A3 Quattro L4-2.0L Turbo (CBFA) (2009)
Replacing Rain Sensor
‹› To remove sensor, proceed as described above.
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If necessary, completely remove foil remnants from windshield.
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Clean sensor contact surface on windshield with cleaning solution D 009 401 04.
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Peel off protective foil from rain sensor.
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Spray entire surface of sensor foil with cleaning solution D 009 401 04 and insert sensor in mirror base.
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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.