Nto sure if your car has one, but search for OVP, and read the posts. yours sounds like it could be related to this inexpensive part, which is notorious for similar symptoms and many others.

I would also have the codes read, it could be showing a fault code for something specific.

Good luck on your search.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U