I own a R172 200 compressor, automatic, 46,000 KM, BJ 2012. As I was slowly approaching a traffic light today, the car started to jerk about 1-2 seconds before stopping before it was standing at running engine. (no start/stop used) Nothing happened when starting – it started normally. Automatic is usually normal when switching. No jerking or hard shifting curtains. That happened to me a few times today. However, not every stop. H at someone’s experience with it or the same problem found with his SLK? Besides, I also noticed today that the car (he apparently has a sound generator as standard) generates “misfires” between 20 and 50 kilometers per hour in the sport course. Can he even “create false ignitions, such as the Audi Quattro TT” or is the generator only responsible for the dull engine sound? These “misfires” have never occurred to me to city traffic before. At higher speeds. In ECO he doesn’t do any. Is that actually normal? Would be great if someone could give me some advice. Greetings Squasfly