Fitment (Market-Validated Usage)

Based on OEM cross-reference catalogs and verified aftermarket listings, this NOx sensor is used in Renault–Nissan diesel SCR (AdBlue) systems, mainly on Euro 6 compact SUV and C-segment diesel platforms.

Common system applications include:

• Nissan Qashqai II (J11) 1.5 dCi / 1.6 dCi diesel SCR systems
• Nissan X-Trail T32 1.6 dCi (selected Euro 6 variants)
• Renault Kadjar 1.5 / 1.6 dCi
• Renault Mégane IV 1.5 / 1.6 Blue dCi
• Renault Scénic IV 1.5 / 1.6 Blue dCi
• Renault–Nissan shared Euro 6 SCR diesel platforms

Fitment is strictly based on OE number matching:
227901939R / SNS919 / A2C16635100-02

OE cross-reference data confirms this is a Continental/VDO SNS919 NOx sensor used across Renault–Nissan SCR architectures.

Marketplace listings also explicitly map this OE number to Nissan Qashqai J11 (1.5 dCi K9K engines) and Renault Kadjar applications.

Technical Description

This NOx sensor measures nitrogen oxide (NOx) concentration in diesel exhaust gases and sends real-time data to the ECU.

It is part of the SCR (Selective Catalytic Reduction) system, which uses AdBlue (urea solution) to reduce NOx emissions and meet Euro 6 standards.

The sensor is an integrated electronic module designed for high-temperature exhaust environments with continuous monitoring and CAN communication with the engine control system.

Symptoms / Fault Codes

• Check engine light
• SCR / AdBlue system warning
• NOx sensor communication or signal faults
• P2200 / P229F type codes (system dependent)
• Reduced engine power (limp mode)
• Increased emissions

OE / Part Numbers

• 227901939R
• SNS919
• A2C16635100-02
• Continental / VDO SNS919 family

FAQ

Is this sensor vehicle-specific?

Yes. NOx sensors must match the exact OE number. Even small suffix differences (939R / 850R / 461R variants) can change calibration, connector layout, or ECU compatibility.

Why do Nissan and Renault appear together?

Because Renault–Nissan shares the same Euro 6 diesel SCR platform architecture across Qashqai, Kadjar, X-Trail, and related models.

Can similar OE numbers be used instead?

Not recommended. These are ECU-calibrated emission components and must match exact OE specification to avoid SCR faults or limp mode.