Audi VW DSG/Heat Exchange - CSF Racing 5Q0121251HA

DSG/Heat Exchanger

• A high performance / race-grade, all-aluminum, quadruple-pass DSG transmission water-to-oil heat exchanger. This new component is multi-fit that can also be installed (with no modifications) as an upgraded auxiliary radiator for maximum cooling performance. (CSF #8132)

CSF is proud to announce the release of its highly anticipated MQB cooling components. Finally, an aftermarket high-performance cooling solution now available to tackle the many overheating issues that have plagued this otherwise great track-worthy platform. The Ultimate MQB cooling system, exclusively by CSF, is designed to keep engine water, as well as both transmission and engine oil temperatures in check and at optimal levels, even under the most demanding race conditions. By utilizing CSF’s new suite of coolers in either a 1,2, or 3 piece configuration, it allows drivers the ability to unleash their car’s full potential for extended periods during racing conditions.

The MQB cooling package consists of the following “drop-in fit” all-aluminum components by CSF. Both utilizing CSF’s B-tube technology. CSF’s triple-pass technology allows the coolant to flow through the radiator core 3x rather than just flowing across the surface of the core once. This allows cooler ambient air to exchange heat with the coolant for a longer period of time, generating the lowest outlet temperature possible.

Observations From Driving:

• Oil temperature seems to be consistently much lower by around 10-15°C (50-59°F), allowing me to use all of the revs all of the time without a care for oil temp. It sits at around 125°C (257°F) max now and I’ve never seen it go above 130°C (266°F) (this used to happen after around 2-3 “fast laps” with OEM set-up).
• Oil temperature now peaks and flat lines throughout the sessions. Before it would slowly grow to around 130°C (266°F) and then rise uncontrollably, very quickly and then not be able to cool down. Every time you would jump back on the throttle to drive fast, the oil temperature would spiral out of control again (talking 14°C+ (284°F with EASE).

Observations From Logs:

• Engine coolant temperature does not go above 100.5°C (212.9°F)

What We Can Say For Sure:

• Engine Oil Temperatures are reduced and maintained consistently during full load/rpm
• Engine coolant temperatures are maintained in the optimum range
• DSG oil temperatures rises and falls in line with the engine coolant temperature (well within ideal operating parameters)