CSF High-Performance all-aluminum auxiliary radiator for the 2015+ Mercedes-AMG C63 (W205) and related M177/M157 models including the GLE63, GLS63 and AMG GT. It lowers engine water temperatures and serves as the heat-exchange medium for the air-to-water charge-air coolers, reducing intake air temperatures and extending the heat-soak threshold. With roughly double the OEM capacity (2-row 42mm core vs. OEM 26mm), it uses CSF's exclusive B-Tube technology, 6.5mm multi-louvered fins, 100% all-aluminum TIG-welded construction and CNC-machined brackets with OEM-style quick-connect fittings, plus a detachable rock guard. Some applications require two units; installation may require trimming the plastic shroud (see fitment notes).
| Type | High-performance auxiliary radiator (air-to-water charge cooler heat exchange) |
| Material | 100% all-aluminum, TIG-welded |
| Core | 2-row, 42mm (CSF B-Tube technology) vs. OEM 26mm |
| Fins | 6.5mm tall multi-louvered |
| Inlet / Outlet | OEM-style quick-connect, CNC-machined mounting brackets |
| Finish | Mirror-finish hand polish |
| Fit | Drop-in fit; may require trimming plastic shroud (see fitment notes); fits both left and right side |
| Included | Detachable rock guard |
| Warranty | 2-year limited warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017 | Mercedes-Benz | AMG GT | Base |
| 2016-2017 | Mercedes-Benz | AMG GT S | Base |
| 2016-2021 | Mercedes-Benz | C63 AMG | Base |
| 2015-2021 | Mercedes-Benz | C63 AMG S | Base |
| 2020-2022 | Mercedes-Benz | GLE580 | 4Matic |
| 2016-2019 | Mercedes-Benz | GLE63 AMG | 4Matic |
| 2016-2019 | Mercedes-Benz | GLE63 AMG S | 4Matic |
| 2020-2022 | Mercedes-Benz | GLS580 | 4Matic |
| 2017-2019 | Mercedes-Benz | GLS63 AMG | Base |
