gearchange

Noticed this more frequently lately. Most mornings when pulling away from home my gear changes sort of surge? As I accelerate the revs increase more than usual and the car sort of jolts. Have been back to the dealer 3 times and they say they can find nothing wrong. Anyone any ideas? Paul.

Hello all. I have replaced the MAF on my 99 C200 petrol ,i have since done about 400 miles or so,it doesnt seem to be as powerful as it should be when you put the boot down or it doesnt change up or down when it should ,Do i need to reprogramme the box??Any help would be appreciated ,

Not sure if this is a problem, or a potential one! Driving home this evening I noticed that the gearchange was more abrupt than normal, almost to the point of a snatching feeling. As the car warmed up there seemed to be more of a delay between the gears, similar to a slightly slipping...