CSF 2015+ Volkswagen Golf/GTI (VAG MQB) Quadruple Pass DSG Water/Auxiliary Engine Radiator

CSF has been making radiators for over 50 years, so they know a thing or two about keeping engines cool. If you're looking to upgrade the cooling system on your 2015 or newer Volkswagen Golf, GTI, Golf R, or Audi A3/S3 with the MQB platform, this high-performance, all-aluminum auxiliary radiator is a solid choice. It’s designed to handle the extra heat generated by higher horsepower builds or demanding track use, ensuring your engine stays at its optimal operating temperature.

What sets this CSF radiator apart is its B-Tube Technology. Instead of a standard oval tube, CSF uses a specially shaped tube that increases the heat transfer surface area by about 15%. This design allows for a dual liquid flow, essentially giving you the cooling efficiency of two smaller tubes in the space of one. Combined with ultra-efficient, multi-louvered fins precisely aligned to maximize airflow, this radiator is built for serious heat rejection. The core is a 2-row, 42mm thick design, and the brackets and connections are CNC machined for a precise, durable fit. It’s a true drop-in replacement, meaning you won't need to modify anything to install it, and you can reuse your factory hoses and mounting hardware.

This radiator is a great option for a range of vehicles, including the Audi A3, S3, TT, TTS, Volkswagen Beetle, Jetta, and Golf R. It features a stealthy black finish and comes with an all-aluminum race-style drain plug for easy maintenance.