Page 176 of 585

175 Controls in detail
Control system
Press buttonj ork repeatedly
until the message
Compass setting
Zone
appears in the multifunction
display.
The selection marker is on the current
setting.
Press buttonæ orç to set the
respective compass zone.
For information on how to call up the
compass, see “Compass” (
page 321).Compass calibration
This function is not available if your vehicle
is equipped with the COMAND system and
navigation module*.
In order to calibrate the compass properly,
mind the following:
Calibrate the compass in open terrain.
Nearby buildings, bridges, power lines
and large antenna masts, for example,
could impair compass calibration.
Switch off electrical consumers (e.g.
climate control, windshield wipers, or
rear window defroster).
Close all doors and the tailgate.
Start the engine (
page 54).
Press buttonæ orç to move
the selection marker to the
Vehicle
submenu.
Press buttonj ork repeatedly
until the message Compass Calibration
appears in the
multifunction display.
The selection marker is on setting
switched off
.
Press buttonæ to set the selection
marker to
Start
.
The following message appears in the
multifunction display:
Compass Calibration active
Please drive in a full circle
i
Make sure you are in area where you can
drive a full circle with your vehicle without dis-
turbing traffic in order to calibrate the compass.
Page 201 of 585
200 Controls in detailGood visibilityFor information on the windshield wipers,
see “Windshield wipers” (
page 60).
Headlamp cleaning system*
The button is located on the left side of the
dashboard.
1Headlamp washer button
Switch on the ignition (
page 40).
Press button1.
The headlamps are cleaned with a
high-pressure water jet.
For information on filling up the washer
reservoir, see “Windshield/rear window
washer system and headlamp cleaning
system*” (
page 363).
Rear view mirrors
For more information on setting the rear
view mirrors, see “Mirrors” (
page 49).
Interior rear view mirror, antiglare
position
1Lever
Tilt the mirror to the antiglare position
by moving lever1 towards the wind-
shield.
The interior rear view mirror is dimmed.
i
The headlamps will automatically be
cleaned when you have
switched on the headlamps
and
operated the windshield wipers with wind-
shield washer fluid fifteen times
When you switch off the ignition, the counter
resets.
Page 202 of 585

201 Controls in detail
Good visibility
Auto-dimming rear view mirrors*
The reflection brightness of the exterior
rear view mirror on the driver’s side and
the interior rear view mirror will respond
automatically to glare when
the ignition is switched on
and
incoming light from headlamps falls on
the sensor in the interior rear view
mirror
The rear view mirror will not react if
the automatic transmission is set to
positionR
the interior lighting is turned on
Warning!
G
The auto-dimming function does not react if
incoming light is not aimed directly at sen-
sors in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, when transporting cargo
which covers the rear window.
Light hitting the mirror(s) at certain angles
(incident light) could blind you. As a result,
you may not be able to observe traffic con-
ditions and could cause an accident.Warning!
G
In case of an accident, liquid electrolyte may
escape from the mirror housing if the mirror
glass breaks.
Electrolyte has an irritating effect. Do not
allow the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.!
Electrolyte liquid coming into contact with
the vehicle paint finish can be completely
removed only while in the liquid state and by
applying plenty of water.
Warning!
G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your
interior rear view mirror or glance over your
shoulder before changing lanes.
Page 205 of 585
204 Controls in detailGood visibilityGlare through the windshield
Swing sun visor1 down.
Make sure sun visor1 is properly en-
gaged in mounting7.
When you do not experience glare any-
more, swing sun visor1 up.
Vanity mirror
Swing sun visor1 down.
Flip up cover4 to access vanity
mirror5.
Vanity mirror lamp3 comes on.
After using vanity mirror5, flip down
cover4.
Swing sun visor1 up.Glare through a side window
1Sun visor
2Additional sun visor*
Swing sun visor1 down.
Disengage sun visor1 from
mounting7 (
page 203).
Pivot sun visor1 to the side.
Adjust sun visor1 by pushing or pull-
ing in the direction of arrows.
Swing down additional sun visor*2
when you experience additional glare
through the windshield.
!
To avoid damage to vanity mirror cover4
(
page 203), make sure it is closed before
pivoting sun visor1 to the side.
Page 206 of 585

205 Controls in detail
Good visibility
Rear window defroster
The rear window defroster uses a large
amount of power. To keep battery drain to
a minimum, switch off the defroster as
soon as the rear window is clear. The de-
froster is automatically deactivated after
approximately 6 to 17 minutes of
operation depending on the outside tem-
perature.
Switch on the ignition (
page 40).Activating
Press button1 on the climate con-
trol panel (
page 208) or the automat-
ic climate control* panel (
page 222).
The indicator lamp on the button
comes on.
Deactivating
Press button1 once more.
The indicator lamp on the button goes
out.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.
!
If the rear window defroster switches off too
soon and the indicator lamp starts flashing, too
many electrical consumers are operating simul-
taneously and there is insufficient voltage in the
battery. The system responds automatically by
switching the rear window defroster off.
As soon as the battery has sufficient voltage, the
rear window defroster switches back on auto-
matically.
Page 209 of 585
208 Controls in detailClimate control
1
Temperature control, left
2
Air distribution and air volume
(automatic, manual)
3
Front defroster
0USA only
PCanada only
4
Increasing air volume
5
Air distribution (directs air through
the windshield and side air vents)
6
Rear climate control* on/off
Air supply for rear passenger
compartment on/off
:USA only
7
Temperature control, right
8
AC cooling on/off
Residual heat/ventilation
9
Air distribution (directs air through
center and side air vents)
a
Air distribution (directs air through
the footwells and side air vents)
b
Air volume display
c
Decreasing air volume
d
Rear window defroster
1USA only
FCanada only
e
Air recirculation
f
Interior temperature sensor
g
Climate control on/off
Page 210 of 585

209 Controls in detail
Climate control
The climate control is operational whenev-
er the engine is running. You can operate
the climate control system in either the
automatic or manual mode. The system
cools or heats the interior depending on
the selected interior temperature and the
current outside temperature.Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.
The air conditioning will not engage (no
cooling) if the A/C mode is deactivated
(
page 216).
Warning!
G
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature).
This may cause burns or frostbite to unpro-
tected skin in the immediate area of the air
vents.
Always keep sufficient distance between un-
protected parts of the body and the air
vents. If necessary, use the air distribution
controls (
page 208) to direct the air to air
vents in the vehicle interior that are not in
the immediate area of unprotected skin.
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
i
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before its
scheduled interval. A clogged filter will reduce
the air volume to the interior.
If the vehicle interior is hot, ventilate the interior
before driving off, see “Summer opening fea-
ture” (page 239). The climate control will then
adjust the interior temperature to the set value
much faster.
Keep the air intake grille in front of the wind-
shield free of snow and debris.
Page 211 of 585

210 Controls in detailClimate controlDeactivating the climate control system
Deactivating
Press button´ (
page 208).
The indicator lamp on the button
comes on.Reactivating
Press buttonU (
page 208).
Operating the climate control system
in automatic modeActivating
Press buttonU (
page 208) while
the engine is running.
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.
Use temperature controls1 and7
(page 208) to separately adjust the
air temperature on each side of the
passenger compartment.
The interior air temperature is adjusted
automatically.
Warning!
G
When the climate control system is
switched off, the outside air supply and cir-
culation are also switched off. Only choose
this settings for a short time. Otherwise the
windows could fog up, impairing visibility
and endangering you and others.
i
You can also press button´
(
page 208) on the climate control panel.
If you press button0 (
page 208) to
reactivate the climate control system, the
defrosting mode is activated.
i
When operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air distri-
bution.
In automatic mode, cooling with dehumidify is
switched on. This function can be switched off if
necessary (
page 216).
i
The settings for the passenger side are also
used for the rear passenger compartment.