Delphi ES20168 Oxygen Sensor - Front, Rear, Rear Left or Rear Right

Delphi Heated Oxygen Sensor for Audi and Volkswagen Vehicles

The Delphi ES20168 oxygen sensor is designed to provide accurate emissions monitoring for select Audi and Volkswagen models. This heated oxygen sensor ensures optimal engine performance and emissions control by delivering precise air-fuel mixture data to the vehicle’s engine management system.

• Heated sensor type for faster warm-up and improved accuracy
• 4-wire design with a flat connector shape for reliable electrical connection
• Thread size of 18 x 1.5 mm for secure installation
• Overall length of 700 mm to fit specific rear positions
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with rear, rear left, and rear right positions depending on vehicle configuration

Technical Details and Compatibility

The Delphi ES20168 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, reducing emissions during cold starts. Its 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The flat connector shape simplifies installation and connection integrity. With a thread size of 18 x 1.5 mm and an overall length of 700 mm, this sensor is designed for precise fitment in the rear exhaust positions of various Audi and Volkswagen models.

This oxygen sensor is compatible with Audi A4, A4 Quattro, A6 Quattro, and Allroad Quattro, as well as Volkswagen Beetle, Golf, Jetta, R32, TT, and TT Quattro models. The part number ES20168 should be referenced to confirm exact fitment and position-specific requirements.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces emissions by providing accurate feedback to the engine control unit
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring optimal sensor operation

Installation Notes and Tips

When installing the Delphi ES20168 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use the correct thread size (18 x 1.5 mm) and torque specifications to prevent damage. Verify the sensor position—rear, rear left, or rear right—matches the vehicle’s requirements. The included instruction sheet provides detailed installation guidance. It is recommended to inspect wiring and connectors for damage before installation to ensure proper sensor function.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM specifications for durability and performance. The ES20168 part undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.