Rain/Light Recognition Sensor -G397-, REMOVING AND INSTALLING: Removing

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-- 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 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-.

Fig 2: Locating Rain/Light Recognition Sensor

Courtesy of AUDI OF AMERICA, LLC

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.

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

Any silicone residue must be completely removed.