Originally Posted by ultra_E63

During your reboots did you have any response from the unit at all prior? My unit is totally unresponsive, as in blank screen, no reverse cam and flashing power button. How long was before the unit became responsive after holding the power button ? Holding the button longer than anything over 30 seconds seem moot at this point haha.

Originally Posted by chackett

Hi All-

Recently the Command / Computer / Radio in my wife's 2014 E350 started randomly rebooting or failing to come on at all. It happened while I was out of town, so of course, she took it to the dealer and spent $200 for them to say "We tried everything and you need a new system at a cost of $4,400."

Googling around, I've seen several videos and articles that describe using a fiber loop adapter to systematically "remove" various components or modules from the MOST Network; modules like the Sirrus receiver, nav unit, voice control module, etc. In THIS video the fellow uses a fiber loop adapter to "remove" the potentially failed module from the MOST Network, but in THIS video, the guy simply unplugs it.

The modules that I have heard of people having success "removing" from the network are; the CD changer, the amplifier, the Voice Control Module, the satellite radio receiver. I'd have to believe there may be others. I've also read that of these modules, with the amplifier, that module must be replaced, you can't just remove that one from the MOST network.

Is there any definitive guide, or video or Wiki or anything regarding this issue, troubleshooting procedures, and fixes? I really can't afford to replace this thing at $4,400 and my wife can't survive her commute without a radio. Kind of a bummer that her 2014 vehicle with <100k miles has this expensive and problematic of an issue. Hopefully I can resolve it.

Thanks,
Chris

Originally Posted by Tripod67

My 2016 E250 command system went into a re-boot loop: it would come on as if powering up, operate correctly for a few seconds then reboot, over and over continually. Tried disconnecting both batteries for a few hours to no avail;. Took it to the dealer who said they couldn't get it to stop rebooting and gave me a $4k+ estimate. I removed the radio and it sat for weeks while I researched electronioc repair companies where it might be repaired for $2500. Finally, after mostly getting over sticker shock, resolved to let the dealer repair it.
Made an appointment and re-installed the radio just so the dealer wouldn't give me a hard time, and discovered that it now worked as new. No need to take it to the dealer, just pull it and let it sit for a period of time. It is an easy removal....