Really? I completely disagree...this is the cabin air filter...the air you breath...and the filter becomes quite nasty after 15k or once a year. My 09 manual states change at every oil/inspection service..which is roughly every 15k miles/annually in BMWs interval counter.
Originally Posted by vern
No need to change it that often.50,000- 60,000 miles is OK.
You are right though with the engine air filter.
Last edited by x3brian; 01-13-2013 at 10:22 AM.