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Old 12-24-2015, 11:15 AM
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Hirnbeiss Hirnbeiss is offline
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Join Date: Mar 2002
Location: South Florida
Posts: 1,642
Your mechanic was mostly right: these things are all clients on a network called the CANBUS. Problems on one cause communication issues with the rest. Google Canbus if you want to know more - there's a pdf that explains it better.

But, to troubleshoot, you can disconnect the connections one at a time, do a battery reset, and see if the problem recurs. They all connect here: Where is the CAN bus connector X30 on a W210?
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