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Home >> Mercedes Benz >> 1994 >> C220 >> Repair and Diagnosis >> External Pages >> Different car >> Section 80 (Climate Control - 140 Chassis) >> Basic Knowledge >> Rear vent, location/function - GF83.10-P-2105 >> Rear vent, function - GF83.10-P-2105-01A

Rear vent, function - GF83.10-P-2105-01A

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Function 

Louvers in the rear vent open as a result of the pressure from the air flowing through the vehicle allowing it to flow out.

If a vacuum is present in the vehicle due to a window or the sliding roof being open while driving, the louvers close automatically from the force of gravity. This prevents exhaust gases, dust and moisture from being sucked in.