Product Description
The sensor is an ambient air quality sensor designed for Audi/Volkswagen Group vehicle HVAC systems. Its function is to detect the presence of pollutants in the outside air—such as carbon monoxide, ozone, nitrogen dioxide, and particulate matter—and communicate this information to the HVAC management system to adjust recirculation, filtration, and cabin ventilation.
Main Features
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Constructed to ensure compatibility and operation as designed by the manufacturer.
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Detects multiple external air pollutants and helps the HVAC system decide when to activate recirculation mode to protect the vehicle's interior.
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Direct fit: installs in the original location without the need for special adaptations.
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Robust materials and design to operate under variable temperature, humidity, and vibration conditions typical of the engine compartment or external areas of the vehicle.
Compatibility
This sensor is listed for various Audi and Volkswagen vehicle versions. Some examples include:
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Audi A4, S4, A5, Q5 with approximate years 2013-2016.
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Audi Allroad (A4 version) within the same year range.
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Also listed for Volkswagen models compatible with the “ambient air quality sensor” segment.
Important note: Exact compatibility varies by year, engine, country, and HVAC system. We recommend verifying the VIN number or the old reference before purchasing.
Recommendation for the customer
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Confirm that the old part number matches 8K0907659A (or its equivalents/successors) before ordering.
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Verify that your vehicle's HVAC system has an automatic filtering/recirculation function, as this sensor works in conjunction with that logic.
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When installing, ensure that the connector and wiring are in good condition and free of corrosion to avoid erratic readings.
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If you notice that outside air is being filtered more than usual, smells bad, or the HVAC system is not recirculating when it should, it could be due to a faulty sensor.
