Rain/Light Recognition Sensor, Removing And Installing: Installing
Install in reverse order of removal and note the following:
- Thoroughly clean the windshield surface inside the frame for the Rain/Light Recognition Sensor -G397- before installing. Remove any traces of the connecting pad that may still be on the windshield.
- The surface (connecting pad) of the Rain/Light Recognition Sensor -G397- must not be contaminated or damaged when installing. A sensor with a damaged connecting pad must be replaced. Refer to RAIN/LIGHT RECOGNITION SENSOR, SERVICING .
If the connecting pad surface on the Rain/Light Recognition Sensor -G397- is dirty, it may be cleaned by "applying" and then "pulling off" one or more adhesive strips.
-- Clean the windshield thoroughly inside the retaining plate.
-- Push the grip tab in the direction of the -arrow A-.
-- Remove the protective cap -1- in the direction of -arrow B-.
-- Connect the connector.
-- Install the Rain/Light Recognition Sensor -G397- -1- in the frame on the windshield.
-- Engage the retainer audibly on both sides -arrows-.
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.
If the contact surface is not free of bubbles after 10 minutes, the Rain/Light Recognition Sensor -G397- must be removed and installed again.
Air bubbles between the windshield and the connecting pad cause Rain/Light Recognition Sensor -G397- malfunctions.
-- Read out the DTC memory and delete the sporadic faults. Refer to Vehicle Diagnostic Tester.
When disconnecting the Rain/Light Recognition Sensor -G397- the CAN-Bus can be activated by opening the door for example. Sporadic DTC memory entries in the vehicle electrical system control module must be erased after the repair.
-- If the Rain/Light Recognition Sensor -G397- was replaced, it must be coded. Refer to Vehicle Diagnostic Tester.