Speedo reading

[gravel]

If I fit a used speedo to my 206 will it retain the old odometer reading or show the " new " one. Ie is the reading stored in the cars computer or the speedo.

[IanL]

The answer is in both the BSI and the speedo unit. If the two values do not agree, the lower is overwritten by the higher. The process is non-reversible.

[gravel]

Thanks for that. I wanted to change the black faced one for a silver one but will obviously have to look for one with less miles than mine.

[IanL]

Whether you can do that depends on the RPO numbers of your and the donor car (basically build date) and fuel comes into it as well. It looks very complex - you might end up with a non-compatible speedo.