NOx (nitrogen oxide) sensor for the exhaust emissions monitoring system. Select this part by its exact reference A0009052012 / A 000 905 20 12, rather than by vehicle model alone.
Compare the complete number on your original sensor, electrical connector, cable length and installation position with the product photographs. Compatibility depends on the engine, production date and emissions equipment. Send us your VIN and original sensor number if you need help checking the correct version. Do not assume that upstream and downstream sensors are interchangeable.
Professional diagnosis and installation are recommended. A NOx-related fault code can also be caused by wiring, power supply or other emissions-system components. Replacing this sensor does not guarantee that a warning light, AdBlue countdown or fault code will disappear. Follow the vehicle manufacturer's procedure for any required coding, adaptation, software checks and fault-memory reset.
Package: 1 NOx sensor assembly as shown in the photographs.