2006 jaguar XKR instrument lighting.
Which bulbs are the ones that cause the illumination of various instruments to fail.
The four large bulbs or the four small ones.
Jaguar parts say the number for the illumination number bulbs are XR83865 which are the four small bulbs.

 

Hey Roy! It doesn't matter....If you have taken the time to dig down that far and have the instrument panel out to the point you can see all 8 bulbs.....Only a fool would not replace all of them! Do what PrettyBluefin did and replace the larger ones with LEDs and just buy 4 Little ones ....Now that will make everything look super!!!

Buy (4) #168 LED Bulbs for the Big Bulbs and (4) #37 Sylvania Longlife's for the small ones........

Billy Clyde

 

Welcome to the forum Roy,

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

putting in all new bulbs makes a HUGE difference in both the longevity and heat output. It is time consuming, and can be frustrating to get those tight screws undone, but the $40 cost is well worth it.
here is my updated cluster, night view.

(thank you to Billy for mentioning me)