The Bosch ACC radar unit (MQB H04 0194) in the Skoda Superb III requires precise alignment for proper functionality. This article details a successful DIY repair and alignment of the ACC radar after bracket failure, highlighting the importance of VCDS in diagnosing and clearing related fault codes. The module is centrally located behind the front grille, accessible by removing the plastic covers with the hood raised.
The original mounting bracket fractured due to age and road impacts, causing misalignment and fault codes. Using VCDS, the fault was identified. Careful measurements were taken from the old bracket to ensure the new bracket was as close to the original alignment as possible. It’s crucial to remember that VCDS will not clear the fault until a complete re-learn procedure is performed.
Surprisingly, after a short test drive of approximately 10 miles, the ACC fault light extinguished, and the system began operating normally. Adaptive Cruise Control (ACC) functionality was thoroughly tested in various scenarios, including approaching stationary traffic and encountering cyclists. Braking performance and obstacle recognition were restored to pre-failure levels.
While this DIY alignment proved successful, it’s important to emphasize that professional alignment using the specialized fixture is recommended. This ensures optimal performance and accuracy of the ACC system. However, this experience demonstrates that in certain situations, a careful DIY approach can temporarily restore functionality, allowing for more convenient scheduling and potentially lower repair costs at a qualified workshop.
Although the initial DIY alignment was successful, it’s recommended to have the ACC radar professionally aligned using the correct fixture. This ensures long-term reliability and accuracy of the system. VCDS proved invaluable in diagnosing the fault and confirming the success of the repair. Using Vcds Skoda Superb Iii owners can monitor and troubleshoot their ACC system effectively.
