5IVE

Does anyone else HATE the fact that the CLS is noisy as a mother when the windows are cracked and you're doing anything over 35? The roof is noisy when it's open too!

SAMSSONZ

learn to live with it.

j_belll

i get that too in a C and E class.

Htowncls

my music is normally up so i havent noticed.

allied107

I have never noticed but I'll check it out.

yahya

I thought it was just my car.....but I guess not. My driver and passenger headrests rattle like crazy! I had them both replaced but they still rattle. The guys at the dealership said that it's normal....I find that hard to believe.

If you can't stand the noise, I suggest you take it in.

jnolan

My wife's Range Rover feels like an out of control subwoofer if the rear windows are open but not the front or the sunroof.

I won't put myself in the position of simply defending MB on this, but I do think there are some issues around aerodynamics at work here that are no different from other cars. On the rattling noises, that is clearly a quality issue and my car doesn't do this so I'd suggest taking it in - repeatedly if you have to so that the dealer knows you just aren't going to go away.

konigstiger

Try removing each headrest and spreading the mounting bars then reinstall. This usually solves the rattling noise.

jsloan01

my c class was like that

crack the back windows - that, for some reason, seemed to help it significantly