Edi ... sounds not good ! I hope the factory solves your problems in a short term. Please let us know. I appreciate your technological knowledge, your structured proceeding and .... I´m a real Morgan-Post fan since you are the editor.
My experience with the factory was not very helpful. Obviously the distance is the problem. The dealers are´nt in an enviable position.
Five days ago I was driving a Wiesmann MF 4 GT,also BMW 4,8 L engined. The result : Stunning and a perfect acceleration from 0 - 290 km/h (was not the end). My Aero S4 speeds up like the first Porsche Turbo and top speed ends at(closed and open) 240 km/h. No solution from the dealer, no solution from the factory. Now I will organize a winter BMW - Munich stop to find a solution.
The factory should optimize their international support. The Aero & Aeromax family (in Germany) is growing . May be faster as the support.
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Oliver