Originally Posted by raptor1956
I don't have my 2012 Ti yet but I had to replace the cabin filter on my Matrix not too long ago -- there was very little air coming out of the vents with the AC on and at first I thought the heat exchanger ha frozen over. However, after replacing the filter the AC was just fine.
Depending on how dusty it is where you drive you might go a few years or less than half a year before the filter is clogged to the point of choking off air flow...
The Matrix/Vibe one was easy! 1) Remove glovebox (1 screw involved) 2) unlatch filter door 3) remove!
I can't imagine how much the dealer is going to charge to replace the Focus air filter... And yes, they do get clogged up.