2011 MERCEDES-BENZ M-CLASS SUV ignition

X
Drive with the headlamps switched on.
Th elevel of moisture diminishes, depend-
ing on the length of the journey and the
weather conditions (humidity and tem per-
ature).
If th elevel of moisture does not diminish:
X Have the headlamps checked at aquali fied
specialis tworkshop. Interior lighting
Overview of interior lighting
Overhead con
trol panel
: p To switch the left-hand front reading
lamp on/off
; c To switch the front interior lighting
on
= v To switch the rear interior lighting
on/off
? | To switch the front interior lighting/
automatic interior lighting control off
A p To switch the right-hand front read-
ing lamp on/off
B To switch the automatic interior lighting
control on Interio
rlighting control
Impor tant notes In order to prevent the vehicle'
sbattery from
discharging, the interior lighting functions are
automatically deactivated after some time except for when the key is in position
2in the
ignition lock.
The colour and brightness of the ambient
lighting may be set using the on-board com-
puter (Y page 248).
Automatic interior lighting control X
To switch on: set the rocker switch to
centre position B.
X To switch off: set the rocker switch to the
| position.
The interior lighting automatically switches
on if you:
R unlock the vehicle
R open adoor
R remove the key from the ignition lock
The interior light is activated for ashort while
when the key is removed from the ignition
lock .You can activate this delayed switch-off
using the on-boar dcomputer (Y page 249).
Manua linterior lighting control X
To switc hthe fron tinterior lighting on:
set the roc kers witch to the cposition.
X To switch the front interior lighting off:
set the rocker switch to the |position.
X To switch the rear interior lighting on/
off: press the ubutton.
X To switch the reading lamp son/off:
press the pbutton. Crash-responsive emergency lighting
The interior lightin gisactivate dautomatically
if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or
X Lock and then unlock the vehicle using the
key. 112
Interior lightingLights and windscreen wipers

Brake lamp
X
Switch off the lights.
X Ope nthe luggage compartment.
X Open the service fla p(Ypage 115). :
Brake lamp
X Turn the bulb holder anti-clockwise and
remove it.
X Remov ethe bulb from the bulb holder.
X Insert the new bulb int othe bulb holder.
X Insert the bulb holder and tur nitclockwise.
X Close the servic eflap (Y page 115). Windscreen wipers
Switching the windscreen wipers on/
off G
WARNING
The windscreen will not longer be wiped prop-
erly if the wiper blades are worn. This could
preven tyou from observing the traffic condi-
tions, thereby causing an accident .Replace
the wiper blades twic eayear, ideally in spring
and autumn.
! Do not operate the windscreen wipers
when the windscreen is dry, as this could
damage the wiper blades. Moreover ,dust
that has collected on the windscreen can
scratc hthe glass if wipin gtakes place when
the windscreen is dry. !
If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washe dinana utomatic car wash, this may
be due to wax or other residue. Clea nthe
windscreen with washer fluid after an auto-
matic car wash. Combination switch
1
$ Windscreen wiper soff
2 Ä Intermittent wipe, low 7
3 Å Intermittent wipe, high 8
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe
C î To wip ewith washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Turn the combination switch to the appro-
priate position or press the button on the
side.
! Intermittent wiping with rain sensor: due
to optical influences and the windscreen
becoming dirty in dry weather conditions,
the windscreen wipers may be activated
inadvertently. This could damage the wind-
screen wiper blades or scratc hthe wind-
screen.
For this reason, you should always switch
off the windscreen wiper sind ry weather.
In the ÄorÅ position, th eappropriate
wiping frequenc yisset automatically accord-
ing to the intensity of the rain. In the Å
7 Rain sensor set to low sensitivity.
8 Rain sensor set to high sensitivity. 116
Windscreen wipersLights and windscreen wipers

position
,the rain senso rismore sensitive
than in the Äposition ,causing the wind-
screen wiper to wipe more frequently. Switching the rear window wiper on/
off Combination switch
:
è Rear window wiper switch
2 b To wipe with washe rfluid
3 ° To switch on intermittent wiping
4 e To switch off intermittent wiping
5 b To wipe with washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Slide switch :on the combination switch
up or down to the appropriate position.
When the rear window wiper is switched on,
the icon appears in the instrument cluster. Replacing the wiper blades
Import ants afety notes G
WARNING
Th ew iper arm scould star tmovin gand cause
an injury if you leave the windscreen wipers
switched on.
Remove the key from the ignition lock before
replacing the wipe rblades.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper. !
Never open the bonnet if awindscreen
wiper arm has been folded away from the
windscreen.
Never fold awindscreen wiper arm without
aw iper blade back onto the windscreen/
rear window.
Hold the windscreen wiper arm firmly when
you change the wiper blade .Ifyou release
the windscreen wiper ar mwithout awiper
blade and it falls ont othe windscreen ,the
windscreen ma ybedamaged by the force
of the impact.
Mercedes-Benz recommends that you have
the wiper blades replaced by aqualified
specialist workshop, e.g. at aMercedes-
Ben zServic eCentre.
Replacin gthe windscreen wiper blades Removin
gthe wiper blades
X Remov ethe key fro mtheignition lock.
X Fold th ewiper arm away from th ewind-
screen. X
Firmly press release knob :and pull the
wiper blade upward sfromt he wi per arm in
the direction of the arrow. Windscreen wipers
117Lightsand windscr een wipers Z

Fitting th
ewiper blades
X Positio nthe new wiper blade in the retainer
on the wiper ar mand slide it into place in
the opposite direction to the arrow.
The wipe rblade audibly engages.
X Make sure that wiper blade is seated cor-
rectly.
X Fold the wiper arm back onto the wind-
screen.
Replacing the rear window wiper blade Removing the wiper blade
G
WARNING
The wiper arm could be set in motion and
injur eyou if the windscreen wiper sare
switched on.
Remove th ekey from the ignition lock before
replacing the wiper blade. X
Remov ethe key from the ignition lock.
X Fold wiper arm :away from the rea rwin-
dow until it engages.
X Position wiper blade ;atar ight angle to
wiper arm :.
X Hold wiper arm :and press wiper
blade ;in the direction of the arrow until
it releases.
X Remove wiper blade ;. Fitting the wiper blade
X
Place new wiper blade ;onto wiper
arm :.
X Hold wiper arm :and press wiper
blade ;in the opposite direction to the
arrow until it engages.
X Make sure that wiper blade ;is seated
correctly.
X Position wiper blade ;parallel to wiper
arm :.
X Fold wiper arm :back onto the rear win-
dow. Problems with the windscreen wipers
The windscreen wipers are obstructed Leaves or snow, for example, may be
obstructing the windscreen wiper movement.
The wiper motor has been deactivated.
X
For safety reasons, you should remov ethe
key from the ignition lock.
or
X Switc hoff th eengine using the Start/Stop
butto nand ope nthe driver's door.
X Remove the cause of the obstruction.
X Switc hthe windscreen wiper sback on.
The windscreen wipers are inoperative The windscreen wiper drive is malfunctioning.
X
Select another wiper spee donthe combi-
nation switch.
X Hav ethe windscreen wiper schecked at a
qualified specialist workshop.
Th es pra ynozzles are misaligned The windscreen washer fluid from the spray
nozzles no longer hits the centre of the wind-
screen. The spray nozzles are misaligned.
X Have the spray nozzles adjusted at aquali-
fied specialist workshop. 118
Windscreen wipersLights and windscreen wipers

Usefu
linfor mati on
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviation sare possible .Please
not ethat your vehicle ma ynot be equipped
with all featur es described. This also
applies to safety-releva ntsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 24).Ove
rview of climat econtro lsystems Im
portan tsafety notes G
WA
RNING
Observ ethe setting srecommended on the
following pages. Otherwise ,the wind ows
coul dmist up. This may obstruct your view of
the traffic situation and, as aresult ,you may
cause an accident.
THERMATI Cautomatic climat econtrol/
THERMOTRON ICautomatic climat econtrol
controls the tempera tureand the humidit yof
the vehicle interior and filters out undesirable
subs tances fro mthe air.
THERMATIC/T HERMOTRONIC automatic cli-
mate control is only operational when the
engine is running. 9
Optimum operatio nisonly
achieved if you drive with the sid ewindows
and sliding sunroof/panoram asliding sun-
roof closed.
i Ventilate the vehicle for abriefp eriod
during war mweather ,e.g. using the con-
venience opening feature (Y page84). This
wil lspeed up the cooling process and the
desired vehicle interior temperatur ewill be
reached more quickly.
i The integrated filter can filter out most
particles of dust and completely filter sout pollen.
Aclogged filter reduces the amount
of air supplied to the vehicle interior .For
this reason, you should always observ ethe
interval for replacing the filter ,which is
specifie dinthe Servic eBooklet .Asit
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Servic eBooklet.
9 The residual heat function can only be activated/deactivate dwhen the ignition is switched off. 120
Overview of climat
econtrol systemsClimate control

Q
Switche srear-com partment climate contro lon/of f(Y page 124)
R Reduces the airflow (Y page 127)Notes on using THERMOTRONIC auto-
matic climat econtrol
The following contains notes and recommen-
dations on optimum operation of
THERMO TRONIC automatic climate contro l.
R Activate climate control using the Ãand
¿ buttons .The indicator lamps in the
à and¿ buttons light up.
R In automatic mode, you can also use the
ñ button to set aclimate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIU Mlevel is rec ommended.
R Set th etemperature to 22 †.
R Only use the demisting function briefly,
unt ilthe windscreen is clear again.
R Only us ethe air-recircu lation mod ebriefly,
e.g .ift here ar eunpleasant outsid eodours
or when in atunnel. The window scould
otherwise mist up as ,inair-recirculation
mode, no fresh air is drawn int othe vehicle.
R Use the ZON Efunction to adopt the tem-
perature settings on the driver' sside for
the front-passenger side and the rear com-
partment as well. The indicator lamp in the
á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The resid-
ual heat function can only be activated or
deactivated with the ignition switched off. Operating the climat
econtrol system Switching climat
econtrol on/off
Importan tinfor mation i
Whe nclimate contro lisswitched off, the
air supply and air circulation are also
switched off. Only select this setting briefly. Otherwise, the windows may mist
up.
i Switc honc limatecontr ol primaril yusing
the à button( Ypage 12 5).
In th erear compartmen t,you can also switch
climat econtr olon and off using the Ãand
^ buttons.
Switching on/off X
Tur nthe key to position 2in the igni tion
lock.
X To switch on: press theÃbutton.
The indicator lam pintheà button lights
up. Air flow and air distribution ar eset to
automatic mode.
or
X Press button ^.
The indicator lam pinthe^ button goes
out. The previously selec teds ettings come
int oe ffect again.
X To switch off: press the^button.
Th eindicator lamp in the ^button lights
up. Activating/deactiv
ating the cooling
with air deh umidification function
Importan tinfor mation The cooling with air dehumidification function
is only availabl
ewhen the engin eisrunning.
The air inside the vehicle is cooled and dehu-
midified according to the temperature selec-
ted. G
WARNING
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up 124
Operating th
eclimat econtrol systemClimat econtrol

more quickly
.This ma yprevent you from
observing th etraffic conditions, thereby caus-
ing an accident.
Condensation may dri pfrom th eunders ideof
the vehicl ewhen cooling mode is active .This
is norma land not asign that there is amal-
function.
i The cooling with air dehumidification
function uses refrigerant R134a. This cool-
ant does not contain chlorofluorocarbons,
and therefore does not damage the ozone
layer.
Switching on/off X
To activate: press the¿/Á button.
The indicator lamp in the ¿/Ábut-
ton lights up.
X To deactivate: press the¿/Á but-
ton.
The indicator lamp in the ¿/Ábut-
ton goes out. The cooling with air dehumid-
ification function has adelayed switch-off
feature.
Problems with the cooling with air
dehumidification function When you press the
¿/Ábutton ,the
indicator lam pint he button fla shes three
times or remains off .You can no longer switch
on the cooling with air dehumidification func-
tion.
X Consult aqualified specialist worksho p.Setting climat
econt rol to automatic
mode
In automatic mode, the set temperature is
maintained automatically at aconstant leve l.
The system automatically regulates the tem-
peratur eofthe dispensed air ,the airflow and
the air distribution.
Automatic mode will achi eveo ptimal opera-
tion if cooling with air dehumidification is also activated
.Ifdesired, coolin gwith air dehu-
midification can be deactiva ted.
In the rear compartment ,you can also switch
climate control for the rea rseats to automatic
mode using the Ãbutton.
X Turn the key to position 2in the ignition
lock.
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lam pintheà button lights
up. Automati cair distribution and airflow
are activated.
i THERMOTRONIC automatic climate con-
trol: when automatic mode is activated, you
can select aclimate mode setting
(Y page 125).
X To switch off: press the_button.
or
X Press the IorK button.
The indicator lamp in the Ãbutton goes
out. Setting the climat
emode
This function is only available with the
THERMOTRONIC automatic climat econtrol.
The climate control settings ar eespecially
effectiv eathigh temperatures.
You can select the following climat econtrol
settings in automatic mode:
FOCU Shigh airflow that is set slightly
cooler
MEDIU Mmedium airflow, standard setting
DI FFUS Elow airflow that is set slightly
warmer and with alower rate of
airflow
X Tur nthe key to position 2in the ignition
lock.
X Press the Ãbutton.
X Press the ñbutton repeatedly until the
desired climate mode appears in the dis-
play. Operating th
eclimat econtrol system
125Climate control Z

Setting th
etemperature
THERMATIC automatic climate control Differen
ttemperatures can be set for the
driver' sand front-passenger sides.
X Turn the key to position 2in the ignition
lock.
X To increase/reduce: turn controls:or
B clockwise or anti-clockwise
(Y pag e121).
Onl ychange the temperature setti ngin
small increments. Star tat2 2†.
THERMOTRONIC automatic climate
control THERMOTRONIC automatic climate control zones
You can select different temperature setti ngs
fo rt he driver's and front-passenger sides as
well as for the rea rcompartment.
X Tur nthe key to position 2in the ignition
lock.
X To increase/reduce th etemperature in
the front: turn controls :and Bclock-
wise or anti-clockwise (Y page 123).
Only change the temperatur esettin gin
small increments. Star tat2 2†.
X To increase/reduce the temperature in
the rear compartment using the front
contro lpanel: press the ábutton.
Th eindicato rlamp in the ábutton goes
out. X
Turn control :clockwise or anti-clockwise
(Y page 123).
Only change the temperature setting in
small increments. Start at 22 †.
The temperature setting for the driver's
side is adopted for the rear compartment
and the front-passenger side.
X To increase/decrease the rear compart-
ment temperature using the rear con-
trol panel: turn control Mclockwise or
anti-clockwise on the rear control panel
(Y page 123).
Only change the temperature setting in
small increments. Start at 22 †. Setting the air distribution
Front control unit:
P Directsair through the centre vents.
O Directsthe airflo wthrough the foot-
well air ven ts.
S Directsthe airflo wthrough the cen tre
and footwell vents.
¯ Directsthe airflo wthrough the demis-
ter ven ts.
b Directsthe airflo wthrough the demis-
ter and cen tre vents.
a Directs the airflow throug hthe foot-
well and demister ven ts.
_ Directsthe airflo wthrough the demis-
ter ,centre and footwell air ven ts.
Rear control panel:
M Directsthe airflo wthrough the rear
cen treand rear side air vents.
O Directsthe airflo wthrough the foot-
well air ven ts.
i Using the rear control panel, you can also
activate both air distribution positions
simultaneously .Inordertodot his, press
both air distribution buttons. The air is then
routed through all rea rair vents.
i Regardles softhe air distributio nsetting,
airflow is always directed through the side 126
Operating th
eclimat econtrol systemClimat econtrol