How do you fix the speedoometer and odometer on a 1973 Super Beetle?

Answer 1

Did you check to make sure the speedo cable isn't broken. Disconnect both ends and twist the inner cable and look at the other end to see if it moves. It should move easily.

You can take a short cut and just disconnect the speedo end and have someone rotate the left wheel and you should be able to see the inner cable rotate.

The one on the left wheel is attached to the grease/bearing cover with a c-clip. Remove the c-clip then take the cover off (so you can reattach it) and it will just pull out of the hole on the axle side. The grease/bearing cover actually turns the cable as the end of the cable is square to fit in the cover hole that is square. Sometimes the hole will round out and the cable won't rotate with the cover.