"Problem has been solved by the same dealer a while after my previous post, it was the Brake Light Switch, on which many W210 users had complained in the past. Now the car runs as it should"
i have a 200 E320 that is acting just like your at the first of the post, sometimes its perfect and then at times it acts like this and wont shift, it also has the ruff idle but performs great, gas mileage is perfect but ruff idle. so to fix the prob ended up being only the brake light switch? is that correct?