MB makes a special tool for pulling the instrument cluster. However, I've been advised by a very experienced independent MB mechanic to--take it to the MB dealership and pay the $70/hour to have the bulb replaced.
The problem is that the faceplate on the instrument cluster cracks--according to my source--about 80% of the time when you try to pull the instrument cluster--even when you use the special tools. And the replacement instrument cluster is about $500!
So, the advice is to let the MB dealer take the risk.