Fitment (Market-Validated Usage)

Based on OEM catalog cross-reference data and verified aftermarket listings, this NOx sensor is used in Renault diesel SCR (AdBlue) systems, mainly on Euro 6 passenger car platforms with Blue dCi engines.

Common system applications include:

• Renault Megane IV 1.7 Blue dCi
• Renault Scenic IV 1.7 Blue dCi
• Renault Talisman 1.7 Blue dCi
• Renault Grand Scenic IV 1.7 Blue dCi
• Renault Espace V 1.7 / 2.0 dCi (selected SCR variants)

Fitment is strictly based on OE number matching:
227907342R / SNS904 / A2C16087300-05

OE and supplier data confirm this is a Continental/Vitesco SNS904 NOx sensor used across Renault Euro 6 diesel SCR platforms.

Aftermarket listings consistently map this OE number to Megane IV / Talisman / Scenic IV diesel SCR applications using the 1.7 Blue dCi engine family.

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 injects AdBlue (urea solution) into the exhaust stream to reduce NOx emissions and meet Euro 6 standards.

The sensor is an integrated electronic unit designed for high-temperature exhaust environments and continuous emissions monitoring.

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

• 227907342R
• SNS904
• A2C16087300-05
• Continental / Vitesco SNS904 family

FAQ

Is this sensor vehicle-specific?

Yes. NOx sensors must match the exact OE number. Even small suffix differences (342R / 461R / 589R variants) can change calibration, cable length, or mounting position.

Why are multiple Renault models listed?

Because Renault uses shared Euro 6 Blue dCi engines across Megane, Scenic, and Talisman platforms, and they all use the same SCR NOx sensor architecture.

Can similar OE numbers be used instead?

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