Hello, I’ve been here in the forum for a long time and I think it’s really great. now I have a problem, and I bought a r170. the car runs as far as perfect as if it was standing longer, i.e. a night so that it has completely cooled down, the error occurs that it stutters for a short time while driving. so when switching from the 2nd to the 3rd course, it doesn’t take a bit of gas again… the whole occurs only about 250 meters after the start on afterwards everything is renewed i.o. i ch: spark plugs and the air filter. the throttle flap and also this part which looks like a throttle flap which is screwed on the air filter I cleaned. but were not very dirty. to the vehicle again: mercedes slk, r170, b.j 04.1999, ca-.150tkm, 2,3l compressor with automatic transmission. I hope you can help me. mfg Dorian