Help, all sorts of wierd problems

I have a 1991 500 SL and tonight its decided to play up.
The only guage working on the dash is the coolant temperature guage.
The warning lights on the dash are all flashing very quickly.
The lights all work except the indicators.
The car drives fine.
The soft top is down and wont go back up.
The interior lights wont work except the lights in the doors.

Anyone have any ideas?

Nearly all sorted, it was just a fuse gone, fuse 9.
Just got to get the soft top working now, its decided to stop since this fuse blew.
It's shut and tightens down if you push the button forward but will not open and the light flashes every second or so.
Of back into the garage to try something else.

they just disconnect and reconnect the soft top module and it works most of the time.