Lambda Sensor - NGK NTK - OZA864-EE4
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Product Information
Full details
The NGK NTK Lambda Sensor OZA864-EE4 is an essential component for automotive technicians and DIY mechanics looking to restore or maintain optimal engine performance and exhaust emissions monitoring. This high-quality heated, switching-type sensor ensures your vehicle's engine management system receives accurate data for fuel-air mixture adjustment, though users must be diligent in verifying vehicle compatibility as this specific sensor replaces several distinct OEM part numbers.
All features
| Model Part Number | OZA864-EE4 |
|---|---|
| Brand | NGK NTK |
Extended Product Information
FAQs
What does the 901 mm cable length mean?
This is the total length from the sensor body to the harness connector, ensuring it reaches the required connection point in your specific vehicle chassis.
Is this a universal sensor?
No, this is a vehicle-specific sensor. Always confirm compatibility with your specific vehicle's year, make, and model.
How long do these sensors typically last?
Lambda sensors are wear items and generally perform optimally for 60,000 to 100,000 miles, depending on driving conditions.
Do I need to calibrate the sensor after installation?
No, this sensor is pre-calibrated and will work immediately once the engine management system recognizes the new signal.
What is the purpose of the 4 circuits?
Two circuits are for the sensor signal, and two are for the internal heating element which helps the sensor reach operating temperature rapidly.
Troubleshooting
Check Engine Light remains on after installation
Use an OBD-II scanner to clear the stored fault codes from the ECU after the new sensor is installed.
Sensor is stuck and difficult to remove
Apply a penetrating oil to the threads and allow it to sit for 15-20 minutes, then attempt to remove while the exhaust is slightly warm.
Pros and Cons
Pros
- High-quality construction from a trusted industry manufacturer
- Reduces harmful exhaust emissions through better combustion data
- Heated design minimizes time spent in open-loop operation
- Direct fit for multiple Mercedes-Benz/OEM part numbers
Cons
- Requires professional-grade tools for proper installation
- Sensitive electrical component requires careful handling
- Compatibility is restricted to specific vehicle makes and models
Setup, Compatibility & Care
Before purchasing, verify your vehicle's specific requirements against the part numbers 0065422018, 0065422218, 0065423318, or 0065425318.
Installation Steps:
- Locate the existing lambda sensor in the exhaust pipe.
- Carefully disconnect the electrical harness connector.
- Use a dedicated oxygen sensor socket to unscrew the old sensor.
- Apply a small amount of anti-seize compound to the new threads (if not pre-applied).
- Install the NGK sensor and tighten to the manufacturer's specified torque.
- Reconnect the electrical harness.
Care Instructions: Do not use cleaning solvents or compressed air on the sensor tip, as this can damage the internal ceramic element. Avoid dropping the sensor, as the internal components are fragile.