Scania DC13 2296799 Nox Sensor
Scania DC13 2296799 NOx Sensor – Emission Monitoring for Cleaner and Smarter Truck Operation
The Scania DC13 2296799 NOx Sensor is a vital emissions control component specifically designed for the Scania DC13 Euro 6 engine. As heavy-duty trucks are subjected to increasingly strict environmental regulations, especially in European markets, NOx sensors have become essential for reducing nitrogen oxide (NOx) emissions. The 2296799 sensor monitors NOx levels in the exhaust gas and ensures proper operation of the Selective Catalytic Reduction (SCR) system, which converts harmful NOx into harmless nitrogen and water.
This article provides an in-depth look at the function, specifications, benefits, maintenance, and applications of the Scania 2296799 NOx Sensor. It is tailored for fleet managers, mechanics, and procurement professionals in the truck parts industry who require detailed information about this essential emissions component.
What is a NOx Sensor?
A NOx (Nitrogen Oxide) sensor is an electronic device that measures the concentration of nitrogen oxides in the exhaust system of a diesel engine. It typically consists of two parts: a sensing cell that sits inside the exhaust flow and a control module that communicates with the Engine Control Unit (ECU).
The NOx sensor’s data is used by the ECU to determine:
- When and how much urea (AdBlue) to inject into the exhaust stream
- Whether the SCR system is functioning properly
- If the engine is operating within emissions compliance
In Scania’s Euro 6-compliant DC13 engines, accurate NOx measurement is crucial for maintaining legal emissions levels and for avoiding fines, increased fuel consumption, or unplanned downtime.
Scania Part No: 2296799 – Overview
The Scania DC13 2296799 Nox Sensor is a genuine OEM part developed specifically for the DC13 engine series. It is usually mounted in the exhaust aftertreatment system, either upstream or downstream of the SCR catalyst, depending on the configuration.
Technical Specifications
- Part Number: 2296799
- Sensor Type: NOx sensor for Euro 6 aftertreatment system
- Measurement Range: Typically 0–500 ppm of NOx
- Operating Voltage: 12V
- Connector Type: 5-pin or 6-pin (depending on version)
- Cable Length: Varies by model; generally 50–100 cm
- Sensor Material: Stainless steel and ceramic composite
- Mounting: Threaded with heat-resistant seal
- Operating Temperature: -40°C to +900°C
How the 2296799 NOx Sensor Works
The sensor measures the level of nitrogen oxides in the exhaust gases and sends this information to the ECU via a digital signal. The ECU then adjusts the urea dosing through the AdBlue injector to ensure proper reduction of NOx into nitrogen and water.
If the sensor detects abnormal levels or fails to send a signal, the engine may:
- Enter limp mode
- Increase fuel consumption
- Display warning lights or error codes
- Trigger DTCs (Diagnostic Trouble Codes)
Hence, a functioning NOx sensor is not only critical for emissions compliance but also for engine efficiency and uptime.
Key Benefits
1. Precise Emissions Monitoring
The 2296799 sensor ensures that the SCR system receives accurate data to perform real-time adjustments, keeping the vehicle compliant with Euro 6 standards.
2. Enhanced Fuel Efficiency
A properly functioning NOx sensor prevents over-injection of urea and reduces regeneration frequency, resulting in better fuel economy and longer service intervals.
3. Prolonged Component Life
By supporting optimal SCR operation, the sensor helps protect the diesel particulate filter (DPF) and catalyst from thermal overload and excess soot accumulation.
4. OEM Fit and Function
As a genuine Scania part, the 2296799 NOx sensor ensures seamless integration with the DC13 engine’s ECU and exhaust system, avoiding issues associated with aftermarket alternatives.
5. Reduced Downtime
Replacing a faulty NOx sensor with a genuine 2296799 unit helps avoid emission system failures, unplanned stops, and legal fines associated with non-compliance.
Signs of a Failing NOx Sensor
- Check engine light or emissions system warning
- Reduced engine power
- Increased AdBlue consumption
- Excessive white or black smoke from the exhaust
- Frequent DPF regenerations
- High fuel consumption
Early diagnosis and replacement can prevent broader issues in the emissions system and engine performance.
Installation and Maintenance
Replacing a NOx sensor requires basic mechanical skills but must be done with care to avoid sensor damage or system misreading:
- Disconnect battery before sensor replacement
- Use correct torque and anti-seize compound during installation
- Perform ECU reset or system re-calibration if necessary
- Check for software updates to ensure compatibility
Always verify that the replacement sensor matches the OEM specification and part number.
Applications
The 2296799 NOx sensor is specifically designed for Scania DC13 engines used in:
- Scania R-Series Euro 6
- Scania G-Series Euro 6
- Scania P-Series Euro 6
- Vocational and long-haul configurations
These engines are widely used in applications such as:
- Long-distance logistics
- Construction material transport
- Municipal services
- Fuel and chemical tankers
Scania DC13 2296799 NOx Sensor
The Scania DC13 2296799 NOx Sensor is an essential component in ensuring emissions compliance, protecting the SCR system, and maintaining fuel efficiency. In today’s highly regulated environment, investing in high-quality OEM sensors like the 2296799 is not just about environmental responsibility—it’s also about preserving engine performance, avoiding legal penalties, and ensuring operational continuity.
For fleet operators, workshops, and parts distributors, choosing genuine Scania sensors is a strategic move toward long-term vehicle health and regulatory peace of mind.
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