Bosch 16239 Oxygen Sensor - Downstream

Overview of Bosch Actual OE Oxygen Sensor 16239

The Bosch Actual OE Oxygen Sensor 16239 is designed specifically for select BMW models, ensuring precise emission control and optimal engine performance. This narrow-band heated oxygen sensor provides accurate air-fuel mixture readings to maintain efficient combustion and reduce emissions.

• Compatible with BMW 228i, 320i, 328i, 428i, 528i, X1, X3, X4, X5, and Z4 models
• Wiring harness length: 18.3 inches with 4 wires of 18 gauge
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Heated narrow-band oxygen sensor for faster response times
• Standard replacement grade with metal housing and steel finish
• Connector: male, rectangular shape with 4 blade terminals
• Overall length: 21.7 inches, wire length: 21.3 inches

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing reliable performance and fitment for specific vehicle applications. This product line focuses on delivering sensors that match factory standards in terms of wiring, connectors, and sensor response, making the 16239 a direct replacement for compatible BMW models.

Detailed Product Description

The Bosch 16239 oxygen sensor is a narrow-band heated sensor designed to monitor exhaust oxygen levels accurately. It features a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size for secure installation. The sensor includes a wiring harness measuring 18.3 inches in length, with four 18-gauge wires terminating in a male rectangular connector with four blade terminals. The metal housing and steel finish ensure durability under high-temperature conditions. This sensor is compatible with various BMW models including the 228i, 320i, 328i, 428i, 528i, and several X and Z series vehicles, providing a specific fit that maintains factory performance.

Common Issues Addressed by Bosch Oxygen Sensor 16239

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor accuracy

Installation Notes and Tips

• Ensure the vehicle is compatible with Bosch part number 16239 before installation
• Use a 22 mm oxygen sensor socket for removal and installation
• Do not overtighten the sensor; torque to manufacturer specifications
• Verify connector orientation and secure wiring harness to avoid damage
• Allow the engine to cool before replacing the sensor to prevent burns

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable operation and durability. The Actual OE Oxygen Sensor 16239 is a standard replacement grade part designed to match OEM specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship for a defined period. Always consult the product documentation or supplier for exact warranty terms.