GTI L4-2.0L Turbo (CBFA) (2008)
Rain Sensor: Service and Repair
Rain/Light Recognition Sensor
If a Rain/Light Recognition Sensor G397 is removed intact from retaining plate on windshield (e.g. to change the windshield), it can be reinstalled later.
Store the removed Rain/Light Recognition Sensor G397 protected from dust and make sure that the silicon connecting pads are not soiled up until
reinstallation.
Removing
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Switch off ignition, switch off all electrical consumers and remove ignition key.
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Remove the interior rearview mirror.
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Disconnect harness connector - 1 - from Rain/Light Recognition Sensor G397 - 2 -.
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Using e.g. a phillips head screwdriver, pry Rain/Light Recognition Sensor G397 - 1 - out of retaining plate - 2 -.
NOTE: While removing, the complete Rain/Light Recognition Sensor G397 and not only the upper shell of the sensor must be pried off.
Installing
Install in reverse order of removal, noting the following:
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Thoroughly clean windshield inside retaining plate with isopropyl alcohol.
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If necessary, remove protective cap of new Rain/Light Recognition Sensor G397.
NOTE:
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Surface (connecting pads) of Rain/Light Recognition Sensor G397 must not be soiled when installing.
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If the surface (connecting pads) of Rain/Light Recognition Sensor G397 is soiled, it can be potentially cleaned by "applying" and then "pulling
off" one or more adhesive strips.