Hello together, today my R230 on the highway has scared me a lot, which I (so far) can not explain – maybe someone here from the forum has a tip for me. Today I used the nice weather and the free highways in Germany on my way back from the holiday back to Switzerland to get rid of a bit of the melancholy thoughts about the current speed limit (Yes, we were at the “right” corners in the big canton). hem Cruisen with speed 180 I then had a visitor behind me, who did not make any stress, but the Schalk in my neck then made me try out how long he probably stays behind me. Not only that the Mercedes has remained on it, at about 240 km/h my car suddenly fabricated a strong smoke flag, a bluish and quite neat cloud. There were neither inappropriate noises from the engine nor any warning message in the cockpit. I immediately got the Speed reduced (which turned off the smoke flag), I got out at the next resting place and looked at my car very suspiciously and very much for the amusement of some people. Neither oil dripped out anywhere, nor could you smell anything, also there was still no error message in the display. Everything seemed quite normal and after we continued the ride, even despite slowly rising speed, there was not another cloud or problem again. The puzzle is now… wa s was that, does that hurt, what needs to be repaired? Thanks to the Swiss guarantee, I’m not worried about a repair, but I would really like to know what happened first? Can any of you help me? Many greetings, Frank