How do you change out low beam bulb on a 2002 Volkswagen Beetle?
On the back of the housing there is a black plastic "tab" that
slices (rotates) to disengage the headlight housing. Once it is
release the entire unit comes out from the front and the bulb
socket can be removed from the back and the bulb replaced. This one
operation paid for the aftermarket service book for me. You can
replace the bulb in 10 minutes.