Mercedes AMG M157 / M278 / M133 High-Performance Auxiliary Radiator

The 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).

Features

• 2-Row 68mm High-Performance Core w/ CSF's Exclusive B-Tube Technology vs (OEM 1-row 42mm core) - The Industry's Highest Capacity Offering!
• Ultra-Efficient, 6.5mm Tall Multi-Louvered Fins for Maximum Surface Area Contact
• 100% All-Aluminum TIG-Welded Construction
• Individually Leak and Pressure Tested
• CNC Machined Mounting Brackets and OEM Style "Quick Connect" Inlet/Outlet
• 1 Hour "Mirror Finish" Hand Polish
• Includes Detachable Rock Guard
• Multi-Fit - Fits Both Left & Right Side (Sold Individually)
• True "Drop-in Fit" Requires No Modifications to Install

Applications

• 2014-2019 Mercedes-Benz CLA45 AMG - Turbocharged 2.0L L4
• 2012-2014 Mercedes-Benz CLS63 AMG - Turbocharged 5.5L V8
• 2014-2018 Mercedes-Benz CLS63 AMG S - Turbocharged 5.5L V8
• 2012-2013 Mercedes-Benz E550 - Turbocharged 4.7L V8
• 2012-2015 Mercedes-Benz E63 AMG - Turbocharged 5.5L V8
• 2014-2016 Mercedes-Benz E63 AMG S - Turbocharged 5.5L V8
• 2013-2018 Mercedes-Benz G63 AMG - Turbocharged 5.5L V8
• 2016-2018 Mercedes-Benz G65 AMG - Turbocharged 6.0L V12
• 2013-2016 Mercedes-Benz GL63 AMG - Turbocharged 5.5L V8
• 2015-2020 Mercedes-Benz GLA250 - Turbocharged 2.0L L4
• 2015-2019 Mercedes-Benz GLA45 AMG - Turbocharged 2.0L L4
• 2017 Mercedes-Benz Maybach S550 - Turbocharged 4.7L V8
• 2018-2020 Mercedes-Benz Maybach S560 - Turbocharged 4.0L V8
• 2016-2017 Mercedes-Benz Maybach S600 - Turbocharged 6.0L V12
• 2018-2020 Mercedes-Benz Maybach S650 - Turbocharged 6.0L V12
• 2012-2015 Mercedes-Benz ML63 AMG - Turbocharged 5.5L V8
• 2014-2017 Mercedes-Benz S550 - Turbocharged 4.7L V8
• 2018-2020 Mercedes-Benz S560 - Turbocharged 4.0L V8
• 2015-2017 Mercedes-Benz S600 - Turbocharged 6.0L V12
• 2015-2016 Mercedes-Benz SL400 - Turbocharged 3.0L V6
• 2017-2020 Mercedes-Benz SL450 - Turbocharged 3.0L V6
• 2013-2020 Mercedes-Benz SL550 - Turbocharged 4.7L V8
• 2013-2019 Mercedes-Benz SL63 AMG - Turbocharged 5.5L V8
• 2013-2018 Mercedes-Benz SL65 AMG - Turbocharged 6.0L V12

OEM Part Numbers

• Mercedes-Benz: 099 500 32 03
• Mercedes-Benz: 099-500-32-03
• Mercedes-Benz: 0995003203

Vehicle Fitment