Delphi ES10290 Oxygen Sensor

Delphi ES10290 Heated Oxygen Sensor Overview

The Delphi ES10290 is a heated oxygen sensor designed for precise emission control in select BMW models. Engineered with a 4-wire configuration and a round connector, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for reliable operation
• Round connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified BMW models
• Overall length of 425.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned center, upstream for precise exhaust gas monitoring

Technical Details and Compatibility

The Delphi ES10290 oxygen sensor is specifically designed for use in BMW vehicles including the 318i, 318is, 318ti, 325i, 325is, 530i, 840Ci, and M3 models. Its heated sensor type allows for faster warm-up times, improving emission control efficiency shortly after engine start. The 4-wire design supports both sensor heating and signal transmission, ensuring accurate oxygen level detection. The round connector and 18 x 1.5 mm thread size provide a secure and direct fit, minimizing installation issues. With an overall length of 425.0 mm, this sensor fits the center, upstream position in the exhaust system, which is critical for monitoring exhaust gases before catalytic conversion.

Common Applications and Problem Resolution

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by incorrect oxygen sensor readings
• Prevents increased emissions and failed emissions tests
• Addresses poor fuel economy linked to faulty oxygen sensors
• Eliminates rough idling and hesitation due to inaccurate sensor data

Installation Notes and Tips

When installing the Delphi ES10290 oxygen sensor, ensure the vehicle is compatible with the specified BMW models. Use the included instruction sheet for proper torque specifications and wiring connections. The sensor should be installed in the center, upstream position of the exhaust manifold or pipe. It is recommended to disconnect the battery before installation to avoid electrical shorts. Verify the connector shape matches the vehicle harness to ensure a secure connection.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES10290 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. Refer to the product documentation or manufacturer for exact warranty terms.