My 1994 C-220 doesn't seem to circulate much air anymore. The fan motor on high sounds fine but the air coming from the vents isn't enough to cool the interior. Does MB use a cabin filter that needs to be cleaned/changed in this model? If so, where is it located? Thanks

There is a airfliter under the dash, passenger side. Remove cover under dash, remove filter cover (one on the left side). Slide out filter. Replacment available from dealer at approx. $15.00 or third party for $10.0

Also, if you can reach them, try to clear debris and lint from the fins of the evaporator.

Good luck,