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

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Install in the reverse order of removal. Note The Following:

NOTE:

Replace the silicon pad.

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

Fig 1: Cleaning Sensor Contact Surface On Windshield With Cleaning Solution D 009 401 04

Courtesy of AUDI OF AMERICA, LLC

NOTE:

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

-- Spray the entire surface of the silicone pad -1- with the Cleaning Solution:D 009 401 04 and insert the sensor into the mount.

Fig 2: Spraying Entire Surface Of Sensor Foil With Cleaning Solution D 009 401 04 And Inserting Sensor In Mirror Base

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

The Rain/Light Recognition Sensor -G397- must have no embedded objects or bubbles between it and the windshield to function correctly.

-- Press the retaining clip onto the mounting plate until it audibly engages.

Fig 1: Locating Rain/Light Recognition Sensor

Courtesy of AUDI OF AMERICA, LLC

Install in the reverse order of removal. Note The Following:

CAUTION:

Risk of damage to the humidity sensor.

The humidity sensor -arrow- on the rain/light recognition sensor -1- is extremely sensitive and must not be damaged.
A damaged humidity sensor must be replaced.

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

Fig 2: Identifying Protective Cap

Courtesy of AUDI OF AMERICA, LLC

NOTE:

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

-- Spray the entire surface of the silicone pad -3- with the Cleaning Solution:D 009 401 04 .

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

Fig 3: Identifying Rain/Light Recognition Sensor

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

The Rain/Light Recognition Sensor -G397- must have no embedded objects or bubbles between it and the windshield to function correctly.

-- Press the retaining 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". Refer to Vehicle Diagnostic Tester.