I have a 1999 XK8 with a burned out bulb in the center instrument cluster. I couldn't find any instructions for how to replace a panel light in the 3 gauge center cluster. So I gave it a shot on my own and here are the easy instructions.

No need to disconnect the power since no plugs are pulled.

1. Gently pull the center wood trim straight out (grip the bottom and the top by the vent.
2. There a 4 - Philips head screws holding the cluster in the dash. Simply unscrew and don't lose the screws.
3. Pull the cluster gently out and on the back of the cluster you will find
2 - twist in bulb holders. Remove the burned out bulb and replace with same size.
4. Reverse the directions to reinstall.

This is about a 10 minute job.

 

good info thanks

 

Panel removal is essentially the same for the 3-gauges as with the nav. panel, as Rev. Sam demonstrates in his video: