After approx 1 hour of driving about I lose completely the instrument lights (I drive aound in "auto" position D on the lightstalk).

The headlights are on and I think the radio lights on the console etc stay on.

In the morning or after parking for an hour or two everything works fine again.

Put it into Jag garage (whilst they we doing suspension) and mentioned this fault but they could not find any fault (I guess cos it's intermittant).

I'm guessing that the cabin and instruments heat up after an hour and there may be a dogey connection or joint somewhere?

 

This thread may give you some clues as to places to check: https://www.jaguarforums.com/forum/x...working-56320/