How to change the headlight bulb on an Audi A4?

The headlight bulb on my Audi A4 has burnt out and I need to replace it. Can someone please provide step-by-step instructions on how to do it?

To change the headlight bulb, first locate the back of the headlight housing. You can access it from the engine bay. Once you locate the back of the housing, twist the cap counterclockwise and remove it. Then, you can easily remove the old headlight bulb and replace it with the new one. Make sure to not touch the new bulb with your bare hands, as the oils from your skin can cause it to malfunction. Finally, screw the cap back on and you're good to go!