When doing replacement or upgrading on 2009 – 2014 Volkswagen Routan with capsule halogen headlamps HID, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight2009 – 2014 H11
High Beam Headlight2009 – 2014 H11
Front Fog Light2009 9145
2010 – 2014 PSX24W
Back Up Light2009 – 2014 921
Brake2009 – 2014 3157
Dome Light2009 – 2014 578
Front Side Marker2009 – 2014 12396NA
Front Turn Signal2009 – 2014 3457
License Plate2009 – 2014 168
Parking Light2009 – 2014 3457
Rear Turn Signal2009 – 2014 3157
Inner Tail Light2009 – 2014 161
Outer Tail Light2009 – 2014 3157
High Beam and Low Beam Headlight2009 – 2014 D1S
Front Fog Light2009 9145
2010 – 2014 PSX24W
Back Up Light2009 – 2014 921
Brake2009 – 2014 3157
Dome Light2009 – 2014 578
Front Side Marker2009 – 2014 12396NA
Front Turn Signal2009 – 2014 3457NA
License Plate2009 – 2014 194
Parking Light2009 – 2014 3457
Rear Turn Signal2009 – 2014 3157
Inner Tail Light2009 – 2014 161
Outer Tail Light2009 – 2014 3157