W221 320 CDI Parktronic module

[polababa]

Hi Chaps
I got my new W221 320 CDI a week ago and when I got my car the parktronic worked well, then my battery went flat due to an alternator fault, which has all been resolved, I had to clear out low voltage errors from all the modules with a STAR diagnosis, which I have done, and noticed my reverse and front sensors not working anymore. There was an error saying no voltage going to the parktronic module.
The chap who did the STAR diagnosis said I should check the fuse. So I did check ALL the pre fuses and fuses, and they were all fine.

I would really appreciate your suggestions.

Thanks

Regards

Polababa.