NOX Sensor - CI - Black
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Product Information
Full details
The NOX Sensor XNOX121 CI is designed for specific VAG vehicles, offering a direct replacement for your vehicle's original NOx catalytic converter sensor. It helps ensure your vehicle's emissions control system functions correctly, maintaining optimal performance and compliance. A potential caveat is its specific fitment, requiring verification against your vehicle's OEM part number.
All features
| Colour | Black |
|---|---|
| Model Part Number | XNOX121 |
| Brand | CI |
Extended Product Information
FAQs
What is a NOX sensor?
A NOX sensor (Nitrogen Oxide sensor) is a component in the exhaust system that measures the amount of nitrogen oxides being emitted. This data is used by the engine control unit (ECU) to optimize the performance of the catalytic converter and reduce harmful emissions.
How do I know if my NOX sensor needs replacement?
Common signs include a illuminated Check Engine Light, specific error codes related to NOX sensors (e.g., P2200-P2205 range or VAG-specific codes), reduced engine power, poor fuel economy, or failing an emissions test.
Can I install the NOX sensor myself?
While possible for those with mechanical experience, NOX sensor replacement often requires specific tools and diagnostic equipment to clear error codes and reset the system. It is generally recommended to have it installed by a qualified mechanic.
What is the difference between a NOX sensor and an Oxygen sensor?
Both are exhaust gas sensors, but an Oxygen sensor primarily measures the oxygen content in the exhaust to determine if the air-fuel mixture is rich or lean. A NOX sensor specifically measures nitrogen oxides to manage the emissions aftertreatment system (like the catalytic converter).
How long does a NOX sensor typically last?
The lifespan of a NOX sensor can vary greatly depending on driving conditions, fuel quality, and exposure to exhaust contaminants. They can last anywhere from 50,000 to over 150,000 miles, but are prone to failure due to the harsh environment they operate in.
Does this sensor come with a cable?
Yes, this specific model, XNOX121, includes a cable as part of its design.
What vehicles is the NOX Sensor XNOX121 CI compatible with?
It is compatible with specific VW CARAVELLE Mk VI 2.0 TDI Bus Diesel models from 2015 onwards, provided the vehicle's OEM part number matches one of the cross-references: VAG 04L907805AR, 04L907805M, 04L907807AR, 04L907807DT, or 04L907807M.
Troubleshooting
Check Engine Light (Emissions Related)
This could indicate a faulty NOX sensor. Scan for DTCs. If codes point to NOX sensor performance (e.g., P2200-P2205 range, or specific VAG codes), replacement may be necessary. Ensure the sensor is correctly installed and connected.
Reduced Engine Power or Poor Performance
A failing NOX sensor can cause the ECU to reduce engine performance to protect the emissions system. Verify sensor readings with diagnostic tools. Check for exhaust leaks near the sensor, as these can affect readings.
Failed Emissions Test
An inaccurate NOX reading will cause the vehicle to fail emissions standards. Replace the sensor if diagnostic data indicates it is not functioning within expected parameters.
Sensor Connector Issues
Ensure the 5-pin oval connector is clean, dry, and securely latched. Inspect wiring for any damage, corrosion, or loose pins.
Pros and Cons
Pros
- Ensures accurate emissions monitoring.
- Designed as a direct OE replacement, simplifying installation.
- Contributes to maintaining optimal engine performance.
- Helps comply with emissions regulations.
Cons
- Limited compatibility to specific VAG vehicle models and years.
- Requires professional installation or advanced mechanical knowledge.
- Failure to install correctly can lead to further vehicle issues.
Setup, Compatibility & Care
Compatibility:
Before purchasing, verify that your vehicle's original equipment manufacturer (OEM) part number matches one of the cross-references provided: VAG 04L907805AR, 04L907805M, 04L907807AR, 04L907807DT, or 04L907807M. This sensor is specifically designed for Passenger/LCV Vehicles including:
- VW CARAVELLE Mk VI (SGF, SGM, SGN, SHM, SHN) 2.0 TDI Bus Diesel from 04/2015 to 12/2019 (102 BHP, 75 KW)
- VW CARAVELLE Mk VI (SGF, SGM, SGN, SHM, SHN) 2.0 TDI Bus Diesel from 06/2015 to 08/2024 (204 BHP, 150 KW)
- VW CARAVELLE Mk VI (SGF, SGM, SGN, SHM, SHN) 2.0 TDI Bus Diesel from 04/2015 to 08/2024 (150 BHP, 110 KW)
Setup:
Installation of a NOX sensor typically requires:
- Safely jacking up the vehicle and ensuring it is stable.
- Locating the old NOX sensor in the exhaust system.
- Disconnecting the electrical connector of the old sensor.
- Unscrewing and removing the old sensor.
- Applying anti-seize compound to the threads of the new sensor (if recommended by manufacturer).
- Screwing in the new NOX sensor and tightening it to the manufacturer's specifications.
- Connecting the electrical connector.
- Lowering the vehicle.
- Clearing any diagnostic trouble codes (DTCs) with an OBD-II scanner and performing a system reset if necessary.
Care:
NOX sensors are sensitive components. Avoid direct impact or contamination with oils or harsh chemicals. Regular maintenance of the exhaust system and ensuring the engine is running optimally will help prolong the sensor's lifespan.