Audi A4 B9 Engineering Menu [2021] Here
For the brave, the Engineering Menu transforms the B9 from a luxury commuter into a data-rich engineering platform. For the careless, it is a fast track to a dealer service bill. Drive smart, code smarter.
Accessing the Engineering Menu on your Audi A4 B9 requires a few simple steps. Please note that these steps may vary depending on your vehicle's software version and configuration. audi a4 b9 engineering menu