The nitrogen oxide sensors on your Mercedes-Benz are used to reduce emissions by ensuring that the engine burns its fuel efficiently. Wires:8 Package Included:1*nox sensor Fitment: 2016 Mercedes-Benz E 250 Bluetec, Bluetec 4Matic 2.1L L4 - Diesel 2015 Mercedes-Benz E 250 Bluetec, Bluetec 4Matic 2.1L L4 - Diesel 2014 Mercedes-Benz E 250 Bluetec, Bluetec 4Matic 2.1L L4 - Diesel 2016 Mercedes-Benz GL 350 Bluetec 4Matic 3.0L V6 - Diesel 2015 Mercedes-Benz GL 350 Bluetec 4Matic 3.0L V6 - Diesel 2014 Mercedes-Benz GL 350 Bluetec 4Matic 3.0L V6 - Diesel 2013 Mercedes-Benz GL 350 Bluetec 4Matic 3.0L V6 - Diesel 2017 Mercedes-Benz GLS 350 d 4Matic 3.0L V6 - Diesel 2015 Mercedes-Benz ML 250 Bluetec 4Matic 2.1L L4 - Diesel 2014 Mercedes-Benz ML 350 4Matic, Base, Bluetec 4Matic 3.0L V6 - Diesel, 3.5L V6 - Flex, 3.5L V6 - Gas 2013 Mercedes-Benz ML 350 4Matic, Base, Bluetec 4Matic 3.0L V6 - Diesel, 3.5L V6 - Flex, 3.5L V6 - Gas 2012 Mercedes-Benz ML 350 4Matic, Bluetec 4Matic 3.0L V6 - Diesel, 3.5L V6 - Flex, 3.5L V6 - Gas 2017 Mercedes-Benz Sprinter 2500 Base 3.0L V6 - Diesel 2016 Mercedes-Benz Sprinter 2500 Base 2.1L L4 - Diesel, 3.0L V6 - Diesel 2015 Mercedes-Benz Sprinter 2500 Base 2.1L L4 - Diesel, 3.0L V6 - Diesel 2014 Mercedes-Benz Sprinter 2500 Base 2.1L L4 - Diesel, 3.0L V6 - Diesel 2017 Mercedes-Benz Sprinter 3500 Base 3.0L V6 - Diesel 2016 Mercedes-Benz Sprinter 3500 Base 2.1L L4 - Diesel, 3.0L V6 - Diesel 2015 Mercedes-Benz Sprinter 3500 Base 2.1L L4 - Diesel, 3.0L V6 - Diesel 2014 Mercedes-Benz Sprinter 3500 Base 2.1L L4 - Diesel, 3.0L V6 - Diesel Note:Please make sure that the part number and the item picture fit for your car before purchase.