I just got some 6000k bulbs and I was curious how hard it was to replace the factory hidbulbs. I've searched and read that you should remove the whole headlight housing to do so. Is that the only way, or does anyone know of better way to do it? Also If I do remove the headlight housing is it that complicated and will I have to re-aim the headlights manually even though they have the auto-leveling?

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02.5 A4 1.8TQ
-I've done some shit to it

Here are pics I took when I changed mine about 2 weeks ago.
Remove the headlight housing.

Remove the metal clip and open up the back.

Slide the metal clip from the rear of the bulb.

Unclip the old bulb and pull backward.

Remove the connector clip at the bottom.


Reverse instructions with new bulb.


I've removed the headlight housings many times and never had to re-aim them.
Hope this helps.