I am restoring an 88 M6 and when I pulled the cluster some items were not working like the tach.I replaced the SI board batteries which had corrosion on the terminals and would not take a charge.
Since my M6 is not together enough to check the cluster out can I put it into a regular e24 (633, 635) just to see if everything works or can I damage my cluster? I know the tach will be of incorrect but I was thinking at least if it moves that would be a good sign. Or I could swap the coding plug maybe.
There are 2 other M6s in my area but I don't know them well enough to ask to swap.
Thoughts?
Cluster swap
Moderators: GRNSHRK, ron, bfons
Cluster swap
88 M6
88 325i
89 635CSi
00 528iT
88 325i
89 635CSi
00 528iT