When doing replacement or upgrading on 2004 – 2006 Volkswagen Phaeton, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 2004 – 2006 D1S
High Beam Headlight 2004 – 2006 9005XS
Front Fog Light 2004 – 2006 H8/H11/H16
Back Up Light 2004 – 2006 921
Front Side Marker 2004 – 2006 194
Front Turn Signal 2004 – 2006 H21W
License Plate 2004 – 2006 6418
Parking Light 2004 – 2006 194
Glove Box 2004 – 2006 12256
Interior Door 2004 – 2006 12256
Map Light 2004 – 2006 12961
Stepwell 2004 – 2006 12256
Trunk 2004 – 2006 12961