NGK Lambda Sensor - 92512
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LAMBDA SENSOR 92512 FOR MERCEDES-BENZ C-CLASS/T-Model CLK/Convertible SLK 1.8LFree delivery in 1–3 days£87.63Visit shop →
LAMBDA SENSOR 92512 FOR MERCEDES-BENZ C-CLASS/T-Model CLK/Convertible SLK 1.8LFree delivery in 1–3 days£87.63Visit shop →
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LAMBDA SENSOR 92512 FOR MERCEDES-BENZ C-CLASS/Sportscoupe/Sportcoupe SLK CLKFree delivery in 1–3 days£91.93Visit shop →
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Fits NGK 92512 lambda sensor 92512Free delivery in 1–3 days£95.23Visit shop →
92512 NGK Lambda Sensor for MERCEDES-BENZFree delivery in 1–3 days£95.59Visit shop →
LAMBDA SENSOR 92512 FOR MERCEDES-BENZ C-CLASS/T-Model CLK/Convertible SLK 1.8LFree delivery in 1–3 days£95.77Visit shop →
LAMBDA SENSOR 92512 FOR MERCEDES-BENZ C-CLASS/Sportscoupe/Sportcoupe SLK CLKFree delivery in 1–3 days£96.48Visit shop →
Product Information
Full details
The NGK Lambda Sensor 92512 is an essential diagnostic and performance component designed for vehicle owners and mechanics looking to maintain or restore precise air-fuel ratio management. By ensuring your engine operates at its optimal mix, this sensor helps improve fuel efficiency, reduce exhaust emissions, and protect your catalytic converter from premature failure; however, it is critical to verify specific compatibility with your vehicle's make, model, and engine configuration before installation to avoid signal errors.
All features
| Model Part Number | 92512 |
|---|---|
| Brand | NGK |
Extended Product Information
FAQs
What is the function of the 5-wire configuration?
The 5-wire setup is characteristic of broadband sensors, allowing for a wider range of air-fuel ratio measurements compared to standard 2 or 3-wire narrow-band sensors.
Can I use this sensor on any vehicle?
No. This sensor is engineered for specific vehicle applications. You must use a compatibility tool to confirm it matches your vehicle's engine management system.
How long is the cable on the 92512?
The cable measures 900 mm in length, which is designed to provide sufficient reach for most standard engine configurations.
Do I need to calibrate the sensor after installation?
While the sensor is pre-calibrated, your vehicle's ECU will need to undergo a 'drive cycle' to reset the fuel trim adjustments based on the new sensor input.
Why is it important to prevent contamination of the sensor tip?
The sensor tip is porous and sensitive to chemicals; oil, coolant, or silicone sealants can block the pores and prevent the sensor from accurately measuring oxygen.
Troubleshooting
Check engine light remains on after installation
Use an OBD-II scanner to clear existing error codes and allow the ECU to relearn fuel trim parameters.
Sensor signal is erratic during cold engine operation
Verify that the wiring harness is securely connected and that the heating circuit has power.
Sensor failed shortly after installation
Check for exhaust leaks near the sensor or internal engine oil consumption, which can contaminate the sensor tip.
Pros and Cons
Pros
- High-accuracy air-fuel ratio monitoring
- Helps improve overall fuel economy
- Durable construction ensures reliable long-term performance
- Generous 900 mm cable length for flexible mounting
- Promotes longevity of the catalytic converter
Cons
- Requires professional-grade diagnostic tools for calibration
- Not universal; requires strict vehicle make/model compatibility check
- Handling sensitivity requires care to prevent sensor contamination
Setup, Compatibility & Care
To ensure proper performance, verify compatibility using your vehicle's VIN or specific engine code before attempting installation. When installing, ensure the threads are clean and free of debris. Use an oxygen sensor socket to tighten the sensor to the manufacturer's specified torque to avoid damaging the housing or thread seal. Avoid applying grease or anti-seize to the sensor tip, as contamination can permanently disable the oxygen-sensitive ceramic element. Always disconnect the battery during the replacement process to prevent electrical shorts and to allow the ECU to reset its long-term fuel trim data upon the first restart.