I had realised that I didn't get the ABS noise when first pulling away in the cab, worried it might be faulty I jumped on the brakes in the wet and trigged the ABS. So it works - there are no warning lights either, I am guessing they revised the software for 91 cars - my 90 car does pump the ABS on the first pull away of the day. Surprised they bothered that late in the production unless its a development for the 968.
Tony
Tony