grip1968 wrote:I know this is a dumb question but were it the cabin air filter located on the 1997 q45??
There are no dumb questions, but there are questions that can be easily answered with a little research. If you have not already downloaded the factory service manual (FSM) then do so and it will save you a lot of time and headache.
http://www.phatg20.com is the link. I heard the 97 fsm is incomplete, so just download the 98 and you will be fine.
The cabin air filters (there are two of them) are located behind the glovebox. You will need to remove several pieces before removing the glovebox screws: including the passenger carpeted kick panel and plastic panel directly underneath the glovebox. Be careful when removing these two pieces or you will break off the clips. Also, you have to unplug the passenger dash airbag, so make sure you unplug your negative lead on your battery terminal to prevent blowing the airbag when you plug in the wiring harness.
Once you get the glovebox out of the way, you will see the filters stacked one on top of the other held in place by metal spring clips. Hold a rag, etc over the clips to keep them from shooting out and hitting you in the eye -- anr/or to prevent loosing one and then slide out the filters. Hope you ate something or you will vomit when you see how black they are if they haven't been changed in years. Another tip if you have access to an air compressor, while the filters are out, take compressed air and blow out the cowl vent intakes (lower vents along the windshield) and you should get some leaves and other crap out of the venting before you install your new filters.
For members out there looking for reasonably priced replacements, there are a couple of sellers on Ebay selling a pair for about $10 instead of buying them from the dealer for about $30 each filter even at a discount. I bought a set and they are decent quality. Plus, the fsm recommends you change them once a year anyway, so for about $14 shipped, you can't go wrong.
Good luck.
Ted