98 V8 D1. A month or so ago my speedo and odometer stopped working for half an hour during a trip. 3 days ago it died, it seems for good. I suspect the transducer but I don't know how to test it. I have taken it off, and established that with the ignigition on it is receiving 12 volts, as it should - but I don't know what it's doing with it. I notice that the shaft is sloppy but this may be fine. I also notice that the part number is YBE100540, and that according to one website this supersedes AMR1253. Does this mean mine is a replacement?

Anyhow, questions:
1. is the shaft meant to be sloppy?
2. Is there a simple way of testing it electrically?

Other tips?