The factory braking system on Volkswagen’s MQB platform, while generally adequate, can struggle under demanding conditions like spirited driving or track use. Upgrading to Rs3 Brake Ducts offers a significant improvement in cooling efficiency, preventing brake fade and ensuring consistent performance. This guide explores the benefits and installation of these ducts.
Why Upgrade to RS3 Brake Ducts?
Many smaller VAG (Volkswagen Audi Group) vehicles utilize air deflectors to direct airflow towards the front brakes. These smaller cars often have limited wheel well space, restricting natural airflow. However, larger MQB platform cars, while designed with more clearance, can still experience brake fade under high stress. This is where RS3 brake ducts prove invaluable. These ducts actively channel air towards the brake rotors, significantly improving cooling capacity and preventing performance degradation.
The RS3 Duct Solution: A Superior Design
Initially, some enthusiasts adapted older Audi TT-RS (2010-2014) and RS3 (2011-2013) brake ducts, designed for larger brake systems and cast alloy wishbones. However, these older designs presented compatibility issues with the smaller brake calipers and pressed steel wishbones found on vehicles like the Mk7 Golf. Modifications were necessary to address clearance problems and devise appropriate mounting solutions. Furthermore, these adaptations often increased aerodynamic drag.
The genuine Audi RS3 brake ducts for the MQB platform, part numbers 8V0 407 811 (left) and 8V0 407 812 (right), offer a more elegant and effective solution. These ducts feature a compact NACA (National Advisory Committee for Aeronautics) design, minimizing drag while maximizing airflow.
Parts and Installation: What You’ll Need
The installation process primarily involves securing the ducts to the front lower control arms (wishbones) using cable ties. The OEM kit includes Hellermann Tyton T120ROS cable ties (N108 219 01), but wider 9mm ties are recommended for a more secure fit.
Parts List:
- 8V0 407 811: Left-side RS3 brake duct
- 8V0 407 812: Right-side RS3 brake duct
- Cable Ties: 9mm wide, heavy-duty (recommended)
Conclusion: Invest in Performance and Reliability
Upgrading to RS3 brake ducts is a worthwhile investment for enthusiasts seeking to enhance the performance and reliability of their MQB platform vehicles. These ducts provide a significant improvement in brake cooling, reducing the risk of fade and ensuring consistent stopping power under demanding driving conditions. The relatively simple installation process and affordable cost make this a highly effective modification. By effectively managing brake temperatures, RS3 brake ducts contribute to a safer and more enjoyable driving experience.
