ACC cabin filter replacement

My 99 323IS which I've had since new has about 95K miles on it and I was going to change the "ACC cabin filter" but I dont know where it's located. Appreciate it if can anybody tell me where its at and what the recommended replacement interval is.
Thanks,
Gary

My 99 323IS which I've had since new has about 95K miles on it and I was going to change the "ACC cabin filter" but I dont know where it's located. Appreciate it if can anybody tell me where its at and what the recommended replacement interval is.
Thanks,
Gary

Hope you are flexible! You get to it from underneath the pass side glove box behind the center console, towards the firewall. You have to drop the fake panel and side panel. The filters are usually in stock at most dealers. I replaced mine every summer (thanks to FL humidity it needed it more often). They are a very tight fit and the factory original one had been purposely broken to be able to fit it in...you will see what I mean when you do it, or have it done. I used an old toothbrush taped to a ruler to get in there and pull out little dead bugs, debris, etc before replacing. Overall took 1/2 an hour. Good luck.

thanks!! sounds messy too as its never been changed.