Air Quality Sensor with Connector 5QJ907643 High Accuracy Replacement for B6 MK6 MK5 Item Type:AirQualitySensor Material: Metal+ABS OEM: 5Q0907643D, 5Q0907659C, 5QJ907643, 5QJ907659, 1K0907659, 4B0 907 659, 4B0 907 659 A, 4B0907659, 5K0 907 659, 7E0 907 643, 7L0 907 643, 7L0 907 643 A, 7L0707643, 8K0 907 659, 8K0 907 659A, 56D 907 659 The air quality sensor is used to measure the moisture in the air, the ambient temperature and the pollution degree of the outside air. The air conditioning ECU controls the compressor's work and intake through the measurement results. Fitment: Replacement for B6 Replacement for MK6 Replacement for MK5 Replacement for Seat ALHAMBRA 2011 - 2013 Replacement for OCTAVIA 2009-2013 Replacement for SUPERB 2008-2013