Fitment (Verified OEM Usage)

Based on OEM cross-reference catalogs and multiple aftermarket listings, this NOx sensor is used in Renault / Dacia diesel SCR (AdBlue) systems, mainly on 1.5 dCi / Blue dCi Euro 6 passenger cars and vans.

Common system applications include:

• Dacia Sandero II 1.5 dCi / Blue dCi (Euro 6 SCR)
• Dacia Duster II 1.5 Blue dCi
• Renault Master III 2.3 dCi (selected SCR variants)
• Renault–Dacia shared Euro 6 SCR platforms

Fitment is strictly based on OE number matching:
227906951R

OE cross-reference data confirms this sensor is part of a Continental/VDO NOx sensor family used across Renault Group 1.5 dCi SCR systems, often paired with variants like 227906887R in similar configurations.

Aftermarket listings also consistently map this OE number to Dacia Sandero II and related Renault Group SCR applications.

Technical Description

This NOx sensor measures nitrogen oxide (NOx) levels 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.

Designed for high-temperature exhaust environments, it provides continuous emissions feedback for engine and aftertreatment control.

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

• 227906951R
• 2279 069 51R (format variant)
• Often cross-referenced with 227906887R in related SCR configurations

FAQ

Is this sensor vehicle-specific?

Yes. NOx sensors must match the exact OE number. Even small suffix differences (951R / 887R variants) can change calibration, connector, or mounting position.

Why do Dacia and Renault appear together?

Because both brands share the same Renault Group 1.5 dCi / Blue dCi SCR platform architecture.

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.