2006 XK8 convertible....

Earlier this year I successfully replaced the coolant temperature gauge display bulb (I used a Wagner 194 clear bulb) and both climate control temperature display bulbs (I used two KT925 clear bulbs). Reverend Sam's excellent videos pertaining to these two bulb replacement jobs were invaluable in guiding me through the process in both cases....

Last night while driving this car to exercise it, I noticed that the dashboard buttons turning on/off the windshield defroster and the rear window defroster no longer light up automatically whenever the headlamps are on. What replacement bulbs are required for these two on/off buttons, and what is the process for accessing them for replacement? And is there a video showing how to do this job as well?

The actual defroster functions work normally. I just want the buttons to illuminate again whenever the headlamps are on....

Thanks for any advice you can provide....

 

I recently replaced a few bulbs in that central control area. I took some pics along the way. I just updated my working thread with a few pics that might help.