Change your cabin filter!!!
You should change your cabin dust filter on the W202 cars every 10,000 miles or so. Why?
1. You are breathing the air that passes through that filter.
2. There is thought that clean air will also extend the life of your AC evaporator.
It is a simple job taking five minutes (I can do one in about 2 minutes now...) and the filter is not very expensive either.
(If the filter is clogged, the air you breathe won't be more contaminated, because there is no bypass like in an oil filter.)
-s-
I think the new filters have charcoal in them? it was significantly heavier than the one i pulled out and one of the sides looked like charcoal bits weaved into the filter.
here are my pics

enjoy black lung disease :p



