A8 Quattro Sedan V8-4.2L (BVJ) (2008)
![background image](/audi/a8_quattro_sedan/v8-4.2l_(bvj)/Page-2557003.png)
recirculating/fresh air flap position must change, for example when driving through a cloud of diesel exhaust.
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Also note descriptions, refer to => [ Dust and Pollen Filter ] See: Cabin Air Filter/Description and Operation and => [ Air Quality Sensor Function
] See: Description and Operation Air Quality Sensor (G238).