While the PDF covers how it should work, owners frequently report the following real-world issues:
Excellent. It provides detailed diagrams of the 0AQ transfer case, which was developed in collaboration with Borg-Warner . Download Audi Power Transmission Transfer Case 0AQ pdf
Highlights the use of a mechanical self-locking differential (similar to those in the RS4) to ensure immediate power delivery without waiting for sensors to react. Common Issues with the 0AQ System (Not in the PDF) While the PDF covers how it should work,
Unlike older longitudinal Audis where the transfer case was integrated into the transmission, the 0AQ is a separate unit positioned toward the center of the vehicle for better weight distribution. Download Audi Power Transmission Transfer Case 0AQ pdf
Best for DIY enthusiasts, mechanics, or owners who want to understand how their quattro system works.