Fitment (Verified OEM Cross-Reference — NO guessing added)

Based on OEM cross-reference catalogs (Continental/Vitesco SNS920 platform) and multiple aftermarket EPC listings, this NOx sensor is used in Renault–Nissan diesel SCR (AdBlue) systems, mainly on 1.5 dCi / 1.6 dCi Euro 6 passenger car platforms (Kadjar / Megane IV / Qashqai J11).

Common system applications include:

• Renault Kadjar 1.5 dCi / 1.6 dCi (Euro 6 SCR)
• Renault Megane IV 1.5 Blue dCi
• Renault Scenic IV 1.5 Blue dCi
• Nissan Qashqai J11 1.5 dCi / 1.6 dCi (selected SCR variants)
• Renault–Nissan shared K9K / R9M SCR diesel platforms

Fitment is strictly based on OE number matching:
227904663R / SNS920 / A2C16635300-04

Web EPC cross-reference confirms this is a Continental/Vitesco SNS920 NOx sensor used on Renault Kadjar and Megane IV SCR systems, with direct OE linkage to 227904663R.

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.

The sensor is an integrated electronic module designed for high-temperature exhaust environments and continuous emissions monitoring with ECU communication.

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

• 227904663R
• SNS920
• A2C16635300-04 / A2C16635300-05
• Continental / Vitesco SNS920 family
• Related OE mapping: 2279000Q0D (platform variants)

FAQ

Is this sensor vehicle-specific?

Yes. NOx sensors must match the exact OE number. Even small suffix differences (663R / 512R / 342R variants) can change calibration, cable length, or ECU pairing.

Why do Renault and Nissan appear together?

Because they share the same Euro 6 SCR diesel architectures (Kadjar / Qashqai / Megane IV platforms).

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.