Where are those screws located? Sorry about the stream of questions, but I don't know anything about headlamp adjustments - never even heard about them before I purchased the Hella ones.

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1999 Mercedes-Benz S600, 103K miles - garage queen
1988 Mercedes-Benz 560SEL, 89K miles - daily driver
2007 Hyundai Sonata Limited, 31K - daily driver