Bosch 17208 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Bosch Actual OE Oxygen Sensor 17208

The Bosch Actual OE Oxygen Sensor 17208 is designed specifically for select BMW models, including the 545i, 645Ci, 745i, 745Li, 760i, and 760Li. This heated wide-band oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and emissions control.

• Heated oxygen sensor for faster response times
• Specific fit for BMW 5, 6, and 7 Series models
• Wide-band sensor type for precise air-fuel ratio monitoring
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Includes 21.7-inch wiring harness with oblong male connector
• Standard replacement grade with metal housing and steel finish
• 5 wires and 6 terminals with blade terminal type
• Overall length of 25 inches for proper fitment

Detailed Product Description

The Bosch Actual OE Oxygen Sensor 17208 is engineered as a direct replacement part for specific BMW vehicles, ensuring compatibility and reliable performance. Featuring a heated design, this sensor reaches operating temperature quickly, improving emissions control and fuel efficiency. The wide-band sensor type provides accurate and continuous measurement of oxygen levels in the exhaust gases, which is critical for the engine control unit to adjust fuel injection precisely.

This sensor includes a 21.7-inch wiring harness with an oblong male connector and blade terminal type, facilitating straightforward installation. The sensor is threaded with an 18 mm diameter and a 22 mm hex size, matching OEM specifications. Constructed with a durable metal housing and finished in steel, it is built to withstand harsh engine conditions. The Bosch Actual OE Oxygen Sensor line is known for meeting original equipment standards, making it a reliable choice for maintaining your BMW’s emission system.

Compatible BMW Models and Applications

• BMW 545i
• BMW 645Ci
• BMW 745i
• BMW 745Li
• BMW 760i
• BMW 760Li

This oxygen sensor is designed specifically for these BMW models, ensuring proper fit and function without modification.

Common Issues Addressed by Bosch Oxygen Sensor 17208

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine hesitation or rough idling caused by sensor malfunction
• Reduced engine performance and drivability issues

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the Bosch sensor into the exhaust manifold or pipe. Use a 22 mm oxygen sensor socket for proper tightening. Ensure the wiring harness is routed away from hot engine components to prevent damage. The sensor’s heated feature will activate once installed, so no additional wiring modifications are necessary. Verify connector compatibility with the vehicle’s harness before installation.

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 17208 is manufactured to meet OEM specifications for fit, form, and function. Bosch provides a standard replacement grade sensor with durable metal housing and reliable electrical connections. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to ensure long-term reliability in emission control applications.