190e surge on deacceloration
 

I have a 190e 2litre done 166000k and after a load of problems that I wont go into save boring you, I am left with this problem.
When I deaccelerate , anticipating stopping at lights for example, as the tach passes though 1300 rpm something interupts the slowing and the tach bounces back up a hundred or so RPM. The car doesnt want to slow down, and at its worst before the Agents recified it ,the car went into a nasty ocilation. Its now detectable but nowhere near as bad. It still annoys me though. When you touch the brakes the car continues to slow down as per normal Any Solutions? problem was introduced by agents after a complete breakdown.