NOX Sensor For Citroën, DS, Opel, Peugeot, Toyota, Vauxhall 9811207180

Ensure your diesel’s emission‑control system works reliably with our “NOx Sensor (Part No. 9811207180)” — a high‑precision nitrogen‑oxide measuring unit compatible with a wide range of Citroën, Peugeot, Opel/Vauxhall, DS, Toyota‑ (in certain badge‑shared models) and other diesel vehicles. This OEM‑spec sensor continuously monitors NOx and oxygen levels in the exhaust stream and communicates with the vehicle’s ECU/SCR system for accurate dosing of AdBlue or exhaust‑aftertreatment agents. If your original sensor is faulty or out of spec, replacing it with this unit from DDP Autoparts helps restore correct emissions readings, prevent emission‑system faults or limp‑mode triggers, and ensure compliance with emission regulations while maintaining engine performance and fuel economy.

OEM Number: 9811207180, 3554047, 09811207180, 03554047, 98 112 07180, 35 54 047

Quantity: 1

Our SKU: TC9811207180_94

All our NOX sensors are OEM quality and reliable after-market car parts. This NOX sensor is specifically compatible with Citroën: Berlingo, C4, C4 Spacetourer, C5 Aircross, Grand C4 Spacetourer, DS: DS 7, Combo, Grandland / Grandland X, Opel: Combo, Grandland / Grandland X, Peugeot: 208, 3008, 308, 308 SW, 5008, 508, 508 SW, Partner, Rifter, Toyota: Proace City, Proace City Verso, Combo, Grandland X / Grandland.

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part with your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

❓ Frequently Asked Questions (FAQ)

Q: What does the NOx sensor do?
A: The NOx sensor measures the concentration of nitrogen oxides (NO and NO₂) in the exhaust gas, along with oxygen content, to help the engine management and exhaust‑aftertreatment (e.g. SCR + AdBlue) system maintain correct emissions levels.

Q: Why is this sensor important for modern diesel vehicles?
A: For diesel engines with selective catalytic reduction (SCR) or other NOx‑control systems, the sensor provides real‑time NOx data that the ECU uses to adjust urea/AdBlue dosing. This ensures exhaust emissions stay within legal limits (e.g. Euro 5/Euro 6), helps protect the catalytic converter and exhaust after‑treatment components, and avoids emission‑related errors or warnings.

Q: What vehicles/engines is Part 9811207180 compatible with?
A: This sensor is listed for many Citroën, Peugeot, Opel/Vauxhall, DS and related badge‑shared vehicles that use the corresponding NOx‑sensor layout. Always check your vehicle’s VIN or existing part number to confirm compatibility before ordering.

Q: What are common signs that the NOx sensor is failing or faulty?
A: Typical symptoms include: the exhaust‑emission warning light or SCR/AdBlue warning appearing on the dashboard; frequent or spurious emissions‑system error codes; reduced engine performance or limp‑home mode triggered due to failed emissions compliance; and possible increase in exhaust emissions or black/grey smoke if NOx control fails.

Q: What can cause NOx sensor failure?
A: Several factors may damage or degrade a NOx sensor over time: prolonged exposure to high exhaust‑gas temperatures, soot and carbon build‑up, oil or coolant contamination, corrosion (especially from moisture ingress), and rapid thermal shocks (e.g. sudden cooling after a hot run).

Q: Is this a direct‑fit replacement, or are there extra parts / programming needed?
A: The sensor is designed as a direct‑fit, OEM‑spec replacement. However, after installing a new NOx sensor, it’s recommended to clear any related fault codes and — if required by the vehicle’s software — reset or calibrate the emissions/DEF system to ensure proper function.

Q: Will replacing the NOx sensor fix all exhaust/emissions problems?
A: It will correct issues caused by sensor failure (wrong NOx readings, SCR dosing errors, emissions warning lights, limp‑mode due to emission faults). But if the root cause lies with other components (DPF, SCR catalyst, EGR, exhaust leaks, wiring, AdBlue dosing system), those will need to be addressed separately.