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“Device detected at diagnostics connection” message

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8.5K views 17 replies 8 participants last post by  Grivas Steven  
#2 ·
What does your owner's manual say?
 
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#6 ·
senih86 said:
hi there we have a GLE 400D and that same thing come up on our car as well
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What does the owner’s manual say. I would start with that.
 
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