Fitment (Market-Validated Usage)

Based on OEM cross-reference catalogs and aftermarket listing databases, this NOx sensor is used in Renault–Nissan diesel SCR (AdBlue) systems, mainly on light commercial and SUV diesel platforms.

Common system applications include:

• Nissan Qashqai II 1.5 dCi / 1.6 dCi diesel SCR systems
• Nissan X-Trail (T32) diesel variants (selected Euro 6 configurations)
• Nissan NV300 / NV400 diesel SCR systems
• Renault Kadjar 1.5 / 1.6 dCi
• Renault Trafic III 1.6 / 2.0 dCi
• Opel / Vauxhall Movano B / Vivaro B diesel SCR systems (platform-shared variants)

Fitment is strictly based on OE number matching: 227908939R

Cross-reference data shows this part belongs to the Renault–Nissan–M9R/M9T SCR NOx sensor family used across shared diesel platforms in Euro 6 applications.

Technical Description

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

It is part of the SCR (Selective Catalytic Reduction) system, which injects AdBlue (urea solution) into the exhaust stream 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 capability and ECU communication.

Symptoms / Fault Codes

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

OE / Part Numbers

• 227908939R
• 22790-8939R (format variant)
• Related Renault–Nissan NOx sensor family: 22790-00Q0A / 22790-00Q0B series (platform dependent)

FAQ

Is this sensor vehicle-specific?

Yes. NOx sensors must match the exact OE number. Even small suffix differences (8939R / 00Q0A variants) can change calibration or connector configuration.

Why do multiple brands appear in fitment?

Because Renault and Nissan share diesel SCR platforms across multiple vehicle lines, and the same NOx sensor is used across those shared architectures.

Can similar OE numbers be used instead?

Not recommended. These are ECU-calibrated components and must match exact OE specification.