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171Automatic climate control
Technical
data
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Windshield fogged on the outside
Switch on the windshield wiper.
Press on both U buttons until they click in.
The h, j and k symbols will no longer be
visible.
Air recirculation
Select air recirculation:
The indicator lamp in the O button is off.
Press button O briefly. The indicator lamp in the
button illuminates.
To switch off the air recirculation:
The indicator lamp in the O button is on.
Press button O briefly. The indicator lamp in the
button will go out.
The system automatically switches from air
recirculation to fresh air:
• after 30 minutes if the outside temperature is above
about 40°F(5°C),
• after 5 minutes if the outside temperature is below
about 40°F(5°C),
• after 5 minutes if economy mode S is selected.
The system switches automatically to air recirculation at
high outside temperatures. A quantity of outside air is
added after about 30 minutes.
Important!
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.