jolly rivet
Hello everyone.
I own a Mercedes C250 Turbodiesel that's automatic. Recently something odd has been opening.
Whenever my car is going to switch from 3rd to 4th gear, it seems to rev the engine for no reason and then switch the gears.
However if I am speeding and flooring it, it switches gears perfectly.
I have done a transmission oil change a few days ago but the problem persists.