Delphi ES10277 Oxygen Sensor

Delphi ES10277 Oxygen Sensor Overview

The Delphi ES10277 is a non-heated oxygen sensor designed for upstream installation in select Audi, Mercedes-Benz, Porsche, and Volkswagen models. This sensor helps maintain optimal engine performance and emission control by accurately monitoring exhaust oxygen levels.

• Non-heated oxygen sensor type for reliable emissions feedback
• Single wire design simplifies installation and wiring
• Universal connector shape compatible with multiple vehicle models
• Thread size of 18 x 1.5 mm ensures proper fitment
• Overall length of 210.0 mm for precise positioning
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES10277 oxygen sensor features a non-heated sensor element with a single wire, making it suitable for upstream placement in the exhaust system. Its universal connector shape allows compatibility across various models, including Audi 4000 Quattro, Cabriolet, Coupe, Fox, Golf, Jetta, Quantum, and Quattro, as well as Mercedes-Benz 380SE, 380SL, 500SEC, and 500SEL, and Porsche 944. The sensor’s thread size of 18 x 1.5 mm and overall length of 210.0 mm ensure a secure and accurate fit in the designated upstream position.

Purpose and Common Applications

• Monitors oxygen levels in exhaust gases to optimize air-fuel mixture
• Helps reduce harmful emissions by providing feedback to the engine control unit
• Addresses issues such as poor fuel economy and rough idling
• Prevents check engine light triggers related to oxygen sensor faults
• Supports compliance with emission regulations in compatible Audi, Mercedes-Benz, Porsche, and Volkswagen vehicles

Installation Notes and Tips

When installing the Delphi ES10277 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use the included instruction sheet for proper torque specifications and wiring connections. The universal connector shape facilitates straightforward integration with existing harnesses. Verify the upstream position before installation to maintain sensor accuracy and engine performance.

Quality Assurance and Warranty

Delphi manufactures the ES10277 oxygen sensor to meet OEM standards for durability and performance. While specific warranty details may vary, Delphi products typically come with a limited warranty covering defects in materials and workmanship. This oxygen sensor is engineered to provide consistent operation within the emission control system of compatible Audi, Mercedes-Benz, Porsche, and Volkswagen models.