...

And tdc responded to our newbie with a 530i: > I can help with some of your questions. You have to replace the
> speedometer assembly to fix a broken odometer, and you can find used
Not necessarily true. My '79 528i's odometer didn't work either and my solution is the same as what Bob A. wrote:

>...Assuming your speedometer still works, it is likely that your
>non-functioning odometer is caused by a split drive gear within the
>speedometer assembly.

Replacing it fixed the problem (I fashioned a metal "support: using a washer to repair one of mine -- I have two speedometer assmeblies).

...

Brian
brian.foster_at_ast.com