Bosch 15339 Oxygen Sensor - Downstream

Overview of Bosch Actual OE Oxygen Sensor 15339

The Bosch Actual OE Oxygen Sensor 15339 is designed specifically for BMW M5 and M6 models, providing precise emission control and optimal engine performance. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings for efficient combustion and reduced emissions.

• Specific fit for BMW M5 and M6 models
• Heated narrow-band oxygen sensor for fast response
• Threaded mounting type with 18 mm thread diameter
• 10.9-inch wiring harness length with 4-wire configuration
• Durable metal housing with steel finish and 22 mm hex size
• Includes wiring harness and male round connector
• Standard replacement grade for reliable performance

Detailed Features and Specifications

This Bosch oxygen sensor (part number 15339) features a 4-wire heated design that allows for quicker sensor warm-up and more accurate readings under various operating conditions. The sensor is a narrow-band type, ideal for monitoring exhaust oxygen levels to maintain proper air-fuel ratios in BMW M5 and M6 engines. It comes with a 10.9-inch wiring harness and a 13.4-inch length from sealing surface to connector end, ensuring proper fitment and ease of installation.

The sensor’s threaded mounting type with an 18 mm thread diameter and 22 mm hex size allows for secure and straightforward installation. The metal housing with a steel finish provides durability and resistance to harsh engine environments. The connector is male with a round shape and blade-type terminals, designed for a specific fit rather than universal application.

About Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, ensuring compatibility and performance consistent with factory-installed parts. This product line focuses on delivering reliable emission control sensors that maintain engine efficiency and comply with emission standards. The 15339 sensor is part of this line, offering a direct replacement solution for BMW M5 and M6 vehicles.

Common Applications and Problem Solving

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Resolves engine performance issues related to faulty oxygen sensors
• Helps reduce exhaust emissions and prevent failed emissions tests
• Eliminates rough idling and poor fuel economy caused by sensor failure
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Bosch 15339 oxygen sensor, ensure the engine is cool to avoid burns. Use the 22 mm hex size for proper sensor removal and installation torque. Verify the wiring harness length and connector type match the vehicle’s factory specifications to avoid electrical issues. Thread the sensor carefully to prevent damage to the mounting threads. No mounting bracket is included, so use the existing vehicle hardware.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. The Actual OE Oxygen Sensor 15339 undergoes rigorous testing to comply with OEM specifications. While specific warranty details are not provided here, Bosch typically offers coverage against manufacturing defects, supporting long-term use in BMW M5 and M6 vehicles.