating X
To activa te:press the¿/Á button.
The indicat orlamp inthe ¿/Á
button lightsup.
X To deactiva te:press the¿/Á
button .
The indicat orlamp inthe ¿/Á
button goesout.Thecooling withair
dehumidification function hasadelayed
switch -offfeature.
Problems withthecooling withair
dehum idificat ionfunction When
youpress the¿/Á button,the
indicat orlamp inthe button flashes three
times orremains off.You cannolonger switch
on the cooling withairdehumidification
func tion.
X Consult aqualified specialist workshop. Sett
ingclimat econtrol toaut omat ic G
WARN
ING If
you switch offthe cooling function,the
vehicle willnotbecooled whenweather
con ditions arewarm. Thewindows canfogup
more quickly. Window foggingmayimpair
visibility andendanger youand other s.
In automatic mode,thesettemper atureis
maint ained automatic allyatacon stan tlevel.
The system automatic allyregulates the
temper atureofthe dispensed air,the airflow
and theairdistribut ion.
Autom aticmode willachieve optimal
operation ifcooling withairdehumidification is
also activat ed.Ifdesired, coolingwithair
dehumidification canbedeactivat ed.
In the rear compart ment,you can also switch
climate control forthe rear seats toautomatic
mode usingtheà button .
X Turn theSmart Keytoposition 2in the
ignition lock.
X Set thedesired temperature.
X To activa te:press theà button .
The indicat orlamp inthe à button lights
up. Autom aticairdistribut ionand airflow
are activ ated. i
Autom
aticclimate control: when
automatic modeisactivat ed,you can
select aclimate modesetting
(Y page 129).
X To switch off:press the_ button .
or
X Press theI orK button .
The indicat orlamp inthe à button goes
out. Adju
sting theclimat emode settings
(AIR FLOW)
This function isonly available withautomatic
climate control.
The climate control settings areespecially
effec tiveathigh temper atures.
You canselect thefollowing climatecontrol
sett ings inautomatic mode:
FOCUS highairflow thatisset slightly
cooler
MED IUM medium airflow,standard setting
DIF FUS Elow airflow thatisset slightly
warmer andwith alower rateof
airflow Opera
tingtheclimate controlsystem
129Climate control Z

X
To switchof f:pre ssthe ¬ button.
The indicator lamp inthe ¬ button goes
ou t.The previouslysel ecte dsettings come
int oeffec tagain. Thecooling withair
dehumidification functionremains on.Air-
recirculation moderemains deactivated.
or
X Press theà button .
The indicator lampinthe ¬ button goes
out. Airflow andairdistribution aresetto
automatic mode.
or
X Turn controls:orB clock wiseor
count er-clockwise (Ypage 123),
(Y page 123).
or
X Press theK orI button . Switching
maximumcool ingMAX
COOL on/off
The MAX COOL functionisonly availa blein
vehicles forthe USA .
MAX COOL isonly operational whenthe
engine isrunnin g.
When youactivate MAXCOOL, climate
cont rolswitches tothe following functions:
R maximum cooling
R maximum airflow
R air-recirc ulationmodeon
X To activat e:press theÙ button .
The indicator lampinthe button lightsup.
X To deactivat e:press theÙ button
again.
The indicator lampgoesout.Thepreviously
selected settings come intoeffect again. Defrosting
thewindows
Windows foggeduponthe inside X
Act ivate the¿/Á coolingwithair
dehumidification function.
X Act ivate automatic modeÃ.
X Ifthe windows continue tofog up,activate
the defrostin gfunct ion(Ypage 131). i
You
should onlyselect thissettinguntil
the windshield isclear again.
Windows foggeduponthe outside X
Act ivate thewindshield wipers.
X Press the_ button repeatedly untilthe
P orO symbol appears inthe
display . i
You
should onlyselect thissettinguntil
the windshield isclear again. Rear
window defroster
Activating/deactivat ing G
WARNING Any
accumulation ofsnow andiceshould be
removed fromtherear window beforedriving.
Visibility couldotherwise beimpaired,
endangering youand others.
The rear window defroster hasahigh current
draw. Youshould therefor eswitch itoff as
soon asthe window isclear asitonly switches
off automatically afterseveral minutes.
If the battery voltage istoo low, therear
window defroster mayswitch off.
X Turn theSmart Keytoposition 2in the
ignition lock.
X Press the¤ button .
The indicator lampinthe ¤ button lights
up orgoes out. 132
Opera
tingtheclimate controlsystemClimate control