Where is the cabin air filter located in the Audi A4L?

[LaMaggie]

Audi A4L has cabin air filters at both the air intake and the blower. There are two methods to replace the cabin air filters in an Audi A4L: 1. Replacing the engine compartment cabin air filter: The intake air filter is located at the lower left of the engine compartment's cover plate. First remove the foam on the far left, then lift the sealing strip to raise the cover plate and expose the cabin air filter. The filter is housed in a rectangular frame; open the frame's fixing clips to remove the entire assembly. Install the new cabin air filter and clean the air intake duct. Reassemble in reverse order. 2. Replacing the blower cabin air filter: The blower filter is located above the front passenger footwell, covered by a trim panel secured with plastic screws that can be unscrewed by hand. After removing the panel, you'll see a long cover; press the clip on the right side of the cover to remove it. Pull out the old filter and install the new one. Reassemble in reverse order.