The NOx sensor for the Audi A4 B8, A5, A6, A7, and Volkswagen Touareg with a 3.0 TDI engine measures nitrogen oxide emissions. It is compatible with CATA and CNRB engines and helps improve engine performance and reduce pollutant emissions.
- Type: NOx sensor
- Compatibility: Audi A4 B8 3.0 TDI (2008-), Audi A5 3.0 TDI (2012-), Audi A6 3.0 TDI (2011-), Audi A7 3.0 TDI (2011-), Volkswagen Touareg 3.0 TDI (2013-)
- Engine codes: CATA, CNRB