2001 Audi A4 Quattro Xenon HID Replacement Bulb | Low Beam – hidreplacement
How to Replace Headlight Bulb for Audi A4 (B6)
Amazon.com: AUXLIGHT H7 H7LL LED High/Low Beam Headlight Bulbs, Replacement for 1996-1997 Audi A4 as Hi/Lo Beam, 1998-2002 as Hi Beam, 12000 Lumens Plug-N-Play Conversion Kit, 6000K Cool White (Pack of 2) :
Replacing a headlight bulb (2001 Audi A4) | sugiryotest