In Audi single-zone Climatronic hidden menu you can easily access secret diagnostic readouts of your Audi A2, A3 8L, A4 B5 like battery voltage, car speed, engine RPM, sensors readout, system DTCs and much more.
Audi RNS-D hidden menu (diagnostic service mode of Navigation Plus) can help you with troubleshooting issues with GPS navigation and radio tuner in your Audi.
You can test FM tuner signal, GPS position, software version, tire settings and much more.
Audi navigation systems look similar but in differences between them are significant. The confusion is even stronger since most system use very similar “Audi Multi Media Interface” splash screen and user interface.