Today I put in a new Crankshaft Position Sensor, it is a hot day, and I then drove it for fifteen minutes. Parked and returned 45 min later and the car was again in Limp Home Mode, (so was I) and I opened the hood for five minutes to ventilate. Then it started and worked normal again.

Drove home on a narrow road and just when I was overtaking two cars, it turned into limp mode again, very fun to get out of that situation...

Stopped, ventilated for five minutes and got home safe.

I´ve been to three different MB service centers without any result so far...