Going to start hunting down some of these rattles. Thought we could start a thread to help each other.

 

Can you give more detail on your car (year, spec)? I have a 2018 C300 cab, about 39K miles. No rattles but I did have the wires issue on left side that others have had, got the liner replaced under warranty. Curious if rattles are next.

 

I have about 38.8k miles c63 cab 2017.

 

Started to dig into the rattles:

front headliner area

rattles in footwell (also upgrade subs):

I've done the doors too I need to post that video next. and going to do rear shel after.