Mercedes-Benz-W212-instrukcja-obslugi

142 Operating the control systems
Climate control
or
3-zone automatic climate control: press
switch F or J up or down (Y page 135).
X Dual-zone automatic climate control:
press switch G up or down (Y page 133).
3-zone automatic climate control: press
switch H up or down (Y page 135).
Maximum cooling MAX COOL
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
When you activate MAX COOL, climate
control switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
X To activate: press the Ù button.
The indicator lamp above the button lights
up.
X To deactivate: press the Ù button
again.
The indicator lamp goes out. The previously
selected settings come into effect again.
Defrosting the windows
Windows fogged up on the inside
X Activate the "cooling with air
dehumidification" function ¿.
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the defrosting function (Y page 141).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
X Switch on the windshield wipers.
X Dual-zone automatic climate control:
press switch F up or down (Y page 133)
until the P or O symbol appears in
the display.
X 3-zone automatic climate control: press
switch I up or down (Y page 135) until the
P or O symbol appears in the
display.
i You should only select this setting until
the windshield is clear again.
Rear window heating
Activating/deactivating
G Warning
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
The rear window heating has a high current
draw. You should therefore switch it off as
soon as the window is clear as it only switches
off automatically after several minutes.
If the battery voltage is too low, the rear
window heating may switch off.
X Turn the SmartKey to position 2 in the
ignition lock.
X Press the ¤ button.
The indicator lamp above the ¤ button
lights up or goes out.
Problems with the rear window heating
The rear window heating has deactivated
itself prematurely or cannot be activated.
X Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window heating is activated again
automatically.