Okay, okay, calm down everyone before a cyber-fight breaks out and I have to separate you two. To get the wood piece off on your ML, all you have to do is unclip it. It just snaps in, no screws holding it on. Try starting from the very bottom of the wood and prying it up. Be careful you don't scuff the dash though, put a towel or rag underneath where you're prying. Once you get the wood off, unplug the switches from the backside. Then take the screws out that hold the A/C dial assembly in place. Disconnect the control cables for the dials. Then there's a trick to getting the bulb out of the backside of the dial. You can use a small pair of needle-nose pliers, but don't squeeze too hard or you'll break the bulb. OR you can find a small diameter rubber hose, and slip it over the bulb. It should pull it right out, if it's tight enough.