Mercedes Sprinter Front Upper NOX Sensor – Genuine OEM | VS30 2.0L OM654 Diesel | #0009050719 (2023–2025)

A failed front upper NOx sensor on a VS30 Sprinter cuts off one of the ECU's primary inputs for monitoring engine-out nitrogen oxide levels — triggering emissions faults, disrupting AdBlue dosing strategy, and putting the van into a restricted operating mode that won't clear until the sensor is replaced. This is the Genuine Mercedes-Benz OEM front upper NOx sensor for VS30 Sprinters equipped with the 2.0L OM654 diesel engine, a direct replacement that restores accurate upstream NOx measurement and proper aftertreatment system control.

What This Part Does

The front upper NOx sensor is positioned in the upper front exhaust stream, upstream of the DPF and SCR catalyst. It measures nitrogen oxide concentration in the exhaust before any aftertreatment processing occurs, giving the ECU its baseline engine-out NOx reading. This data is used alongside the front lower sensor (0009050819) and rear sensor (0009050919) to build a complete picture of emissions at every stage of the aftertreatment system — allowing the ECU to calculate AdBlue dosing requirements, verify DPF and SCR catalyst efficiency, and detect faults anywhere in the emissions reduction chain. When this upstream sensor fails or drifts, the ECU loses its reference point for the entire NOx reduction calculation, causing the system to log faults and enter a protected operating mode to prevent emissions non-compliance.

Common Symptoms of a Failing Front Upper NOx Sensor

• Check engine light with fault codes related to upstream NOx sensor signal or circuit
• Engine entering limp mode or emissions system power restriction
• AdBlue dosing that is erratic, excessive, or insufficient
• NOx or SCR efficiency fault codes that return after clearing
• Emissions system warning messages in the instrument cluster

When to Replace

Replace when the sensor is confirmed faulty by XENTRY or a compatible scan tool with active upstream NOx fault codes. Always use OEM — aftermarket NOx sensors are known to produce signal drift that causes persistent faults. When replacing this sensor, inspect the front lower (0009050819) and rear (0009050919) sensors at the same time, as all three operate as a system and a degraded sensor elsewhere will continue to generate efficiency faults even with a new upstream sensor installed.

VS30 OM654 Specific — VIN Verification Required

This is the front upper (upstream) NOx sensor for VS30 Sprinters equipped with the 2.0L OM654 diesel engine. It is not the front lower or rear sensor, and is not compatible with VS30 models equipped with the 3.0L OM642 or NCV3 Sprinters. Always verify sensor position, engine code, and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2023–2025 Mercedes-Benz Sprinter 1500 – 2.0L OM654 Diesel (VS30)
• 2023–2025 Mercedes-Benz Sprinter 2500 – 2.0L OM654 Diesel (VS30)
• 2023–2025 Mercedes-Benz Sprinter 3500 – 2.0L OM654 Diesel (VS30)
• 2023–2025 Mercedes-Benz Sprinter 3500XD – 2.0L OM654 Diesel (VS30)

✔ Front upper (upstream) position only ✔ Front lower sensor: #0009050819 — Rear sensor: #0009050919

Part Numbers

• Mercedes OEM: 0009050719 / A0009050719 / 000-905-07-19
• Manufacturer: Genuine Mercedes-Benz
• SKU: 0009050719OE