Ive just done this job on mine. There are three different types of bulb that go on the back of the panel, and the EPC system that the dealer uses is absolutely useless in identifying the bulbs on your vehicle, so you have to take your one out, and take it to the dealer for the proper replacement. A lot of the bulbs come with the holder connected to the bulb so you have to buy them from the dealer if you want to be sure of what you are getting.
I have an adjustable steering wheel so I managed to get the cluster out with a bit of wriggling and tugging and pushing.
You need to use a modified coat hanger to pull the dash out. The coat hanger should have a right angled bend in it about 5mm in length and you poke it in on the sides of the dash ( Where the illumination controls are, and the clock controls), hook it to the back of the dash and pull it out. It can be quite tight to remove, but is held on simply by friction.
BE VERY CAREFUL AS YOU CAN EASILY DAMAGE THE CLUSTER.
You also have to pop off the lower panel above your feet and coax it out by hand from behind as well, just to aid it to come out.
Remove the blown bulb by turning the bulb holder and take it to the dealer, noting the wattage written on the back of the cluster.