(deleted after typo in previous post was corrected)

98 US spec the whole speedo cluster can just be swapped, plug and play, no problem. I've done it a few times. The mileage moves with the cluster. There is no VIN info stored in the cluster, just mileage. And tire size!

The easiest way to check compatibility is to remove the bulb sockets from right side for warning lights and with a help of flashlight to check if it have ETS light(that's for '99 & '00).

If it have Lambda symbol it's for '97 & '98.

Esperado, Here's some info exerpted from a recent PM you haven't read yet (and which you and others might find interesting / useful related to your speedometer 15% off error, and the peculiarities of how your COMBI is programmed)... 0. The "850 OBD-II" V1.3.4 app reports your present clust...

I will take a look what i can do.