Got around to replacing my cabin air filter today. Audi manual calls it a pollen filter. Wasn't having any issues, just a long overdue maintenance item.
It is an item that should be checked off a list at some time I now believe.
My fairly low mileage(less than 60K miles) 2006 A3 is not garage kept, but parked under a carport when at home. Plenty of trees in the community. I know I have never replaced it and not sure if it has been touched at any previous dealer service.
Here is what it looked like after the bigger debris fell out of the slot & off the paper.



Just a reminder for anyone having thought about the filter but never gotten around to it.