Problems with the rear window defroster
Problem Possible causes/consequences and
M
MSolutions The rear window
defroster has
deactivated
prematurely or cannot
be activated. The on-board voltage is too low because too many electrical
consumers are switched on.
X
Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again. Activating/deactivating air-
recirculation mode
General notes You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up.
Activating/deactivating X
Select key position 2with the Start/Stop
button (Y page 119).
X To activate: press thegbutton.
The indicator lamp in the gbutton lights
up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. When air-recirculation mode
is activated automatically, the indicator
lamp in the gbutton is not lit.
Outside air is added after about 30
minutes.
X To deactivate: press thegbutton.
The indicator lamp in the gbutton goes
out. i
Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡(5 †) if the "Cooling
with air dehumidification" function is
activated Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air
outlets. If necessary, redirect the airflow to
another area of the vehicle interior. Setting the air vents
113Climate control Z
Activating/deactivating surround
lighting and exterior lighting delayed
switch-off
The Locator Locator Lighting:
Lighting: function allows you
to set whether the exterior lighting should
come on when it is dark:
R for 40 seconds after unlocking the vehicle
with the key.
The exterior lighting switches off if you
open the driver’s door.
R for 15 seconds after switching off the
engine and closing the doors.
If the engine is switched off and no doors
are opened, or if an open door is not closed,
the exterior lighting goes out after
60 seconds.
If you activate the Locator Lighting:
Locator Lighting:
function, the following light up:
R the parking lamps
R the low-beam headlamps
R the license plate lamp
R the surround lighting in the exterior mirrors
X Press the =or; button on the
steering wheel to select the Settings
Settings
menu.
X Press the :or9 button to select the
LIGHTS
LIGHTS submenu.
X Press ato confirm.
X Press the :or9 button to select the
Locator Lighting:
Locator Lighting: function.
You will see the selected setting: Enabled Enabled
or Disabled
Disabled .
X Press the abutton to save the setting.
Deactivating the delayed switch-off
temporarily:
X Select key position 0with the Start/Stop
button before leaving the vehicle.
X Select key position 2and then key position
0 again with the Start/Stop button
The delayed shut-off is deactivated.
The delayed shut-off is reactivated the next
time you start the engine. Activating/deactivating the interior
lighting delayed switch-off
If you select key position
0with the Start/
Stop button when the Light. delay
Light. delay
function is activated, the interior lighting
lights up for approximately 20 seconds if it is
dark.
X Press the =or; button on the
steering wheel to select the Settings Settings
menu.
X Press the :or9 button to select the
Light
Light submenu.
X Press ato confirm.
X Press the :or9 button to select the
Light. delay
Light. delay function.
You will see the selected setting: on
onor
off
off .
X Press the abutton to save the setting.
Vehicle Activating/deactivating the automatic
door locking mechanism
If you select the
Automatic Door Lock: Automatic Door Lock:
function, the vehicle is centrally locked above
a speed of around 9 mph(15 km/h).
i For further information on the automatic
locking feature, see (Y page 70).
X Press the =or; button on the
steering wheel to select the Settings Settings
menu.
X Press the :or9 button to select the
Vehicle
Vehicle submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Automatic door locks
Automatic door locks function.
You will see the selected setting: Enabled Enabled
or Disabled
Disabled .
X Press the abutton to save the setting. Menus and submenus
159On-board computer and displays Z
