The OS upgrade is universal. The nav drive will load whatever language packs the vehicle has been coded for.

As for risks, it is small if you follow the proper procedures and use a high quality CD-R to make the boot disk. But there is always a risk (more so in a Mk3 then a Mk4). That said, I've down OS updates on dozens and dozens of units and have never personally encountered a problem.

You will need a KeyCD, and 3-1/63 is the latest update for a Mk3 (using v22 or higher will take you to that level)

:xoutpost:

__________________

Xoutpost.com - where you come for the information but stay for the friendships