What are these vents in the trunk?
 

Hey everyone! On my 92 300E, there are these rectangular vents in the trunk behind the trunk paneling. What do they do? I had taken off the bumper to fix some rattles, and it seems that the vents are rattling as well, but I could'nt hear them previosly because the chrome trim was rattling louder. Btw, I am trying to keep my trunk from rattling as I put in a couple 10s and at medium listening levels, the bass inside is great, but on the outside my car sounds like its gonna fall apart. If these vents are sacrificable, I think ill take some great stuff to em and seal them up.

They are the vents for your flow through ventillation system: exits out your trunk.

I have eliminated a lot of the the vibration by using sound deadening applied to the inner panels. Works very well. Makes the doors close with more of a clunk.

If they are at the rear of the car, then that is where some of the air that flows through the inside of the car exits. There are flaps so that the exhaust gases cannot be sucked back in into the car, which can cause CO poisoning.

You can hear the flaps when you slam the door or the trunk shut.

at least that's my opinion ... ( a la dennis miller ) :)

yea, the flaps are making the noise. So whats the prognosis then? They need to stay?

To my knowledge, and according to MBenz (Steve), the vents are to let air pass out of the trunk when it's being closed.