NegroC230

ok, wtf???? i disconnected the cd changer from the glove box and removed it from my car, and no , audio is dead. i mean radio is working, cd is playing, but theres no sound coming from the speakers. does the fiber optics has anything to do with it??? do i need to put that plug somewhere else to create a loop of some sort?

Moviela

This depends on what other equipment you have connected on the MOST ring. Do you have premium audio (with a subwoofer under the package tray), a telephone, a Sirius receiver, or tele-Aid?

The audio system waits for all the "players" to chime in when started. Version coding is needed for some. If you have premium audio, removing the changer has left the amplifier on the rear wheel well arch disconnected. You need to reconnect the MOST ring. It can be done by using some splice connections under the carpet on the right side of the transmission tunnel. You need to reconnect the fiber optic cables to exclude the glovebox changer from the loop.

NegroC230

subwoofer, check., telephone , no, sirus, no and no SOS...what is the MOST ring??

Moviela

Take a close look at these instructions for installing a telephone in your car. It has an explaination of how to configure the MOST ring to get the amp (called SOUND by Mbz) reconnected. They also show how the cables are labeled, and the change area under the carpet. There is enough information here to figure this out. Good luck.

http://phdwebsite.powerpulse.cc/Phon...0C%20Sedan.pdf

NegroC230

thats what i call first class help..thank you ohh so much. may God reward you with plenty of children :P

LILBENZ230

If you have the Harman/Kardon Logic7 system, you could have suffered coincidental amp failure. That has been unfortunately common on the cars with the premium system. The amp will run you about $1,000 (ridiculous, IMO) I'll see if I can find the thread about this and post it here.

IMO, Mercedes should have stuck with Bose instead of changing to HK. The W203 until facelift had Bose and amp failures on those are unheard of.

Edit: Here is a thread about the amp failure: https://mbworld.org/forums/c-class-w...io-system.html

NegroC230

ok guys , i got it fixed. basically the entire car is pre-wired with fiber optics for tel., satellite radio, sound, etc. when you add any features you have to re route fiber optics to conitnue having that loop of sound closed. Great help Moviela!!! As far as the amp in the trunk, i would question its placement , NOT the amp itself. I noticed that whenever i washed my car thoroughly , right after wards my sound system was flickering or pitching really high squeeky sound once every minute or so, regardless of the volume setting. And eventually it would go away within few hours or so. One day i innocently was doing something in the trunk area and i noticed that the bottom of the carpet ( that cave thats located on both side of the car , right underneath the tail lamps ) is wet or damp. And i believe that water is the culprit in the failing amp. Also, i dont think techs at MB did much thinking about placing it properly to help with weight distribution either ( heavy amp on right side and heavy power block on left side) lol...anyway ...all is fixed...and improved ...till next adventure, hopefully happier

vdubpower

the sound in my car just disappeared today too, i have the non nav HK system, all displays and cd. cdc, ipod work except there is no sound either. could this be amp failure as above

and if i still have original extended warrenty, it should be covered right?

LILBENZ230

The amp location makes it prone to water damage for some reason.. if the HK system sound goes out it's almost always amp related

vdubpower

im gonna schedule a service, it should be covered by warrenty right, i purchased extended 7/100000 when i bought the car, from mercs

LILBENZ230

Amp failure should be covered by warranty.

vdubpower

about to hit the 60000 mark too, not helping the value of the car, as i still want an e63 bad

Glyn M Ruck

MIKESV8

i'll be getting one pretty soon here

vdubpower

what yr are u looking into

jfelten

I spent a good hour googling this, and still didn't come up with the info in this thread. This is about the 5th time the sound has died for me, and it always comes back after the car has been off for awhile. We had heavy rain here today so maybe I have a leak in my trunk.

No warranty for me, and I don't know what I'd do about a bad amp. They can be repaired for about $300 or so, but I hate the idea of putting money into a such a poor sounding unreliable system. I have the non command HK system with all the components.

MIKESV8

a 2007. i found one with a clean title black on black with 53k miles for 35k. i'm gonna try and get it for like 32k or 33k.

LILBENZ230

If you have to buy the amp expect about $1000

tommy

Search for another similar thread here. Every so often, my sound goes out completely, though the stereo works fine otherwise. What I do is remove the fuse in the panel to the left of the the steering wheel that is in the middle of the panel, then put it back in, and everything then works again for at least the next month or two. Others have had this work as well. Not saying that's what you've got, but it couldn't hurt to try. And while you're there, wouldn't hurt to look at all of your fuses.

krazzdav

Thanks so much!!
This is exactly what I had to do in order to get the sound working again. I have a 2005 C230, sound was working when I parked my car then 2 hours later nothing! The radio turned on and worked fine just no audio coming out of any of the speakers. I pulled the 25amp fuse #26 which is the 6th slot down on the left side of the fuse panel to the left of the steering wheel which is labeled in the manual for "Sound system (SE)", fuse looked good so put it back in and voilą! Sound is back working.