c55 healight bulb replacement
regardless you just unscrew the dust shields, twist the square power supply off, i think its red with a lightning bolt (if you have HID), you then unclip the 2 metal clips holding the bulb in but pinching them both in, the bulb should just fall out...
I don't remember the composite way but pretty sure its similar although there wont be a large power supply box to it since composite dont require large amounts of voltage to ignite, but regardless they are standard and you can just google a youtube video im sure







