HomeEmission Control > SensorsBosch 17230 Oxygen Sensor - Upstream
Part #: 17230

Bosch 17230 Oxygen Sensor - Upstream

Actual OE Oxygen Sensor, Upstream
3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Actual OE Oxygen Sensor, Upstream
Fitment: BMW, X3 and 528i
Easy Returns — Return within 60 days for a full refund
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Overview of Bosch Actual OE Oxygen Sensor 17230

The Bosch Actual OE Oxygen Sensor 17230 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 maintain efficient combustion and reduce emissions.

  • Heated oxygen sensor for faster response times
  • Specific fit for BMW 528i and X3 models
  • Wide-band sensor type for precise air-fuel ratio measurement
  • 36.8-inch wiring harness length with included harness
  • Blade terminal type with male connector and terminal
  • Threaded mounting type with 18 mm thread diameter
  • Durable metal housing with steel finish
  • Standard replacement grade for reliable performance
  • Connector shape: oblong, terminal quantity: 6 wires
  • Hex size: 22 mm for installation with standard tools

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 specific vehicle applications such as the BMW 528i and X3. The 17230 part number represents a standard replacement sensor with a heated design to ensure quicker sensor activation and accurate readings under various operating conditions.

Detailed Product Description

This Bosch oxygen sensor features a heated wide-band design that allows for precise monitoring of the exhaust gases, helping the engine control unit adjust the air-fuel mixture efficiently. The sensor includes a 36.8-inch wiring harness with a male oblong connector and blade terminals, facilitating straightforward installation and secure electrical connections. Its metal housing and steel finish provide durability against harsh engine environments. The threaded mounting type with an 18 mm diameter and 22 mm hex size ensures compatibility with factory mounting points on BMW 528i and X3 models. With five wires and six terminals, this sensor supports complex signal transmission required for accurate emission control.

Common Applications and Issues Addressed

  • Restores accurate air-fuel ratio readings for improved fuel efficiency
  • Resolves check engine light triggers related to oxygen sensor faults
  • Helps reduce harmful emissions by maintaining proper combustion
  • Eliminates rough idling or engine hesitation caused by faulty sensors
  • Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

Installation requires a 22 mm oxygen sensor socket or wrench. Ensure the engine is cool before removal to avoid injury. The sensor’s specific fitment for BMW 528i and X3 models means no modifications are necessary for mounting or wiring. Verify the connector orientation matches the vehicle harness to prevent connection issues. The included wiring harness simplifies replacement without the need for splicing or additional adapters.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure reliable performance. The Actual OE Oxygen Sensor 17230 is a standard replacement part designed to match OEM specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to provide confidence in product durability and function.

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012BMWX33.0LL6UpstreamCylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor
2011BMW528i3.0LL6UpstreamCylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor
2011BMWX33.0LL6UpstreamCylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.