Electronic Brake-Force Distribution (EBV) fault

[X5only]

Electronic Brake-Force Distribution (EBV) fault
Hi,

On a 2005 X5 4.4 sports both DIS and INPA report diagnostic fault in Electronic Brake-Force Distribution (EBV). No warning lights show up in the dash, car performs fine as far as I can feel and there're no other fault codes stored. The EBV fault always come back after being cleared and driving the car for a while.

The interesting thing is that DIS reports that the fault is not relevant to the software version of the EBV control unit, but then recommends to continue troubleshooting in the running-gear control system. I could not find such a system in DIS to verify if this is indeed not really a fault.

Also interesting is that DIS always reports that the model series for which the instrument cluster was coded could not be identified and this can result in false readings. I've re-coded it via Progman but still get same report from DIS.

Now, does the EBV control unit need a software update? I tried to do that via Progman but no such control unit is listed for the car.

Appreciate any ideas on what exactly is the issue here if indeed their any. Or is this by design as probably indicated by the DIS report? Anyone with similar diagnostic report? I'm trying to avoid going to dealer who'll surely charge an arm and a leg for any daignostics verifications.

Thanks!