Britwench, thanks so much for your reply

Well, if the diagnostic took them blaaady 2 months....what sort of service a porsche dealer is rendering...you can connect the dot! But i guess, what Porsche AG would be interested on how many Porsches the dealer could sell.....who cares about the after sale service...true?! *sigh*
Wish i am residing in the US.....then i could rest assured my porsche will always be in a tip-top condition and if things do screw up, i know help is always there...yikes....i'd better dream on and on and on :P
Anyway, would you happen to know how to cross-check a Porsches' engine if it is genuinely in its place? ....pop the hood, engine encryption is there, right? and those numbering would also be imprinted on the engine itself right? but how to get to those numbering to the engine....do we have to dismantle everything , i mean, the filter part and those wiring just to see it??...or one could just jack up the car and Voila!~ so, which is which guys?
Much appreciated if you know the answer to my question.
Many thanks in advance...cheers! Guten Tag!