A6 4F OEM Xenon Retrofit Manual – Audi A6 Retrofit Blog
Amazon.com: DEPO FACELIFT LED Strip HID Headlight Compatible Fits For 2005-2008 Audi A6 C6 [V6 MODELS ONLY] Bi-Xenon D2S Model [Must have Factory HID] - Compatible and Fits For Audi : Automotive
Where to buy this? and some other retrofit | Audi-Sport.net
adaptive light - Audi Technology Portal
Auto-Leveling Headlights Harness for Audi A6 4F, 135,00 €
Xenon Headlights LED DRL suitable for Audi A6 C6 4F (04.2004-2008) Chrome Without AFS - CarPartsTuning.com
Audi "Adaptive Headlight Defective" - How to Fix - YouTube
Audi A6 C6: How to Align Adaptive Headlights | Audiworld
Audi A6 C6: Diagnostic Guide for Adaptive Headlight Problems | Audiworld