Holstein Parts Brake Pad Wear Sensors are direct OE replacements that offer perfect fit, form and function for flawless operation that restores your vehicle to factory levels of performance Manufactured with only premium quality materials to ensure rugged, long term performance and the abilty to withstand high brake temperatures of up to 400 degrees C/752 degrees F Holstein sensors include all features of the OE part including (where OE specified): exact OE connectors, weatherproof seals, mounting brackets, and wire overmolding for extra protection against bending and abrasion Exact OE configuration means our sensors fit your vehicle the way the original part did - ensuring a simple, hassle-free installation process so you can get back on the road fast Backed by Holstein Parts 3 year/36k mile warranty - we believe in our parts and our warranty shows it FRONT OR REAR (depending on vehicle); Compatible with select vehicles (Note: options/trim level may affect fitment - verify specific fitment details with fit checker above): MERCEDES-BENZ: 2019 A220, 2019 A250, 2019 AMG GT 53 MERCEDES-BENZ: 2014-15 B Electric Drive, 2013-19 B250, 2016-17 B250e, 2015-19 C300, 2016-18 C350e, 2015 C400, 2017-19 C43 AMG, 2016 C450 AMG, 2014-19 CLA250, 2014-19 CLA45 AMG, 2019 CLS450, 2019 CLS53, 2017-19 E300, 2017-18 E400, 2017-18 E43 AMG MERCEDES-BENZ: 2019 E450, 2019 E53 AMG, 2018-19 E63 AMG S, 2009-19 G550, 2017-18 G550 4x4, 2019 G63 AMG, 2015-19 GLA250, 2015-19 GLA45 AMG, 2016-19 GLC300, 2018-19 GLC350e, 2017-19 GLC43 AMG, 2018-19 GLC63 AMG, 2018-19 GLC63 AMG S