Car is running again.
It was the bearing and the brushes of the hydraulic pump motor (material less than 10US$). My confidence in ferrari dealers is drastically "corroded". Anyone needs a new ABS ECU - I got one over here ...
As my car has decided to challenge me - a new failure came up. The passenger seat automatic movement (if you swing the back rest to the front, then the seat should move in upmost front position). Dealers diagnostic: faultet Seat ECU - 1100$US + VAT. This time I was a little more scared about these diagnostics. Changing the ECU from passenger to driver seat - no failure. Therefore itīs not the ECU. As there are a lot of micro switches and even more cables running across the internal seat, no wiring diagram (by the way, does anybody has access to 456 wiring diagrams - would make my life easier) - looks again like try and error for hours. Life is not easy - just driving a Ferrari would be too easy.
In the meantime I love my 308 GTS even more. You can get a lot of help and there are no electronic "gismos" around - much more straight foreward (ok - there is a 20 year time difference ....). For DIY people, and obviously as well for the Ferrari dealership, the pre-gismo century is much more recommended.
Hope that this is somehow entertaining - at least my car does itīs best to keep my busy.