Hi Bob!
1. Log on to www.bmwe34.net and look up the great info on the instrument cluster. On there you will read about a number of fixes for this problem. From memory one is from an Aussie stating that he got a reco bottom section (where the read-outs are) for about Au$450.
2. DO NOT go to the auto electrician unless he specialises in euro cars as a standard guy will spend hours guessing and testing stuff (at your expense).
3. I can't understand why yours is on the blink as mine only plays up in the cold and it NEVER gets cold in Brisbane!
4. Let us know how you went.
Cheers
Wingman
'89 525i/A Exec 193000kms
'94 Subaru Liberty AWD Wagon
Looking for Merc 300TE
NSW, Australia