When doing replacement or upgrading on 2004 – 2018 Volkswagen Touareg capsule halogen headlamps HID LED Lights Tail with without, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight2004 – 2010 H7
High Beam Headlight2004 – 2010 H9
Front Fog Light2004 – 2010 H11
Back Up Light2004 – 2010 H21W
Brake2004 – 2010 1156
Dome Light2004 – 2007 578
2008 – 2010 6411
Front Side Marker2008 – 2010 12396NA
2004 – 2007 12961
Front Turn Signal2008 – 2010 3457NA
2004 – 2007 PY21W
License Plate2004 – 2010 12844
Parking Light2004 – 2010 12396NA
Rear Turn Signal2004 – 2010 PY21W
Tail Light2004 – 2010 P21/4W
Luggage Compartment2004 – 2010 6411
Courtesy2004 – 2010 12961
Glove Box2004 – 2010 12961
Interior Door2004 – 2010 12256
Map Light2004 – 2010 12961
Low Beam Headlight2004 – 2010 D1S
High Beam Headlight2004 – 2010 H7
Front Fog Light2004 – 2010 H11
Back Up Light2004 – 2010 H21W
Brake2004 – 2010 1156
Dome Light2004 – 2010 578
Front Side Marker2008 – 2010 12396NA
2004 – 2007 12961
Front Turn Signal2008 – 2010 1156
2004 – 2007 PY21W
License Plate2004 – 2010 12844
Parking Light2004 – 2010 12396NA
Rear Turn Signal2004 – 2010 PY21W
Tail Light2004 – 2010 P21/4W
Luggage Compartment2004 – 2010 6411
Courtesy2004 – 2010 12961
Glove Box2004 – 2010 12961
Interior Door2004 – 2010 12256
Map Light2004 – 2010 12961
High Beam and Low Beam Headlight2011 – 2014 D3S
Front Fog Light2011 – 2014 9006
Back Up Light2011 – 2014 921
Brake2011 – 2014 1156
Dome Light2011 – 2014 194
Front Turn Signal2011 – 2014 PSY24WSV
License Plate2011 – 2014 194
Rear Turn Signal2011 – 2014 PY21W
Tail Light2011 – 2012 12821
2013 – 2014 12961
Luggage Compartment2011 – 2014 6411
Courtesy2011 – 2012 12256
Glove Box2011 – 2012 12961
2013 – 2014 DE3175
Interior Door2011 – 2014 194
Map Light2011 – 2014 12961
Stepwell2011 – 2014 12961
High Beam and Low Beam Headlight2015 – 2018 D3S
Front Fog Light2015 – 2018 H8/H11/H16
Back Up Light2015 – 2018 921
Front Turn Signal2015 – 2018 PWY24WSVHTR
Parking Light2015 – 2018 194
Rear Turn Signal2015 – 2018 PY21W
Luggage Compartment2015 – 2018 6411
Glove Box2015, 2017 12818
2016, 2018 DE3175
Interior Door2015 – 2018 194
Stepwell2015 – 2018 12961