Page 205 of 514
204 Controls in detailGood visibilityRoller sunblind in the rear doors*
Pull the roller sunblind out using the
hooks.
Attach the hooks at the top.
Rear window defroster
The rear window defroster uses a large
amount of power. To keep the battery
drain to a minimum, switch off the
defroster as soon as the rear window is
clear. The defroster is automatically
deactivated after approximately 6 to
17 minutes of operation depending on the
outside temperature.
Switch on the ignition (
page 37).Activating
Press button1(
page 208) or
(
page 224) or buttonF
(page 209) or (
page 225) on the
respective climate control panel.
The indicator lamp on the button
comes on.
!
Always guide the sunblind by hand. Do not
let it snap back, as the retractor could be dam-
aged.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before
driving. Visibility could otherwise be
impaired, endangering you and others.
Page 206 of 514
205 Controls in detail
Good visibility
Deactivating
Press buttonF or1 again.
The indicator lamp on the button goes
out.
!
If the rear window defroster switches off too
soon and the indicator lamp starts flashing, this
means that too many electrical consumers are
operating simultaneously and there is insuffi-
cient voltage in the battery. The system re-
sponds automatically by deactivating the rear
window defroster.
As soon as the battery has sufficient voltage, the
rear window defroster automatically turns itself
back on.
Page 209 of 514
208 Controls in detailDual-zone automatic climate controlUSA only1
Temperature control, driver’s side
2
Front defroster
3
Increasing air volume
4
Display
5
Air distribution
6
Rear window defroster
7
Temperature control, passenger side
8
MAX COOL on/off
9
AC cooling on/off
a
Climate control on/off
b
Decreasing air volume
c
Air recirculation
d
Air distribution and air volume
(automatic, manual)
Page 210 of 514
209 Controls in detail
Dual-zone automatic climate control
Canada only1
Temperature control, driver’s side
2
Front defroster
3
Increasing air volume
4
Display
5
Air distribution
6
Rear window defroster
7
Temperature control, passenger side
8
Residual heat/ventilation
9
AC cooling on/off
a
Climate control on/off
b
Decreasing air volume
c
Air recirculation
d
Air distribution and air volume
(automatic, manual)
Page 211 of 514

210 Controls in detailDual-zone automatic climate controlThe climate control is operational whenev-
er the engine is running. You can operate
the climate control system in either the au-
tomatic or manual mode. The system cools
or heats the interior depending on the se-
lected interior temperature and the cur-
rent 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 218).
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 be-
tween unprotected parts of the body and the
air vents. If necessary, use the air distribu-
tion control (
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 241). 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.
Do not obstruct air flow by placing objects on the
air flow-through exhaust slots below the rear
window.
Page 212 of 514

211 Controls in detail
Dual-zone automatic climate control
Deactivating the climate control system
Deactivating
Press button´ (
page 208) or
(
page 209).
Reactivating
Make sure the ignition is switched on.
Press button´ (
page 208) or
(
page 209) again.
The previous settings are once again in
effect.Operating the climate control system
in automatic modeActivating
Press buttonU (
page 208) or
(
page 209) while the engine is run-
ning.
The indicators for automatic air volume
and air distribution in display4
(page 208) or (
page 209) come
on. Air volume and air distribution are
automatically controlled
Use temperature controls1 and7
(page 208) or (
page 209) to sepa-
rately adjust the air temperature on
each side of the passenger compart-
ment.
The temperature of the vehicle interior
is adjusted automatically.
Warning!
G
When the climate control is switched off, the
outside air supply and circulation are also
switched off. Only choose this setting for a
short time. Otherwise the windows could
fog up, impairing visibility and endangering
you and others.
i
To switch the system on, you can also press
another button, with the exception of 1 or
F.
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.Warning!
G
If you switch off the cooling function the
windows can fog up more quickly. Window
fogging may impair visibility and endanger
you and others.
Page 215 of 514

214 Controls in detailDual-zone automatic climate controlClosing the cockpit air vent (Canada
only) and the center air vents
Turn thumbwheels1 and5
(page 206) downward.
The cockpit air vent3 and the center
air vents2 and4 are closed.
Opening the side air vents
Turn thumbwheels8 anda
(page 206) upward.
The side air vents7 andb are open.
Closing the side air vents
Turn thumbwheels8 anda
(page 206) downward.
The side air vents7 andb are
closed.
Adjusting air volume
Nine blower speeds are available.
Press button to decrease
orQ to increase air volume
(page 208) or (
page 209) to the
desired level.
The
AUTO
indicator for air volume in the
display4 (
page 208) or
(
page 209) goes out.The automatic
function for air volume is switched off,
and air volume is controlled according
to the desired setting.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
windows.
i
The air distribution continues to be con-
trolled according to the indicator in the
display4.
i
Keep this setting selected only until the
windshield or the windows are clear again.
Page 216 of 514

215 Controls in detail
Dual-zone automatic climate control
Activating
Press button0 or
P(
page 208) or (
page 209).
The indicator lamp on the button
comes on.
The air conditioning switches
automatically to the following func-
tions:
cooling on to dehumidify
maximum blowing and heating
power (depends on cooling
temperature)
air flows onto the windshield and
the front windows
the air recirculation mode is
switched offDeactivating
Press button0 or
P(
page 208) or (
page 209)
again.
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.Windshield fogged on the outside
Switch the windshield wipers on
(page 58).
If the automatic air distribution is switched
off:
Turn air distribution control5 to a
or Y (
page 208) or (
page 209).
i
If you have switched on the defrost function
using the0 or Pbutton, you cannot
make any other settings.
i
The cooling remains switched on.
i
Keep this setting selected only until the
windshield is clear again.