1985 380 SL odometer does not work

[simonejb]

I have a 1985 380sl, the odometer does not work, any suggestions.
Does anyone have a wiring diagram for this?

[flbenz]

I think there are posts on this as the usual problem is a broken gear.
I considered this DIY myself for my 76 450sl but decided it might be wiser just to have it fixed. There's a guy that does it for $80 or so, I think.
I can find the name if you need it.