Saschi

hello,

i was at my mercedes dealer 2 times for this problem.
but they couldnt fix it.
the music is on a normal level but if there is any bass it rattle at the rear?!

INS1GNIA

It could be inside of one of the door panels...I know my driver side door trim rattles every so often. If nothing else, dynamat every inch of that ***.

Saschi

no it must be at rear seats. i dont know where the bass speaker ist?!
i have a coupe

zcct04

My impression was that we did not have a bass - or any speaker of any kind - in the rear of the coupes. I've never looked.

cays

"While, in the C-Class sedan and coupe, the oval subwoofer and a surround speaker are installed together in the parcel shelf, the acoustic experts placed the subwoofer box on its side in the rear of the station wagon. The discrete positioning behind the side panel delivers impressive bass reproduction without impacting the cargo capacity. The interior of the station wagon called for a special solution in positioning the surround speaker, too – Harman Kardon sound specialists mounted two 80 mm surround speakers in the upper part of the D-pillar. On the sedan and the coupe, these sound transformers are located at the outer ends of the parcel shelf. In the more compact coupe, four tweeters and four low/mid-range speakers in the doors and rear side trim make for a balanced sound. In the sedan and the station wagon, the rear doors feature coaxial speakers that, with two highly specialized sound transformers in one casing, generate a broad frequency spectrum."

scc2687

I randomly hear buzzing noise from rear ( maybe rear deck?) when i playing music especially piano and guitar. I had dealer checked this problem , but they told me nothing was wrong.

JRHolt

Climb into the trunk or backseat with the music playing and see if you can find the rattle yourself

alexmtl

I had a similar rattle a while ago, I climbed back and found out that the rear deck was vibrating against the rear window... Poor quality stuff if you ask me, but hey, it was an easy fix

zcct04

CAYS - Welcome to the site, and thanks much for the great post! That's pretty impressive info, and especially so for such a newbie. Where did you find that?

Saschi

can you tell me exactly what you have done to fix it?
any picz?

thx very much

Bigtickets

Mine does the same thing. Rear sub is blown. If you open the trunk you should be able to find the actual speaker. Push on it with your finger with the music playing and if the buzzing goes away, that's your problem.

cays

Thanks. I found it searching for info on Media Interface/Command in general a while back. Here are some useful links off that site.

Technical details for all three body styles:
http://mercedes.harmankardon.com/en/...cal-coupe.aspx

Harmon Kardon brochure pdf for C Class:
http://mercedes.harmankardon.com/bro...Class_1012.pdf