2012 MERCEDES-BENZ M-Class light

If
the new bulbstill does notlightup,con sult
a qualified specialist workshop.
Bulbs andlamps areanimport antaspect of
vehicle safety.Youmust therefore make sure
that these function correctlyat all times .
Have theheadlamp settingchec kedregularly. G
WARN
ING Bulbs
andlamps canbevery hot.Youshould
ther efore allowthemtocool down before you
chang ethem .Othe rwise, yo ucou ldbe burned
if yo utou chthe m.
Kee pbu lbsou to fthe reach ofchildren.
Otherwise, theycould damage thebulbs, for
example, andinjure themselves.
Never useabulb which hasbeen dropped.
Such abulb maybreak oreven explode and
injure you.
Halogen bulbsarepressurized andcan
explode whenyouchange them,particularly
if they arevery hot.Youshould therefore wear
eye protect ionand gloves whenyouare
changing them. Overview:
changingbulbs/bulb types
You canchange thefollowing bulbs.Thebulb
type canbefound inthe legend. Halogen
headlamps
: Low-beam headlamp:H755W
; High-beam headlamp:H755W
= Parking lamp/standing lamp:W5W BV
? Side marker lamp:WY5W Tail
lamp
: Brake lamp:P21 W-L Changing
thefront bulbs
Removing andinstalling thecover inthe
front wheel arch You
must remove thecover fromthefront
wheel housing beforeyoucan change the
front bulbs. X
To remove: switchoffthe lights.
X Turn thefront wheels inwards.
X Slide upcover :and liftitout.
X To install: insertcover:again andslide
it downwards untilitengages. Replacing
bulbs
115Lights and windshield wipers Z

Low-bea
mheadlam ps(ha logen
hea dlamp s) X
Remov eth ecov erinthefron twheel arch
(Y page 115).
X Turn housin gcov er: coun ter-clo ckwise
and pullitout.
X Turn bulbholde r; coun ter-clo ckwise and
pull itout .
X Take thebulb outofbulb holde r;.
X Inser tthe new bulb intobulb holder ;.
X Insert bulbholder ;into thelamp andturn
it clockwise.
X Align housing cover:and turn it
clockwise untilitengages.
X Repla cethe cover inthe front wheel arch
(Y page 115).
High-beam headlamps(halogen
headlam ps) X
Switch offthe lights.
X Open thehood. X
Turn housing cover:counter- clockwise
and pullitout.
X Pull lever =upwa rdsand remove bulb
holder ;.
X Take thebulb outofbulb holder ;.
X Insert thenew bulb intobulb holder ;.
X Simultaneously pressbulbholder ;and
pull lever =downwards.
X Align housing cover:and turn it
clockwise untilitengages.
Parking lamps/sta ndinglamps
(halogen headlamps) X
Turn housing cover:counter- clockwise
and pullitout.
X Pull outbulb holder ;.
X Take thebulb outofbulb holder ;.
X Insert thenew bulb intobulb holder ;.
X Insert bulbholder ;.
X Align housing cover:and turn it
clockwise untilitengages. 116
Replacing
bulbsLights and windshield wipers

Side
markerlamp s X
Remove thecover inthe front wheel arch
(Y page 115).
X Turn cap;counter -clockwiseandremove
it.
X Pull outbulb holder :.
X Take thebulb outofbulb holder :.
X Insert thenew bulb intobulb holder :.
X Insert bulbholder :.
X Align cap;and turn itclockwise.
X Inst allthe cover inthe front wheel arch
(Y page 115). Changing
therear bulbs
Opening andclosi ngthe service flap You
must opentheservice flapinthe cargo
compartmen tbefore youcan change the
bulbs inthe taillamps. Left-
hand service flap Right-hand
serviceflap
X To open: release serviceflap:atthe top,
e.g. with ascrewdriver, andswing it
downward inthe direction ofthe arrow.
X Right side:remove thefirst- aidkit
beforehand andpulltheparcel netdown.
X To close :reinsert serviceflap:.
Bra kelamp X
Switch offthe lights.
X Open thecargo compartmen t.
X Open theservice flap(Ypage 117). :
Brake lamp
X Turn thebulb holder counter -clockwiseand
remove it.
X Remove thebulb from thebulb holder.
X Insert thenew bulb intothebulb holder.
X Insert thebulb holder andturn itclockwise.
X Close theservice flap(Ypage 117). Replacing
bulbs
117Lights and windshieldwipers Z

Windshi
eldwipers Swi
tchin gthe windshie ldwipers on/
off G
WARNING Wip
erbla des arecomponents thataresub ject
to wea rand tea r.Re place thewipe rb lades
twic eayear, preferably inthe sprin gand fall.
Oth erwise thewindows willnotbewiped
proper ly.As aresult ,you may notbeable to
obser vesurro undin gtraffic condition sand
could cause anacc ident .
! Donot operat ethe windsh ieldwipers
when thewindsh ieldisdry, asthis could
damage thewiper blades. Moreover,dust
that hascollec tedonthe windsh ieldcan
scr atc hthe glass ifwiping takesplace when
the windsh ieldisdry.
! Ifthe windsh ieldwipers leavesmear son
the windsh ieldafterthe vehic lehas been
washed inan autom aticcarwash, waxor
oth erresidues maybethe reason forthis .
Clean thewindsh ieldusing washer fluid
aft erwashing thevehic lein an autom atic
car wash. Combin
ationswitch
1 $ Winds hieldwipers off
2 Ä Inter mit ten twipe, low7
3 Å Inter mit ten twipe, high8
4 ° Continuous wipe,slow
5 ¯ Continuous wipe,fast B
í Single wipe
C î Towipe withwasher fluid
X Swit chon the ignit ion.
X Turn thecom binat ionswitc hto the
appropr iateposit ionorpress thebutt onon
the side.
! Inter mit ten twiping withrainsensor: due
to optic alinf luenc esand thewindsh ield
becom ingdirtyin dry weather condition s,
the windsh ieldwipers maybeact ivate d
inadv ertent ly.This could thendamage the
wind shieldwiper blades orscrat ch the
wind shield.
For this reas on,you should always switch
off thewind shieldwiper sin dry weat her.
In theÄ orÅ position,theappro priate
wipin gfrequen cyisset auto maticall y
acc ording totheint ensityof therain .In
th eÅ position,therain sensor ismor e
sen sitive than intheÄ position,caus ing
th ewind shieldwiper sto wipe more
fr equen tly. Swit
ching therea rwindow wiperon/
off Combin
ationswitch
: è Rearwindow wiperswitch
2 b Towipe withwasher fluid
3 ° Toswitc hon intermit tentwiping
7 Rain sensorset tolow sens itivity.
8 Rain sensorset tohigh sensitivity. 118
Wind
shield wipersLights and windshield wipers

4
e Toswitch offinter mittentwiping
5 b Towipe withwasher fluid
X Turn theSmart Keytoposition 1or 2in the
ignition lock.
X Slide switch :onthe combinat ionswitch
up ordown tothe appropriate position.
When therear window wiperisswitched on,
the icon appears inthe instr ument cluster. Replacing
thewiper blades
Impor tantsafety notes G
WARNIN
G For
safety reasons, switchoffthe windshield
wipers andremove thekey from theignition
lock before changin gthe wiper blades
(vehicles withKEYLE SS-GO: make surethat
the on-board electronicsare instate 0).
Otherwise, thewiper motor couldbeswitched
on suddenly andcause injury.
! Toavoid damaging thewiper blades,
make surethatyoutouch onlythewiper
arm ofthe wiper.
! Never openthehood ifawindshield wiper
arm hasbeen folded awayfromthe
windshield.
Never foldawindshield wiperarmwithout
a wiper bladebackontothe windshield/
rear window.
Hold thewindshield wiperarmfirmly when
you change thewiper blade. Ifyou release
the windshield wiperarmwithout awiper
blade anditfalls ontothe windshield, the
windshield maybedamaged bythe force of
the impact.
Mercedes- Benzrecomm endsthatyouhave
the wiper blades replaced byaq ualifi ed
spec ialist workshop,e.g. at an auth orized
Mer cedes- BenzCent er. Changing
thewindshield wiperblades Removing
thewiper blades
X Remove theSmart Keyfrom theignition
lock.
X Fold thewiper armaway fromthe
windshield. X
Firmly pressrelease knob : and pullthe
wiper bladeupwards fromthewiper armin
the direct ionofthe arrow.
Installing thewiper blades
X Position thenew wiper bladeinthe retain er
on the wiper armandslide itint oplace in
the opposite directiontothe arrow.
The wiper bladeaudibly engages.
X Make surethatwiper bladeisseated
corr ectly.
X Fold thewiper armback ontothe
windshield.
Repla cingtherear window wiperblade Removing
thewiper blade G
WARN
ING The
wiper armcould beset inmotion and
injur eyou ifthe wiper isswitch edon.
Remove thekey from theignition lockbefore
replacing thewiper blade. Windsh
ieldwipers
119Lights and windshield wipers Z

X
Remo vetheSm artKey from theign ition
loc k.
X Fo ldwiper arm:away from therear
win dow untilit en gage s.
X Pos ition wiper blade;atarig ht ang leto
wiper arm:.
X Ho ldwiper arm:and presswiper
blade ;inthedir ection ofthearr ow until
it rel ease s.
X Remo vewiper blade;.
Inst alling thewipe rblad e
X Place newwiper blade;ontowiper
arm :.
X Hold wiper arm:and press wiper
blade ;inthe opposit edirec tiontothe
arrow untilit engage s.
X Make surethatwiper blade;isseated
cor rectly.
X Posit ionwiper blade;parallel towiper
arm :.
X Fold wiper arm:back ontothe rear
window. Problem
swith thewindshield wipers
Th ewindshield wipersareobstr ucted Leaves
orsno w,for examp le,may be
obst ructingthe windsh ieldwiper movement.
The wiper motorhas been deact ivated . X
For safet yreason s,you should removethe
Smar tKey from theignit ionlock .
or
X Swit choff the engin eusing theStart/ Stop
butt onand open thedriver 'sdoor.
X Remove thecause ofthe obst ruction.
X Swit chthe windsh ieldwipers backon.
Th ewindshield wipersareinoper ative The
windsh ieldwiper driveismalfun ctionin g.
X Selec tanothe rwiper speed onthe
com binat ionswitc h.
X Have thewinds hieldwipers checkedata
qualified specialist workshop.
Th espr aynozz lesaremisa ligned The
winds hieldwasher fluidfromt hespray
nozz lesnolonger hitsthecent erofthe
windshield. Thespray nozzlesare misaligned.
X Have thespray nozzlesadjusted ata
qual ified specialist workshop. 120
Windshield
wipersLights and windshield wipers

=
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