Mercedes-Benz NOx Sensor A0009054704 / 5WK97381 / A2C95270000-01 — Reliable Emission Control for W213 E-Class & W222 S-Class
Introduction: AutoMan Spare Parts – Your Global NOx Sensor Partner
At AutoMan Spare Parts, we take pride in being one of the world’s No.1 suppliers of OEM Nitrogen Oxide (NOx) sensors. With an extensive catalog covering Mercedes-Benz, BMW, VW, Audi, Hyundai, Kia, and more, our focus is to provide premium-quality components at competitive prices.
If you’re driving a Mercedes-Benz W213 E-Class or W222 S-Class, the NOx Sensor A0009054704 / 5WK97381 / A2C95270000-01 is one of the most essential parts to ensure your engine’s emission control system works flawlessly.
What Is the Mercedes-Benz NOx Sensor A0009054704?
The NOx (Nitrogen Oxide) Sensor monitors and controls the emission of nitrogen oxides from your diesel engine, helping your car comply with strict environmental standards. This sensor is part of the Selective Catalytic Reduction (SCR) system, which injects AdBlue (urea) to convert harmful NOx into harmless nitrogen and water vapor.
OEM Part Numbers
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A0009054704 (Mercedes-Benz Genuine Part)
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5WK97381 (Continental/Siemens VDO Reference)
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A2C95270000-01 (Alternate Reference)
Key Features and Benefits
| Feature | Description |
|---|---|
| OEM Quality | Built to meet Mercedes-Benz specifications ensuring perfect fit and performance. |
| Emission Compliance | Supports Euro 6 and EPA emission standards. |
| Fuel Efficiency | Ensures optimal fuel-air mixture and combustion. |
| Longevity | Designed with durable ceramic and metal housing for long-term reliability. |
| Plug-and-Play Installation | Easy to install without complex programming or calibration. |
Compatibility Table
| Model | Series | Engine Type | Year Range |
|---|---|---|---|
| Mercedes-Benz E-Class | W213 | 2.0L / 3.0L Diesel | 2016–2021 |
| Mercedes-Benz S-Class | W222 | 3.0L / 4.0L Diesel | 2014–2020 |
| Mercedes-Benz CLS | W257 | 2.9L Diesel | 2018–2022 |
| Mercedes-Benz GLE | W167 | 3.0L Diesel | 2018–2023 |
| Mercedes-Benz GLC | X253 | 2.1L / 3.0L Diesel | 2015–2022 |
Always verify part number compatibility using your vehicle VIN before purchase.
Symptoms of a Failing NOx Sensor
If your NOx sensor starts to fail, you may notice:
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Check Engine Light (CEL) or AdBlue warning
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Increased fuel consumption
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Poor acceleration or reduced power
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Failure in emission test
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Engine entering limp mode
A quick diagnostic scan can confirm NOx sensor malfunction codes (P229F, P2202, etc.). Replacing it promptly prevents catalytic converter damage.
Why Buy from AutoMan Spare Parts?
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Global Leader in OEM NOx Sensors
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Huge Range for Mercedes-Benz, BMW, Audi, VW, and more
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Competitive Worldwide Shipping including USA, Mexico, and Europe
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100% Genuine Quality Guarantee
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Expert Customer Support and Fast Dispatch
Visit: www.automanspareparts.com to explore our full NOx sensor collection today.
Installation Tips
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Disconnect the battery before replacing the sensor.
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Allow the exhaust system to cool down.
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Use anti-seize on threads to ease future removal.
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Perform ECU adaptation or reset fault codes after installation.
FAQs
Q1: Is A0009054704 the same as 5WK97381?
Yes, both represent the same NOx sensor model — 5WK97381 is the manufacturer reference by Continental/VDO, while A0009054704 is Mercedes’ part number.
Q2: Can I replace this sensor myself?
Yes, it’s a plug-and-play unit. However, resetting the fault code may require an OBD-II diagnostic tool.
Q3: How long does a NOx sensor last?
Typically 80,000–120,000 km depending on fuel quality, driving conditions, and maintenance.
Q4: Does AutoMan Spare Parts offer warranty?
Yes, all sensors come with a 12-month warranty against manufacturing defects.
TL;DR (Summary)
The Mercedes-Benz NOx Sensor A0009054704 / 5WK97381 / A2C95270000-01 is an essential emission control component for W213 E-Class and W222 S-Class models. It ensures compliance with emission standards, boosts engine efficiency, and reduces harmful exhaust gases. Available now at AutoMan Spare Parts — the world’s No.1 source for OEM NOx sensors.
