Bosch 17231 Oxygen Sensor - Upstream

Overview of Bosch Actual OE Oxygen Sensor 17231

The Bosch Actual OE Oxygen Sensor 17231 is designed specifically for BMW 528i and X3 models, ensuring precise emission control and optimal engine performance. This heated wide-band oxygen sensor provides accurate air-fuel mixture readings to help maintain efficient combustion.

• Heated oxygen sensor for faster response times
• Specific fit for BMW 528i and X3 vehicles
• Wide-band sensor type for precise air-fuel ratio measurement
• Includes 30.7-inch wiring harness with oblong male connector
• Threaded mounting type with 18 mm thread diameter
• Durable metal housing with 22 mm hex size for installation
• Standard replacement grade with 5 wires and 6 terminals

Detailed Features and Specifications

This Bosch oxygen sensor features a heated element to reduce warm-up time, improving sensor accuracy shortly after engine start. The sensor is a wide-band type, which provides a broader range of air-fuel ratio data compared to narrow-band sensors, making it suitable for modern BMW engines like the 528i and X3. The wiring harness length of 30.7 inches and overall length of 34.1 inches allow for proper routing and connection within the engine bay. The sensor uses a blade terminal type with a male oblong connector, ensuring secure electrical connections. Its metal housing and threaded mounting type with an 18 mm thread diameter provide durability and straightforward installation.

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line is engineered to meet original equipment specifications, offering reliable performance and compatibility. This line focuses on delivering sensors that match the exact fit and function of factory-installed parts, making the 17231 sensor a direct replacement for BMW 528i and X3 models requiring precise emission control components.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for improved fuel efficiency
• Resolves engine performance issues related to faulty oxygen sensors
• Helps reduce harmful emissions by maintaining proper air-fuel mixture
• Eliminates check engine light triggers caused by sensor failure
• Prevents rough idling and poor acceleration linked to sensor faults

Installation Notes and Tips

Installation requires a 22 mm oxygen sensor socket for proper removal and tightening. Ensure the sensor threads are clean and apply anti-seize compound if recommended by the vehicle manufacturer. The 30.7-inch wiring harness should be routed away from hot exhaust components to prevent damage. Verify connector compatibility with the male oblong connector and secure all electrical connections firmly. No mounting bracket is included, as the sensor mounts directly via threaded installation.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable operation. The Actual OE Oxygen Sensor 17231 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 to support long-term use in BMW 528i and X3 vehicles.