Checking the Antenna Wire
WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Before starting the repair, determine which antenna wire using the gauge.
- -1- System RG 174 = blue
- -2- System RTK 031 = gray
The positioners on the heads of the tools are color coded on both systems.