Bosch 17028 Oxygen Sensor - Upstream Left or Upstream Right

Reliable Oxygen Sensor for BMW 550i, 650i, 750i, and 750Li

The Bosch Actual OE Oxygen Sensor 17028 is designed specifically for select BMW models, ensuring precise emissions control and optimal engine performance. This heated wide-band oxygen sensor provides accurate air-fuel mixture readings to help maintain your vehicle’s efficiency and reduce harmful emissions.

• Heated oxygen sensor for faster response times
• Specific fit for BMW 550i, 650i, 750i, and 750Li models
• 22.8-inch wiring harness length with included harness
• Blade terminal type with male connector and terminal gender
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Wide-band sensor type for precise air-fuel ratio measurement
• Durable metal housing with steel finish
• Standard replacement grade for reliable performance
• Oblong connector shape with 5 wires and 6 terminals

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This product line focuses on delivering consistent sensor performance and durability, making it suitable for emission control systems in BMW vehicles. The 17028 sensor maintains the integrity of your vehicle’s emissions system by ensuring accurate oxygen level detection and compatibility with the vehicle’s engine management system.

Detailed Product Description

This Bosch oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving sensor response and reducing emissions during cold starts. The wide-band sensor technology offers precise measurement of the air-fuel ratio, which is critical for modern engine control units to optimize combustion efficiency. The sensor’s metal housing and steel finish provide durability against harsh engine conditions. With a 22.8-inch wiring harness and included harness, installation is straightforward, while the blade terminal and oblong male connector ensure secure electrical connections. The threaded mounting type with an 18 mm diameter and 22 mm hex size allows for proper fitment and easy replacement.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for BMW 550i, 650i, 750i, and 750Li
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing correct sensor data to the engine control unit
• Reduces harmful emissions by maintaining proper combustion control
• Eliminates rough idling or poor engine performance caused by faulty sensors

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length and connector type match your vehicle’s specifications. Avoid damaging the sensor’s wiring during installation. Thread the sensor carefully to prevent cross-threading. No mounting bracket is included, so use the existing mounting point on the vehicle.

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 17028 is manufactured to meet OEM standards for fit, form, and function. Bosch provides a standard replacement grade sensor designed for reliable operation within the vehicle’s emission control system. While specific warranty details may vary, Bosch products typically come with a limited warranty covering defects in materials and workmanship.