R8 Quattro Coupe (423) V8-4.2L (BYH) (2011)
Cabin Air Filter: Service and Repair
Dust and Pollen Filter
Special tools, testers and auxiliary items required
‹› Suction nozzle with brush (VAS 6288)
‹› Standard vacuum cleaner
‹› The dust and pollen filter consists of 2 identical filter inserts. Pay attention to the correct position when installing (the filter air flow direction is
marked with arrows).
‹› Clean the air intake area after replacing the dust and pollen filter; pay particular attention to the area under the air intake unit.
‹› Clean the dust and pollen filter installation shaft in the A/C unit before installing the new filter.
‹› There are different versions of the dust and pollen filter. Each filter version has its own air resistance. The control characteristic for activating the
Fresh Air Blow (V2) is determined in the Climatronic Control Module (J255).
‹› The filter element with the activated charcoal insert (as an integrated odor filter) is installed on all vehicles. There is no Air Quality Sensor (G238)
installed on these vehicles.
Remove the passenger side instrument panel cover.
Loosen the passenger side relay carrier and fuse panel base plate and lay it aside.
Remove the subwoofer.
Press the wiring harness to the side.
‹› Depending on the model of the vehicle, it may be necessary to loosen the wiring harness located in the area of the dust and pollen filter installation
compartment in order to press it to the side.
Cover the floor mat under the A/C unit dust and pollen filter shaft with paper.