I did mine over the Xmas break.
I changed all three as only thefan control was lit and was a bit orangey. However either one bulb was faulty or I damaged it when fitting (and it was a tight fit) as only two light up and yes it's the fan control that doesn't light up!
Of the three areas the fan control is the least important IMHO.
I also tried to do the info centre bulbs but mine isn't the same as noted On a link, as mine has two bulbs which are small are and probably available from a motor factor.
A job for Easter me thinks...
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