FITMENT
Compatible with Opel and Vauxhall diesel vehicles equipped with SCR (Selective Catalytic Reduction) systems requiring NOx sensor monitoring.
Common applications include diesel passenger cars and light commercial vehicles using reference SNS168B / 55500320.

FAQ
Q1: What does this NOx sensor do?
A1: It measures nitrogen oxide levels in the exhaust and transmits 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 catalytic converter.

Q3: What are common failure symptoms?
A3: Engine warning light, emissions-related fault codes, and reduced emissions system efficiency.

Q4: Is this sensor universal for Opel and Vauxhall vehicles?
A4: No, compatibility depends on the exact engine and SCR system configuration.