QS, if you look under the hood, you will see that it requires you to use a torx screwdriver to remove the protective cap to get to the bulb. Look closer to only find that there's no room for the screwdriver. In order to get more room to work with, you'll need to undo 4 bolts/screws holding the entire light assembly and slide it forward (you can only slide it approx 1-2 inches). If that's still not enough room for you to get to the protective cap screws, then you may have to drop the bumper cover and remove the light assembly. Unlike the pre-facelift (pre-'04), there is no trim piece under the light assembly to help with removal. The same (headlight removal) process applies if you ever need to replace the turn signal bulbs. This is a very STUPID design considering how much engineerings BMW puts into their cars.