Hi, I know it's been a long time but do you guys have any update on what was the issue?
This happened 3 times to my E60 520i with M54 engine.
Always when driving on a highway ~60-70 mph on 6th gear.
I randomly get a check engine light and the car loses power immediately (no response to gas pedal at all) and RPM keeps jumping between 1.5k-2k.
When I turn it off and on again the problem disapears.
I only get the P16C1 error code.
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