.This is a common problem on older models, like the 107 and 116, and an easy fix.
Remove the instrument cluster from the car and dis- assemble it till you get to the odometer assby. The problem is the gray metal gear on the number stack. It is supposed to be press fitted to the shaft and spin with the shaft, but over years and age and many miles it loosens up from the shaft and fails to function.
Fix it by pushing out the shaft with the correct size drill bit then support the number wheels with the shaft removed. Set the shaft next to the stack and note where the metal gear was positioned.Next take a punch and hammer and make a dimple on the shaft where the gear goes. Press the shaft back through the stack, re-assemble everything and the odometer will now work.
I have done this procedure on several cars and it works great.
Good luck:
Bill

__________________
J. William Tarbrake
NY State Dealer 7014303DLU
Registered repair shop R7014303
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