Did mine yesterday. If you suffer from allergies, emphysema, other lung or nasal ailments, get a smoker friend to do this for you. Vehicle is A4 Jetta (TDi, but gas car would be the same)
1. Lift hood.
2. On left side (right of the N.A. car from the drivers position) near to the hood hinge is a strip with 4 torx screws - remove. This piece is a sort of "water catcher drawer".
3. Also remove (pull up) about half the weatherstrip for the rear hood edge.
4. You must now remove the "water catcher". This requires bending up the plastic strip along the lower edge of the windshield.
5. Also observe the fitting of the drawer near the windshield hinge area - it is very trickey to replace.
6. Once out of the way, you can see the pollen filter. Unclip fron edge, lift up and pull out.
7. I used high pressure air, and blew all of the pollen back into the air where it belongs.
8. Replace filter - rear has tabs to fit into slots - and press down front to snap in.
9. The scary part - put back in the "water catcher drawer. You will need to bend up the plastic quite a bit to fit.
10. Replace the screws and the weatherstrip.
BTW - there are a few TSB's that show diagrams of this area as well. IF I find a good one I will update this post.
Here we go: TSB C01-99-06 pictures N92-0223 and N92-0117 detail this area.
[This message has been edited by Jimmy (edited August 02, 1999).]