Rain Sensor: Service and Repair
Rain sensor, removing and installing
Removing rain sensor
NOTE: If the sensor foil is damaged when removing rain sensor, this must be replaced before re-installing.
- Rearview mirror removed.
- Remove clamps - 3 - from mirror base retaining plate - 1 -.
- Disconnect electrical connector to rain sensor.
- Remove rain sensor from mirror base.
- A sensor foil remains adhered to the windshield.
- If the same windshield is reinstalled, remove this completely from the windshield.
- Clean the surface with cleaning solution D 009 401 04.
Installing rain sensor
NOTE: If the same rain sensor is reinstalled, proceed as described.
- Remove the rest of the sensor foil from the rain sensor, if necessary.
- Also clean the surface with cleaning solution D 009 401 04.
CAUTION: Sensor surface must be completely free of foil remnants.
- Remove silicone paper from sensor foil.
- The transparent protective film remains on the sensor foil as an installation aid.
- Place sensor foil on rain sensor with help of transparent protective foil.
- Press sensor foil as shown in - direction of arrow - onto rain sensor without bubbles.
- Then remove transparent protective foil from sensor foil.
- Spray entire surface of sensor foil with cleaning solution D 009 401 04 and insert sensor in mirror base.
CAUTION: Rain sensor must be free of inclusions and bubbles on the windshield to function properly.
- Press sensor retaining clamps on mirror base.
Replacing rain sensor
NOTE: To remove sensor, proceed as described above.
- If necessary, completely remove foil remnants from windshield.
- Clean sensor contact surface on windshield with cleaning solution D 009 401 04.
- Peel off protective foil from rain sensor.
- Spray entire surface of sensor foil with cleaning solution D 009 401 04 and insert sensor in mirror base.
- Press sensor onto windshield without bubbles and place retaining clamps on mirror base.
CAUTION: Rain sensor must be free of inclusions and bubbles on the windshield to function properly.