Delphi ES20413 Oxygen Sensor - Rear

Delphi ES20413 Heated Oxygen Sensor Overview

The Delphi ES20413 is a heated oxygen sensor designed specifically for rear position installation on select Mini models. Engineered to provide accurate air-fuel mixture readings, this sensor supports efficient engine performance and emission control for Mini Cooper, Cooper Countryman, and Cooper Paceman vehicles.

• Heated sensor type for faster activation and improved accuracy
• Four-wire design ensuring reliable signal transmission
• Flat connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified Mini models
• Overall length of 480.0 mm for correct positioning
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES20413 oxygen sensor features a heated element that allows it to reach operating temperature quickly, reducing the time the engine runs in open-loop mode. Its four-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The flat connector shape is designed to match the factory wiring harness on Mini Cooper, Cooper Countryman, and Cooper Paceman models, facilitating straightforward installation. With a thread size of 18 x 1.5 mm and an overall length of 480.0 mm, this sensor fits precisely in the rear position of the exhaust system, maintaining proper sensor placement for accurate emissions monitoring.

Common Applications and Problem Resolution

• Helps resolve check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing accurate air-fuel ratio data
• Reduces harmful emissions by enabling proper catalytic converter function
• Addresses rough idling or poor engine performance caused by faulty sensors
• Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

When installing the Delphi ES20413 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the included instruction sheet for reference. Confirm the sensor is installed in the rear position of the exhaust system on compatible Mini Cooper, Cooper Countryman, or Cooper Paceman models. Tighten the sensor to the manufacturer’s torque specifications to prevent leaks or damage. Verify the flat connector is securely attached to the vehicle’s wiring harness to maintain proper electrical connection.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20413 part number 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, providing confidence in the sensor’s long-term functionality.