I have a 2006 MB S430 and the cabin air filter needs to be changed. It gripes me to pay the dealer to do this. Does anyone know the “secret” to access the filter I patially un-snap the housing, but can’t get it open all the way.
You should be able to have most any service done by someone other than a dealer. Dealers are no better (or worse) than independent mechanics for almost anything you might need done on your car. They will almost always charge more per hour and often more for parts and supplies. They also tend to look at repairs a little different than the independent.
A dealer may well recommend work that strictly may not be needed, but could be connected to the problem or maybe replace a part when a little repair would fix it ALMOST as good a new.
There is no need to bring your car to the dealer for any service other than service that is going to be paid for by a recall or original warrantee.
I suggest that most people would be better off finding a good independent (Not working for a chain) mechanic.
For the filter instructions check out:
http://forums.mbworld.org/forums/showthread.php?t=26146
or
There might be a second catch or you pull the thing a certain way then out.
For on-line instructions check the aftermarket filter manufacturers’ web sites. Instructions might also come in the box for aftermarket filters if they offer them for MBs