[INNOVATIVE TECHNOLOGY] - Every Bosch Oxygen Sensor benefits from the technological and manufacturing experience gained from decades of production since first inventing the Oxygen Sensor in the late 1960's, ensuring long-lasting performance [FACTORY TESTED] - Seared appearance of protection tube is a result of a 100 percent fully functional quality test to ensure every Bosch manufactured sensor meets Bosch's rigorous standards for quality and performance [STAINLESS STEEL BODY] - Exclusive double laser-welded stainless steel body is totally submersible and sealed tight to protect against damage from exhaust emissions - ensuring longer sensor service life [FAST ACTING HEATER] - Fast-acting heater optimizes sensor operation on Planar and 3, 4, and 5 wire Thimble type sensors allowing the oxygen sensor to reach its operating temperature quicker - within seconds - for optimum performance [READY TO INSTALL] - True Direct-fit OE connectors and harnesses, along with threads pre-coated with anti-seize compound right out of the box, make installation simple and easy Compatible with select vehicles (Note: engine may affect fitment - verify specific fitment details, including sensor position, with fit checker above): MERCEDES-BENZ: 2019-21,2023-24 AMG GT 63, 2019-21,2023 AMG GT 63 S, 2015-16 CLS400, 2014-15 E400 Compatible with (continued): MERCEDES-BENZ: 2018-21 E63 AMG S, 2014-18 G63 AMG, 2013-16 GL450, 2013-16 GL550, 2013-16 GL63 AMG, 2017-23 GLC43 AMG, 2016-18 GLE350, 2016-19 GLE400, 2017-19 GLE43 AMG, 2016 GLE450 AMG, 2016-17 GLE550 Compatible with (continued): MERCEDES-BENZ: 2016-18 GLE550e, 2020-24 GLE580, 2016-19 GLE63 AMG, 2016-19,2021-24 GLE63 AMG S, 2021-24 GLE63 AMG S SUV, 2017-19 GLS450, 2017-19 GLS550, 2020-24 GLS580, 2017-19,2021-24 GLS63 AMG Compatible with (continued): MERCEDES-BENZ: 2021-24 Maybach GLS600, 2018-20 Maybach S560, 2016-22 Metris, 2015 ML400, 2012-15 ML550, 2012-15 ML63 AMG, 2018-20 S450, 2018-21 S560, 2018-21 S63 AMG