RacingLine DSG Oil Cooler Kit for Volkswagen MK7 GTI, Golf R and Audi 8V S3

Protect your DSG transmission from excessive heat with the RacingLine DSG Oil Cooler Kit for the Volkswagen MK7/MK7.5 GTI, Golf R, and Audi 8V/8V.5 S3. Engineered for MQB applications, this complete cooling system adds a thermostatically controlled, front-mounted oil cooler to help maintain consistent transmission temperatures during spirited driving, track use, and high-power operation.

Quick Fitment Overview

• Fits Audi 8V/8V.5 S3 (2015–2020) – compatible 6-speed DQ250 or 7-speed DQ381 DSG transmissions
• Fits Volkswagen MK7/MK7.5 GTI (2015–2021) – compatible 6-speed DQ250 or 7-speed DQ381 DSG transmissions
• Fits Volkswagen MK7/MK7.5 Golf R (2015–2019) – compatible 6-speed DQ250 or 7-speed DQ381 DSG transmissions

Product Description

The RacingLine DSG Oil Cooler Kit is engineered to improve transmission cooling for Volkswagen and Audi MQB vehicles equipped with compatible DQ250 6-speed or DQ381 7-speed DSG gearboxes. Designed for high-performance street and track applications, the system helps manage excessive transmission oil temperatures that can compromise shifting performance and trigger protective operating modes.

Unlike systems that eliminate the factory oil-to-water cooling arrangement, RacingLine retains this cooling function while adding a dedicated front-mounted oil-to-air cooler. This dual-cooling configuration allows DSG fluid to reach operating temperature normally while providing additional heat dissipation when transmission temperatures rise under demanding conditions.

The system features a high-efficiency 10-row stacked-plate oil cooler positioned in the front airflow. A precision-machined billet aluminum adapter incorporates an internal thermostat that opens at approximately 82°C (180°F), directing hot transmission fluid through the additional cooler only when needed.

RacingLine reports transmission oil temperature reductions of approximately 15–20°C (27–36°F), depending on vehicle configuration, ambient conditions, and driving demands. The complete kit includes a low-profile replacement oil-to-water cooler, braided oil lines, mounting brackets, and installation hardware for a comprehensive DSG cooling upgrade.

Key Features and Benefits

• Helps reduce DSG transmission oil temperatures by approximately 15–20°C (27–36°F) under applicable conditions
• High-efficiency 10-row stacked-plate oil-to-air cooler
• Thermostatically controlled oil flow activates at approximately 82°C (180°F)
• Retains factory oil-to-water cooling while adding supplemental air cooling
• Helps reduce the risk of heat-related torque reduction and shifting issues
• Front-mounted cooler positioning for efficient airflow
• CNC-machined 6061-T6 aluminum components
• AN10 210 Series braided oil lines with stainless steel reinforcement
• Low-profile replacement oil-to-water cooler maintains battery tray clearance
• Designed for high-performance street, track, and hot-climate applications
• Available for compatible DQ250 6-speed and DQ381 7-speed DSG transmissions

Installation and Notes

• Professional installation is recommended
• Select the correct kit based on the vehicle's DSG transmission
• VWR29G7250: DQ250 6-speed DSG compatible with MQB MK7 GTI, Golf R, and Audi 8V S3
• VWR29DQ381: DQ381 7-speed DSG compatible with MQB MK7.5 GTI, Golf R, and Audi 8V.5 S3
• VWR29G7250 is not compatible with US-spec DQ250 applications equipped with the Secondary Air Injection (SAI) system
• Installation requires drilling mounting holes through the front crash bar for the cooler brackets
• Kit includes a 10-row oil cooler, thermostatic adapter block, low-profile oil-to-water cooler, braided oil lines, mounting brackets, and necessary installation hardware
• Verify transmission code and vehicle configuration before ordering
• Follow RacingLine installation instructions and DSG fluid service procedures

Recommended Upgrades

• RacingLine R600 Cold Air Intake
• RacingLine Turbo Inlet Pipes
• RacingLine Performance Intercooler
  

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Frequently Asked Questions

Q: What vehicles does the RacingLine MQB DSG Oil Cooler Kit fit?
A: The kit fits the Volkswagen MK7/MK7.5 GTI and Golf R models, as well as Audi 8V/8V.5 S3 models. The correct version depends on the DSG transmission.

Q: How much can the RacingLine DSG Oil Cooler reduce transmission temperatures?
A: RacingLine reports temperature reductions of approximately 15–20°C (27–36°F). Actual results vary depending on driving conditions, ambient temperature, and vehicle modifications.

Q: Does the RacingLine DSG Oil Cooler replace the factory transmission cooler?
A: The system retains the factory oil-to-water cooling function through a replacement low-profile cooler and adds a dedicated front-mounted oil-to-air cooler for increased cooling capacity.

Q: What is the difference between the DQ250 and DQ381 versions?
A: VWR29G7250 is designed for compatible DQ250 6-speed DSG transmissions, while VWR29DQ381 is designed for compatible DQ381 7-speed DSG transmissions on the MQB platform.

Q: Does the RacingLine DSG Oil Cooler operate continuously?
A: No. The integrated thermostat opens at approximately 82°C (180°F), directing transmission fluid through the additional cooler when increased cooling is required.

Q: Is this DSG Oil Cooler suitable for daily driving?
A: Yes. The thermostatically controlled design allows normal transmission warm-up while providing additional cooling during demanding driving conditions.

Q: Is the RacingLine DSG Oil Cooler recommended for track driving?
A: Yes. The system is designed to help manage elevated DSG fluid temperatures during sustained high-load driving, including track use.

Q: Does the RacingLine DSG Oil Cooler fit US-spec DQ250 vehicles?
A: The DQ250 version is not compatible with US-spec vehicles equipped with the Secondary Air Injection (SAI) system. Confirm the vehicle's configuration before ordering.

Q: What is included in the RacingLine DSG Oil Cooler Kit?
A: The kit includes a 10-row oil-to-air cooler, CNC-machined thermostatic adapter block, replacement low-profile oil-to-water cooler, braided oil lines, mounting brackets, and applicable installation hardware.

Q: Does installation require vehicle modifications?
A: Yes. Installation requires drilling mounting holes in the front crash bar to secure the cooler mounting brackets. Professional installation is recommended.