Rain/Light Recognition Sensor -G397-

WARNING: This page is about a different variant/trim than selected.

The rain/light recognition sensor is designed so that it can be used again. The only requirement to use it again is that the connecting pad must not be damaged.

CAUTION:

Store the removed Rain/Light Recognition Sensor protected from dust and make sure the silicon connecting pads are not soiled up until reinstallation.

NOTE:

If the rain sensor was replaced by another rain sensor having a different part number, it is necessary to code the new rain sensor. Refer to RAIN/LIGHT RECOGNITION SENSOR -G397-, CODING .

Rain sensors cannot be interchanged. Be sure to use the correct rain sensor.

Removing

-- Turn off the ignition and all electric consumers and remove the key.

-- Remove rearview mirror. Refer to Removal and Installation .

-- Disconnect electrical connection -A- from Rain/Light Recognition Sensor -1-.

Fig 1: Identifying Rain/Light Recognition Sensor

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Pry the Rain/Light Recognition Sensor -1- with a suitable screwdriver at the cut-out -3- from the retaining plate -2-.

Fig 2: Identifying Rain/Light Recognition Sensor -1- Installed And Pressed Firmly Into Plate In Windshield -2-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

While removing, the complete Rain/Light Recognition Sensor and not only the upper shell of the sensor must be pried off.

Installing

Install in reverse order of removal. Note the following:

CAUTION:

Always clean the windshield surface inside the Rain/Light Recognition Sensor bracket before installing. Remove any traces of the connecting pad still remaining on the windshield.
Surface (connecting pads) of Rain/Light Recognition Sensor must not be soiled or damaged when installing. Always replace a sensor that has a damaged connecting pad.

NOTE:

If the surface (connecting pads) of Rain/Light Recognition Sensor is soiled, it can be potentially cleaned by applying and then pulling off one or more adhesive strips.

-- Clean windshield inside retaining plate, with cleaning solution. Refer to Interior Rearview Mirror with Rain Sensor Retaining Plate, Attaching in Removal and Installation (Interior Rearview Mirror).

-- Where applicable, remove the cap from the new rain/light recognition sensor.

-- Insert the rain/light recognition sensor -1- into the retaining plate -2- on the windshield and press it in securely.

Fig 3: Identifying Rain/Light Recognition Sensor -1- Installed And Pressed Firmly Into Plate In Windshield -2-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

Even if the sensor is installed correctly, small air bubbles can form between the windshield and the connecting pad. The contact surface must be free-of-bubbles after approximately 10 minutes.

-- Connect the connector -A- an secure sensor by installing harness cover.

Fig 4: Identifying Rain/Light Recognition Sensor

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install rearview mirror. Refer to Interior Rearview Mirror Removal and Installation .

-- Code the rain/light recognition sensor if necessary. Refer to RAIN/LIGHT RECOGNITION SENSOR -G397-, CODING .