Rain/Light Recognition Sensor -G397-, Removing And Installing: Removing

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.

-- Switch off the ignition and place the ignition key outside of the vehicle.

-- Remove the interior rearview mirror. Refer to INTERIOR REARVIEW MIRROR, REMOVING AND INSTALLING .

-- Disconnect the connector -3-.

Fig 1: Locating Screwdriver

Courtesy of AUDI OF AMERICA, LLC

-- Insert a narrow screwdriver -5- into the opening as shown and release the retainers on the spring -2- in the direction of -arrows-.

-- Wait one minute so that the silicone pad can be removed without leaving any residue.

-- Loosen the Rain/Light Recognition Sensor -G397- -4- by moving it back and forth and remove it from the mount -1-.

CAUTION:

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

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

-- If the humidity sensor -arrow- is damaged, then the rain/light recognition sensor must be replaced.

Fig 2: Locating Rain/Light Recognition Sensor

Courtesy of AUDI OF AMERICA, LLC

-- Clean the adhesive surface on the windshield with Cleaning Solution :D 009 401 04 .

Any silicone residue must be completely removed.