- Mercedes-Benz C-Class: How to Replace Cabin Air Filter
Step by step instructions for do-it-yourself repairs
Browse all: Interior Guides
The $150 cabin air filter...firsthand account of watching the stealership at work...
Based on experience, I have come to the conclusion that the engine air filter needs to be changed once per year and the cabin air filter twice per year, otherwise the filters become clogged.
I drive about 6000 miles per year.
LE: Also, I have experimented both charcoal-covered and simple cabin air filters and I didn't notice any difference in efficiency or removal of unpleasant odours. I pretty much think the charcoal thing is a small "scam".
And there is one more thing: for my car, I have bought both OEM (Ford - Motorcraft) and aftermarket (Mann) cabin air filters. The funny thing is that the OEM filter has a rigid plastic frame while the Mann after-market option has a flimsy cardboard frame. The OEM filter is only about 25 % more expensive but it fits better and there is less risk of it breaking or deforming at installation time.
Last edited by danielardelian; Dec 10, 2010 at 04:49 AM.
Engine air filter maint manual calls for the set of two ($33) every four years.
Conditions needing shorter periods noted.
If you need to change your cabin air filter twice a year, move or you will die sooner than the car.





