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

Based on Hyundai/Kia EPC cross-reference data and verified aftermarket SCR catalog listings, part number 29650-2U210 (SNS0816B) is used in Hyundai/Kia Euro 6 diesel SCR (AdBlue) systems, mainly on 1.6 CRDi diesel platforms (Hyundai Tucson / Kia Sportage QL generation 2018–2022 depending on sensor position and calibration).

Confirmed applications include:

• Kia Sportage IV (QL / QLE) 1.6 CRDi Euro 6 SCR (2018–2022)
• Hyundai Tucson TL / TLE 1.6 CRDi Euro 6 SCR (2018–2020+)
• Hyundai/Kia shared 1.6 CRDi SCR diesel architecture

Fitment is strictly based on OE number matching:
29650-2U210 / SNS0816B

Verified Cross-Reference (Important)

• OEM aftermarket listings confirm 29650-2U210 = SNS0816B NOx sensor used on Kia Sportage / Hyundai Tucson 1.6 CRDi SCR systems
• Multiple catalogs confirm SNS0816B is part of the Continental NOx sensor family (SNS0816A / SNS0816B variants) used in Hyundai/Kia SCR systems
• Same SCR architecture is shared across Hyundai/Kia 1.6 CRDi Euro 6 diesel platforms with ECU-coded sensor positioning (inlet/outlet variation depending on exhaust layout)

📌 Key point:
SNS0816B is a calibration-specific SCR NOx sensor, meaning even small suffix changes (A vs B) can affect ECU compatibility and cannot be assumed interchangeable.

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

The SNS0816B module is commonly used in 1.6 CRDi SCR systems, typically mounted either upstream or downstream of the SCR catalyst depending on vehicle configuration.

Symptoms / Fault Codes

• Check engine light
• SCR / AdBlue system warning
• NOx sensor communication or signal fault
• P2200 / P229F / U029E type codes
• Reduced engine power (limp mode)
• Increased emissions / AdBlue system errors

OE / Part Numbers

• 29650-2U210
• SNS0816B
• A3C05812400-01 / A2C17248600-02 (supplier equivalents depending on revision)
• Hyundai/Kia 1.6 CRDi SCR NOx sensor family

FAQ

Is this sensor interchangeable with other Hyundai/Kia NOx sensors?

No. Even within the same 1.6 CRDi SCR system, Hyundai/Kia uses ECU-coded variants. SNS0816B is not interchangeable with SNS0816A or other 2U-series sensors.

Why do Tucson and Sportage share this sensor?

Because both use the same Hyundai/Kia 1.6 CRDi Euro 6 SCR diesel architecture, so emission components are shared across platforms.

Can aftermarket versions work?

Yes, but only if the exact SNS0816B calibration matches, otherwise SCR faults, incorrect NOx readings, or limp mode may occur.