The Airtec Motorsport Auxiliary Radiators are upgraded auxiliary radiators for the 1.8 and 2.0 TSI EA888 Gen 4 engines from 2020 onwards, suitable for track use and sporty road driving. There is a version for the DSG gearbox (right-hand side) and one for the engine coolant (left-hand side).
During prolonged track or motorway use, particularly in cars with higher power outputs, both the DSG gearbox oil and the engine coolant can become too hot to provide adequate protection. The ECU then limits the torque and extends the gear-change times, making the car feel noticeably less responsive. Persistent overheating can even cause permanent damage.
Airtec therefore increases the size, volume and capacity of the original auxiliary radiators on either side of the bumper. By utilising the available space, a replacement radiator has been developed that is wider and thicker. As a result, the capacity increases by 67 per cent compared to the original, from 1.08 to 1.8 litres, whilst the frontal area is also larger.
The core also features a quadruple-pass design, whereby the coolant is circulated up and down through the core four times before it exits. As the coolant remains in the radiator for longer, the temperature drops further and the car continues to perform at its optimum level for longer. A removable stone guard protects the larger core from flying debris.
The radiators use the original mounting points and coolant connections. They feature a high-quality black powder-coated finish, and all fixing materials and a comprehensive fitting guide are included.
Please note: installation requires minor cutting work on the original air duct. Not all DSG models are fitted with a DSG radiator; please check physically whether your car has one before ordering.
Advantages
• 67% greater capacity than the original•
Quadruple-pass design for improved
cooling• Available for left and
right-hand drive• Removable stone
guard• Fits the original mounting points and connections•
Supplied complete with fixing materials and instructions
Technical specifications
• Width: 200 mm (original: 188 mm)
• Height: 216 mm (original: 216 mm)
• Depth: 42 mm (original: 26.5 mm)
• Capacity: 1.8 litres (original: 1.08 litres)
• Right-hand side:
DSG• Left-hand side: engine coolant
Compatibility
• Audi S1
8X• Audi S3
8V• Audi S3
8Y• Audi TT 8S 2.0
TSI• Seat Leon Cupra
5F• VW Golf R Mk8
Frequently Asked Questions
What is the difference between the left and right radiators?
The right-hand side cools the DSG gearbox, whilst the left-hand side cools the engine coolant.
How much greater is the capacity compared to the original?
The capacity increases by 67 per cent, from 1.08 to 1.8 litres, thanks to a wider and thicker core with a larger frontal area.
What does the quadruple-pass design do?
In this design, the coolant is circulated up and down through the core four times, meaning it remains in the radiator for longer and the temperature drops further.
Are any modifications required for fitting?
Some minor cutting of the original air duct is required. Furthermore, the original mountings and coolant connections are used. Not all DSG models have a DSG radiator; please check this physically before ordering.
