VikingBattleram

Ok my 1995 c280 has started doing something really weird. It drives perfectly fin the engine seems to be fine but when I start driving the car starts in first gear then shifts 2 to 3 to 4 in a matter of seconds. And say I'm going 80km/h and I wanna pass someone and I want to get around them fast so I put my foot down and you'd expect the car to shift down so it can accelerate faster but no it just stays in 4th and it is really annoying... Any one have any ideas?