I just recently replaced my cabin air filter, and for those who have read my posts, I have always held in high regard Wix filters. I currently have 37,286 miles on my 2006, and I was well overdue for the filter replacement. After pulling down the glovebox and removing the filter, I was thoroughly disgusted. The filter was ripped on three of the pleats and completely blackened with junk. If you have not replaced the cabin air filter, it's a simple 5 minute step, inexpensive and will have you gagging with the junk that's on there. By the way, my dealer recommended changing the filter 17,000 miles ago...whoops.