FITMENT
Compatible with Volkswagen diesel vehicles equipped with SCR (Selective Catalytic Reduction) exhaust systems requiring NOx sensor monitoring.
Common applications include Volkswagen diesel passenger cars and light commercial vehicles using reference SNS471 / 04L907805AT.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide levels 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 failing NOx sensor?
A3: Engine warning light, emissions-related fault codes, and reduced SCR system efficiency.

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