Just picked up a 1991 190e 2.6 missing an instrument cluster (prior owner was starting to part out). Will all abs 190e clusters fit....2.3/2.6.....and E320 also (seem to be same cluster?)

I can't help with the 190E but the E320 cluster will definitely not work.

You'll need a 2.6 cluster, or the tach won't work correctly.

Thank you