Easier than I thought to change the bulbs, but be careful not to drop any bits or you will have to remove the under-dash cover (not difficult but nice if you can avoid having to do so).
The bulb looks like the attachments - what you have to do is to
1. remove the two switch knobs (just unscrew anti-clockwise)
2. remove both escutcheons behind the knobs (just pull off)
3. remove four self-tap screws holding the instrument cluster surround - two behind the escutcheons and the two that secure the instrument cluster
4. pull forward the instrument cluster a little so it is free, don't remove it.
5. the surround complete with lighting switches should now move forward enough to remove & replace the bulbs from the top of each switch.
6. Pull bulb out backwards (ie towards front of car) and unplug the bulb, keeping hold of the wire so it doesn't disappear.
7. check bulbs are working by turning the ignition on (the bulbs blow because they are on all the time the ignition is running, night or day).
8. carefully reassemble
Easy when you know how !
