panel round the dials just clips off, use thin screwdriver.
theirs then a few screws which hold the surround in place, remove all these, think u will have to remove ashtray and theirs screws near that area too, the whole surroubd comes off 9dead easy to do)
then theirs 4 screws holding the heater controls in place, remove them and just tilt the unit forwards so u can get acces to the bulb holder
only 1 bulb as standard on all mk 3 models
dials vairy dependant on year, older ones has lots of bulbs, most for the warning lights etc like handbrake etc etc, lates ones use chip leds and only have a couple of user replaceable bulbs, these are for the indicator arrows and the 2 that light the face of the dials up, all years only have 2 that illuminate the dial faces, 10 min job at the most to change
hope this helps /makes sense