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

Based on OEM Hyundai/Kia parts listings, Continental SNS0804A documentation, and verified aftermarket EPC catalogs, this NOx sensor is used in Hyundai / Kia Euro 6 diesel SCR (AdBlue) systems, mainly on 1.6 CRDi U-series diesel platforms (modern C-segment vehicles).

Common system applications include:

• Hyundai i30 1.6 CRDi (PD / PDEN / PDE platforms)
• Hyundai i30 Fastback 1.6 CRDi
• Hyundai i30 Estate / Wagon 1.6 CRDi
• Kia Ceed 1.6 CRDi (CD platform)
• Kia Proceed 1.6 CRDi
• Kia XCeed 1.6 CRDi

Fitment is strictly based on OE number matching:
29650-2U100 / SNS0804A / A2C17246000-02

OE cross-reference data confirms this is a Continental SNS0804A NOx sensor used across Hyundai/Kia 1.6 CRDi SCR systems with identical calibration families.

Aftermarket catalog listings also show this sensor as a direct replacement for Hyundai/Kia OE 29650-2U100 across multiple 1.6 CRDi SCR 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 injects AdBlue (urea solution) into the exhaust stream to reduce NOx emissions and meet Euro 6 standards.

The sensor operates in high-temperature exhaust environments and continuously communicates with the engine control module to manage emissions efficiency.

Symptoms / Fault Codes

• Check engine light
• SCR / AdBlue system warning
• NOx sensor communication or signal faults
• P2200 / P220E / P229F type codes (platform dependent)
• Reduced engine power (limp mode)
• Increased emissions

OE / Part Numbers

• 29650-2U100
• SNS0804A
• A2C17246000-02
• Hyundai/Kia SCR NOx sensor family (1.6 CRDi platforms)

FAQ

Is this sensor vehicle-specific?

Yes. Hyundai/Kia NOx sensors are ECU-calibrated. Even small differences (2U100 / 4C100 / 4A100 variants) can change calibration, connector type, or exhaust position.

Why do Hyundai and Kia models share this sensor?

Because both brands use the same 1.6 CRDi SCR diesel architecture, so emission components are shared across platforms like i30 and Ceed.

Can similar OE numbers be used instead?

Not recommended. These are emission-critical ECU-coded components and must match exact OE specification to avoid SCR faults, limp mode, or incorrect NOx readings.