[Fazerkid]

Doctorchopper i have the same problem and asked here before...
I think the UK models only came with the Digital A/C set up.. Us Irish did not get the Option :-(

The Irish only got the slider manual non-A/C heater like yourself..
Maybe your on our side of the water..
Anyway i believe they are not illuminated as i know 3 Nav owners who all say they are not illuminated

 

[Fazerkid]

There were some UK Models that came with Manual A/C. Seems daft they aren't lit up!

My T4 Heater Switches used to light up after i jiggled the direction switch.

Have it out and take a look, you'll soon answer the question as to whether they are lit or not.

I suffered in the recent cold spell with loads of my lights in the dash packing up, bought some new LED's off the old fleabay and bobs your uncle, bright as anything now!

Link?

 

[Fazerkid]

Good man