I have at least one spare LCD temp-display for a 126, I believe they are in Celcius however. List is around $400, used they usually sell for around $30, let me know if you are interested.

The odometer is a different problem, on most Mercedes (and most VDO from the the early '90s and before) the pinion gear slides along the shaft and loses contact with the worm-gear driving it. You need to pull the cluster, remove the speedometer from the back, and push everything back together (preferrably with a little epoxy or shaft knurling). Most times the gear is not damaged.

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Gone to the dark side

- Jeff