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This high-quality NOx sensor (A10603512R) for PSA (Peugeot/Citroën) monitors nitrogen-oxide levels in the exhaust system and, together with the SCR catalyst (AdBlue), controls emissions in line with the Euro 6 standard.
It operates reliably on a 12 V onboard supply and delivers precise measurement signals to the engine control unit (ECU), helping keep limits within spec and preventing fault messages (e.g., NOx efficiency). Built to OE quality: robust sensing element with integrated control unit, heat-resistant electronics, and corrosion-proof connectors ensure long service life even at high exhaust temperatures. Installation is straightforward: loosen the old sensor, disconnect the plug, fit the new sensor and lock the connector; then clear fault codes and take a short test drive. Technical notes: vehicle-specific connector, pre-assembled harness; cable length/pin assignment match the OE specification of the listed references. Compatible with common Euro 6 diesel engines on the PSA (Peugeot/Citroën) platform. Fast shipping and warranty included.
Matching OE number(s): 227903512R, 2279000Q0L.
Euro-6 compliant, SCR/AdBlue-ready
• OE quality: precise fit & long-lasting
• For PSA (Peugeot/Citroën) – see references below
• Fast feedback to the ECU for stable emissions
• Heat-resistant housing & corrosion-proof connector
• Easy installation, no modifications required
• Fast delivery, warranty included
The NOx sensor is a core component of the exhaust aftertreatment system. It consists of a probe and a control unit, is integrated as a single assembly into the exhaust line, and detects nitrogen oxides (NOx) in the exhaust flow. Its use ensures compliance with strict regulations such as Euro 5 and Euro 6.
Note: Due to the sensor’s complexity and accuracy requirements, we recommend OE-quality replacement parts.