MERCEDES BENZ 190 W201 strange idle Hi all. i have a 1991 190E 1.8 european version (i live in Spain). the car is in top condition but im having a little problem with idling.Sometimes it goes up and down about 20 to 80 revsmin. Also i get small shakes from the motor while idling lets say about one every 1 or 2 seconds (they are small but annoying to me).