How do you change light bulb ring BMW 5series?

E60? can be done with the headlight in the car, is a pain in the A!! remove round cover on back of lamp. The corrona light bulb socket/holder is shiny brown. 1/3 turn removes it. Putting in is the hard part, usually can only use 2 fingers to put in and turn. I have had some better success with hose removal needle nose pliers.