Rain/Light Recognition Sensor -G397-, REPLACING: Installing

WARNING: This page is about a different car, the 2021 Audi e-tron Quattro and 2019 Audi e-tron Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Install in reverse order of removal and note the following:

CAUTION:

There is a risk of damaging the humidity sensor through improper handling.

- Remove and install the rain/light recognition sensor very carefully.

-- Gently press the grip surfaces -arrows- on the protective cap -2- together and remove from the sensor -1-.

Fig 1: Identifying Protective Cap

Courtesy of AUDI OF AMERICA, LLC

TIP:

To avoid contaminating the silicone pad, remove the protective cap just before installing it.

-- Insert the sensor -4- into the mount -2-.

Fig 2: Identifying Rain/Light Recognition Sensor

Courtesy of AUDI OF AMERICA, LLC

The Rain/Light Recognition Sensor -G397- must not have any embedded objects or bubbles between it and the windshield so that it functions correctly.

-- Press on the clips -1 and 5- until they audibly engage.

-- Connect the connector -3-.

-- After replacing the rain/light recognition sensor, it must be re-coded in "Guided Functions" mode using the Vehicle Diagnostic Tester.