Move slider (B) to 
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This function is particularly useful when the outside air is heavily polluted (in a traffic jam, tunnel, etc.). However, it is better not to use it for long periods, especially if there are several people in the car.
IMPORTANT The inside air recirculation system makes it possible to reach the required “heating” or “cooling” conditions faster. Do not use the air recirculation function on rainy/cold days as it would considerably increase the possibility of the windows misting inside.
See also:
In the 50 United States and Washington, D.C.
If you believe that your vehicle has a defect that could cause a crash or cause
injury or death, you should immediately inform the National Highway Traffic Safety
Administration (NHTSA) in additio ...
Engine
...
Capacities
(▲) For particularly hard climate conditions, we recommend use of a 60% PARAFLU
UP and 40% demineralized water mixture.
(❒) For particularly cold temperatures use SELENIA MULTIPOWE ...