Hi Guys,

I have a 2002 BMW 745i. It has been deregistered and put a side for about a year. Of course the battery was dead and I had to replace it. The car started like nothing had happened. I refilled coolant fluid and servo-steering fluid since the car told me it was short on that. However, the Dynamic drive were still inactivated. I connected my computer to the car and rebooted all the memory. All the statuses showed OK. Except the Dynamic Drive. I haven't driven the car more than one lap around the block. Restarted the car a couple of times and the display is still showing DD inactive.

Is there a simple solution for this? What could be the cause?

Thanks in advance!
Best regards