Left Footwell Vent Temperature Sensor -G261-, REMOVING AND INSTALLING
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.
The removal and installation is identical to a vehicle with a "Low" A/C system. Refer to Right Footwell Vent Temperature Sensor -G262-, REMOVING AND INSTALLING .