Thank you for the welcome Big Easy!
I think I am on the right track to blame the multilayered metal sheet gasket. Normally when you have a multilayered gasket you should have what we call a envelope from the inside. this will prevent any leakage through the layers. The BMW gasket is not build like this. I will now TIG weld the inside of the gasaket so ensure a proper seal. The oil leakage from the Torbo pipe to the intercooler was caused by the rubber gasket that was installed the wrong way around. It sohould be installed in such a way that the pressure will force the lip open. The lips should face forward. Mine was the other way round, you can feel the difference by pulling on the pipe.I will also use a special polymer sealand that works with an activator to seal all the pipe properly.the haet range is 260 deg C at 200 bar. This will stop all leaks!

Zambezi Auto did the services and the previous Turbo change which was not needed! The motorplan was cancelled by BMW because I did my own brakes when they refuse to help me December 2009, I have also stopped paying BMW.

Will keep you posted