Sorry for not mentioning, but I tried charging the battery immediately, and also topped up the servo reservoir (already at max), but it didnt make any immediate change. However after a couple of days the fault frequency went down. At the beginning it was there maybe four out of five drives now its more rarely. I started and stopped the car four times today, no faults. Drives fine as well. When the failure shows it is way different to drive, it rolls a lot around the front axle at roundabouts etc, have to watch the speed while cornering. Ehen the faults doesnt show its perfect to drive. Sport mode works as well.

I am not sure about the battery age, I will have a look and see if its marked with a date - or maybe its possible to read when it was coded in.

The servo takes CHF11S fluid. It might be worth a try to replace it. Not sure if its part of any services. Its had all the required services until now (about 60k miles).

I dont have Rheingold, but I have access to INPA, and can ofcourse have a workshop read codes.

Thanks for the pdf link!