My 1989 Carrera 3.2 Coupe speedo stopped working, after being intermittent for 12 months.
We have replaced sensor (twice), serviced speedo unit (twice), replaced magnetic carrier unit inside gearbox (expensive).
We can make it work if the magnetic carrier unit is outside the car, on a lathe, but cannot make it work in situ. Or rather, that it works rarely - ie the first time back in the car, but never again after that.
Desperate for any clues as to what is going on.
We have replaced sensor (twice), serviced speedo unit (twice), replaced magnetic carrier unit inside gearbox (expensive).
We can make it work if the magnetic carrier unit is outside the car, on a lathe, but cannot make it work in situ. Or rather, that it works rarely - ie the first time back in the car, but never again after that.
Desperate for any clues as to what is going on.