Afternoon All, I have a small problem (though could be expensive??) with the gearbox on my 2001 CLK. It's the 5 speed auto box with the tiptronic function. A couple of times recently when I have engaged reverse the car has jerked backwards slightly (like a very lumpy gear change) and then reversed as normal. However, when I then engage "Drive" and move off forward the car jerks again and then drives off in first (or maybe second) gear. It doesn't actually change up so I am then stuck in that gear irrespective of speed. I then have to pull over, engage "Park" and switch off the engine to try to re-set things in the hope that it is then ok when I drive off again. Has anyone else encountered this and can anyone help? I don't want to have to buy a new gearbox!