When doing replacement or upgrading on 2006 – 2017 Mercedes-Benz E350 E250 E550 capsule halogen headlamps HID with, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Dome Light 2014 – 2016 6411
Interior Door 2014 – 2016 194
Map Light 2014 – 2016 12961
Stepwell 2014 – 2016 12961
Trunk 2014 – 2016 194
Dome Light 2013 – 2016 6411
Interior Door 2013 – 2016 194
Map Light 2013 – 2016 12961
Stepwell 2013 – 2016 12961
Trunk 2013 – 2016 194
Low Beam Headlight 2006 – 2012 H7
High Beam Headlight 2006 – 2012 H7
Front Fog Light 2008 – 2012 H8/H11/H16
Back Up Light 2008 – 2012 921
Dome Light 2008 – 2012 578
2006 – 2007 6411
Front Side Marker 2006 – 2012 194
Front Turn Signal 2006 – 2007 2357NA
2008 – 2012 3457NA
License Plate 2008 – 2012 12961
2006 – 2007 6418
Parking Light 2008 – 2012 12961
Courtesy 2006 – 2007 6418
Glove Box 2006 – 2007 6418
2008 – 2012 DE3423
Interior Door 2008 – 2012 194
Map Light 2008 – 2012 12961
2006 – 2007 H6W
Rear Reading Light 2008 – 2012 194
Stepwell 2008 – 2012 12961
Trunk 2008 – 2012 194
2006 – 2007 6418
Low Beam Headlight 2006 – 2007 D2S
High Beam Headlight 2006 – 2007 H7
High Beam and Low Beam Headlight 2008 – 2012 D1S
Front Fog Light 2008 – 2012 H8/H11/H16
Back Up Light 2008 – 2012 921
Dome Light 2008 – 2012 578
2006 – 2007 6411
Front Side Marker 2006 – 2012 194
Front Turn Signal 2006 – 2007 2357
License Plate 2008 – 2012 12961
2006 – 2007 6418
Courtesy 2006 – 2007 6418
Glove Box 2006 – 2007 6418
2008 – 2012 DE3423
Interior Door 2008 – 2012 194
Map Light 2008 – 2012 12961
2006 – 2007 H6W
Rear Reading Light 2008 – 2012 194
Stepwell 2008 – 2012 12961
Trunk 2008 – 2012 194
2006 – 2007 6418
Dome Light 2013 – 2017 6411
Interior Door 2013 – 2017 194
Map Light 2013 – 2017 12961
Stepwell 2013 – 2017 12961
Trunk 2013 – 2017 194
Low Beam Headlight 2007 – 2012 H7
High Beam Headlight 2007 – 2012 H7
Front Fog Light 2008 – 2012 H8/H11/H16
Back Up Light 2008 – 2012 921
Dome Light 2008 – 2012 578
2007 6411
Front Side Marker 2007 – 2012 194
Front Turn Signal 2007 2357NA
2008 – 2012 3457NA
License Plate 2008 – 2012 12961
2007 6418
Parking Light 2008 – 2012 12961
Courtesy 2007 6418
Glove Box 2007 6418
2008 – 2012 DE3423
Interior Door 2008 – 2012 194
Map Light 2008 – 2012 12961
2007 H6W
Rear Reading Light 2008 – 2012 194
Stepwell 2008 – 2012 12961
Trunk 2008 – 2012 194
2007 6418
Low Beam Headlight 2007 D2S
High Beam Headlight 2007 H7
High Beam and Low Beam Headlight 2008 – 2012 D1S
Front Fog Light 2008 – 2012 H8/H11/H16
Back Up Light 2008 – 2012 921
Dome Light 2008 – 2012 578
2007 6411
Front Side Marker 2007 – 2012 194
Front Turn Signal 2007 2357
License Plate 2008 – 2012 12961
2007 6418
Courtesy 2007 6418
Glove Box 2007 6418
2008 – 2012 DE3423
Interior Door 2008 – 2012 194
Map Light 2008 – 2012 12961
2007 H6W
Rear Reading Light 2008 – 2012 194
Stepwell 2008 – 2012 12961
Trunk 2008 – 2012 194
2007 6418