Help! I recently purchased a 2003 220CDI. The (auto) gearbox sometimes jolts (a feeling of hanging then lurching forwards) when changing gears - mainly when going up from 2nd to 3rd. It doesn't do it all the time but when it does it can be quite a violent jolt. It went back to the garage where they said they put it through the computer but couldn't find anything - I suspect they just don't want to admit that there's a problem and fix it under the warranty. Problem occurs in both C and S modes.