HELP 318 1989 no gauges

[SYLVA]

I hope some-one can help me please, problem is this , I have none of the following working , they all stopped together, Fuel gauge, Temp gauge, MPG gauge, Blower,
Mirrors, Rev counter works some of the time. I have changed SI board checked all fuses and relays but to no avail.
Any advise please

 

[DRWWE]

I would go to a BMW dealer. Sounds like you have a real problem.

[driving2]

 

[nadroj]

i would say take out the insterment cluster and check all the connections because the tach works intermitenly