Thank you for the responce.
I will check the vacum lines. I have found several "rotten" connectors/splitters,so this is prob. where the probleme will be.
I have one line "just laying"under the brakefluid reservoir. It goes down on the driver side, but I can not find out where it is missing from. Tryed to talk my MB parts guy in to telling me the collour codes on the lines, but he just wanted to sell me another cd.....
Thanks again 5 banger