Not sure if this DIY was all ready done... if it has, I didnt find it, so here it goes. My goal is to replace my stock foglight bulbs with some bright white H8 bulbs I got from Hoen-USA.
Before (dirty cover, I know):
After (yeah, yeah... the cover is still dirty):
So first get below the front bumper and pretty much remove every screw in site (8mm socket). Mine might look a little different since I have the OEM aero kit on. Also note, 3 of the screws are holding a ruber piece on. Those are also removed.
Make sure the wheel is turned all the way out and in the wheel well remove the nut (10mm).
There are also 2 more 8mm screws further up in the wheel well, right behind that yellow reflector we all love so much. No picture of those...
After all those screws are removed, you can pull the cover off, enough to get your hand in to replace the bulb. You can see the bulb in the second picture below.
Notice there is a pin holding the bulb in. So you need to reach in and remove the connector BEFORE trying to remove the bulb. Pinching the bottom end of the plug will allow you to remove it. Once it's removed, you can turn the bulb to remove it and replace. Remember not to touch the bulb.
Just reverse the process to get everything back together.