Hi all! Just a stupid question: How to adjust my X's HID headlight aiming level? I saw two white thing on the top of each headlight, which one is for which function?

By the way, is there any forum like this for BMW E46 3ers?

Thanks!

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--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.