Hi Gilly, sorry I was away for a couple of days, The fuse was in the passenger side computer box and on the plastic cover the fuses are listed from F1 to F5 ( very hard to see on that small cover)
The problem is still there and do you know witch computer controls these functions ? I drove yesterday a couple of miles and suddenly the speedometer started working and the cruise control ?? but today there is no sign of life again. Let me know

THX Ben