Hermes Comms Module
A suggestion in another Forum suggests Module registration fault? May need to suggest to dealer to replace but don’t want whole car dismantling!
Any ideas gratefully received.

How come any control unit for a 2004 Mercedes would be obsolete?
So that means, is it still under the allotted time that MB gave you if you purchased the car new or has the "mbrace" expired?
If it expired, did you get the "entertainment" mbrace package which is what allows for the hot-spotting?

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I can explain further if this is the route, bit the critical step is starting a Mercedes Me support case, they then do what they can or instruct the dealer on how to handle the issue. I would say there's no point in taking it to the dealer till a Mercedes Me case is moving, even for the avoidance of doubt.
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