Taking your car to another dealer won;t make a difference. two dealers near me both said the problem has to be replicated by the technician since no codes are thrown. Once they replicate the problem, they'll fill out a form to send to the MB rep and so on and so on. Very protocol minded.

I don't believe this is temperature related since on both instances the temps were low and the car was even in the garage when this happened on one occasion. I'm thinking your video is our best lead at this point since it's evidence of what's happening to these cars. The tech I spoke to said they have had issues with the audio gateway in these cars but he won't look into it unless they can replicate the issue.

 

Mine was definitely not temp related.
The other issue is when my issues first started we were dealing with tsunami inspired parts shortages.
I was told that many of these parts whether command, or audio gateways were being. ecycled due to this. Nobody knows what/why we are having these issues. Since these are sporadic the part gets pulled then sent to MBUSA for QA. Many will pass QA because of the sporadic nature. Then they get sent back into the pool to be sent out to put into the next guys car.

After almost a year I got fed-up. I traded it in.

 

Mine has now done it three times - this afternoon was the third. I got my car well before the tsunami. Mine did sit in 90-degree heat for several hours, which is unusual.

 

FYI here is EPC part replacement history:

MY10

- Control Unit
2129068300
Replaced by 2129069400
2129063201
2129068604
Current 2129069000

- Display
2129005000
2129008607
2129004407

- Selector
2128701451

- Control Unit Fan
2048300708
2049060015

- Amplifier
2128700194
2129007108

- SDARS
1718701289
1719060900

- Antenna
2048206575

- Backup Camera
2128201897
2128202797

MY11

2129069000
2129008609
2129002612
2129002812

2129005000
2129008607
2129004407

2128702851

2048300708
2049060015

2128700194
2129007108

2128701289
2128705589

2128201775

2128201897
2128202797

MY12

2129005014
2129004407
2128702851
2049060015
2129007108
2128705589
2128201775
2128202797


MY13

2129009016
2129004407
2048709758
2049060015
2129005213
2128705589
2128201775
2128202797

 

Last word from MB USA is that the problem is with software in last upgrade and that "they" expect to have a solution within two weeks. Current problems started following an upgrade by the dealer. MB states that replacing hardware will not solve problem. In the meantime, the Command system continues to malfunction periodically. Has anyone gotten similar information from MB recently?

 

Yes I heard that the first 2 times they reloaded NEW software on mine back in February,
I think they simply do not know what the problem is.
benefit is I got latest software that many didn't have even in newer cars. but still was not effective in fixing my problem

 

I would love to be a "quinean pig" on this. If your dealer has been instructed to find out from you how it is it means there is corporate interest to solve this issue. This could lead to a fix for all of us.

 

Bulletin LI54.10-P-051049 "may" be applicable in that value transmitted by the battery sensor to the rear SAM is too low causing consumers (i.e.: COMAND, etc.) to intermittently shut off - recommends using diagnosis in SAM to read out actual voltage transmitted by battery sensor to SAM comparing it with voltage measured directly at battery using multimeter. If a difference > 1V is measurable, battery sensor must be replaced.

 

^So is this the fix to the audio mute issue ?

 

For me the audio mute issue has not reappeared since the SDAR (sat radio) firmware was reprogrammed. It is a known tsb now.

 

LI82.85-P-054716 https://mbworld.org/forums/5381790-post92.html

 

I believe this is what was done to my car and it fixed it.

My receipt says:

"LI82.85-P-054716_Ver.2 FOUND RADIO INOP AT TIMES. BULLETIN FOUND FOR RADIO INOP. PERFORMED INSTRUCTIONS PER BULLETIN, BACKDATED SDAR CONTROL UNIT SOFTWARE TO MAKE OPERATIONAL WITH CONTROL UNIT."

This was done 10/25/12 and has totally fixed it. I used to have the no sound problem at least once a week, not one time since the update.

 

Great , looks like thats the solution ! Im going in tuesday and I will show my tech that. Thanks hope it works !

 

I loss the audio this morning for a short period of time. I had the Satellite Radio replaced a couple year ago. This is the first time I had a loss of audio. The temperature was in the low fifties for the last few days.

The telephone did not work, the discs were not working and the radio was down. I was able to eject the disc. The navigation worked without audio. I made a stop at a location for about a 1/2 hour. I returned to the vehicle and the audio was working. The radio, disc and navigation.

 

Command centre/satnav, etc, reset, 'R' class, Merc, 2007, See under 'Battery' regards Jack.

 

I have the same problem, bought a CPO E350 1 year ago and the Audio recently stopped working. Dealer showed me that there was a leak and water had corroded the wires under the passenger front seat. Not covered by warranty. They wanted $3,500 to replace the Media Manager module, Carpet and wires. I will fix it myself and let you know.

 

Is your car still under warranty? If yes why is it not covered by it, i.e. how did the water leak inside the car? That should be covered as well as damage it did.

 

has any body had a problem where , cd wont eject or spends ages loading and then there is no sound when it does load. Its does not seem to be reading the cd. Its a single cd unit. when u press the eject buttom it says ejecting but nothing happens, then says device not avialable.