Hello,
The
Official Factory Repair manuals detail the removal and installation of the G397- Rain/Light Recognition Sensor with images and all the information one needs.
There are three parts to the G397:
- Retaining plate
- Rain/light recognition sensor -G397
- Retaining clip
The repair information says to disconnect the electrical connector, press the clip outward (with small screwdriver) and remove the clip and remove the G397.
Also if you are reusing the same G397, then you will need to replace the Gel film (self adhesive [4E0-955-609]) on the sensor.
Hope this helps,
drpeter