Fits: 2012–2014 Mercedes-Benz CLS63 AMG 2012–2013 Mercedes-Benz E550 2012–2015 Mercedes-Benz E63 AMG 2013–2020 Mercedes-Benz SL550 2013–2019 Mercedes-Benz SL63 AMG 2013–2018 Mercedes-Benz G63 AMG 2013–2018 Mercedes-Benz SL65 AMG 2013–2016 Mercedes-Benz GL63 AMG 2012–2015 Mercedes-Benz ML63 AMG 2014–2019 Mercedes-Benz CLA45 AMG 2014–2016 Mercedes-Benz E63 AMG S 2014–2018 Mercedes-Benz CLS63 AMG S 2014–2017 Mercedes-Benz S550 2015–2017 Mercedes-Benz S600 2015–2020 Mercedes-Benz GLA250 2015–2019 Mercedes-Benz GLA45 AMG 2015–2016 Mercedes-Benz SL400 2016–2017 Mercedes-Benz Maybach S600 2016–2018 Mercedes-Benz G65 AMG 2017 Mercedes-Benz Maybach S550 2017–2020 Mercedes-Benz SL450 2018–2020 Mercedes-Benz S560 2018–2020 Mercedes-Benz Maybach S560 2018–2020 Mercedes-Benz Maybach S650 CSF8198RadiatorsThe High-Performance All-Aluminum Auxiliary Radiators work in conjunction with the rest of the cooling system to reduce temperatures throughout. This is critical as the Auxiliary Radiators not only help keep engine water temperatures lower, but also are utilized as the heat exchange medium in the air-to-water charge-air coolers for the turbocharger system to reduce intake air temperatures (IATs). Overall, the Auxiliary Radiators larger capacity prolongs the heat soak threshold and assists in keeping temperatures in optimal ranges. The included, detachable rock guard offers protection against the build-up of debris, as well as possible core punctures ? unlike the OEM auxiliary radiators, which have little protection against the elements. CSF recommends purchasing two Auxiliary Radiators to replace both left and right OEM units (for vehicles with two from the factory). For maximum cooling performance, we advise installing in conjunction with the Front Mount Heat Exchanger (CSF #8197).CSF radiators are offered in the industry's widest variety, servicing thousands of vehicle-specific and universal applications … including every brand from Acura to Volkswagen. Whether your radiator is copper-brass, plastic-copper-brass, plastic-aluminum, or all-aluminum, CSF has you covered with the same materials and style as OE. CSF manufactures the highest quality aftermarket replacement radiators, with the strongest and most efficient components available in the industry. All CSF radiators undergo a rigorous testing process in their state-of-the-art testing lab. CSF's procedures and requirements set the bar for cooling system reliability and performance: * Individually leak tested * Vibration-cycle tested * Thermal-cycle tested * Wind tunnel tested for optimal radiator core cooling efficiency * Burst pressure and impulse-cycle tested for strength * Salt spray tested for corrosion protection * 10 ft. box drop test to ensure packaging protection * 30-point fitment inspection on critical dimensions to ensure drop-in fit with no modifications (where applicable)