FITMENT
Compatible with Volkswagen AG and Audi AG diesel vehicles equipped with SCR (Selective Catalytic Reduction) systems requiring NOx sensor monitoring.
Common applications include Volkswagen and Audi diesel passenger vehicles using reference 5WK96688A / 03L907807AF.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide concentration in the exhaust system and sends data to the engine control unit for emissions control.

Q2: Where is this sensor installed?
A2: It is installed in the exhaust system, typically before or after the SCR catalyst depending on vehicle configuration.

Q3: What are signs of a faulty NOx sensor?
A3: Engine warning light, emissions-related fault codes, and reduced SCR system efficiency.

Q4: Is this compatible with all Volkswagen and Audi diesel models?
A4: No, compatibility depends on the exact engine and emissions system setup.