[sha6471]

I have a prob with my instrument clocks, over the last few days the clocks have been going off, and that includes the sppedo, rev counter, fuel guage and temp guage. However i went to drive off in the car today and they refused to come on. I have checked the fuses and also the plugs on the back of the clock panels and they all seem ok.
I really need help with this.
Any help would really be appreciated
E34 520SEi 24v
M reg