Do all C240 have the Cabin filter under the Glove Box? Reason I ask is because I went and got the filters and was going to replace them and then I noticed that there was no cover where the filters go. Instead there was a white Foam insert in that area. Now I did replace the one under the hood by the battery.

So I am guessing only certain 2004 C240 have the cabin filter under the glove box.

 

the cabin filter is the one by the battery under the hood. I dont think the C class has another filter under the dash. other vehicles do have them there.