Bosch 17188 Oxygen Sensor - Upstream Right

Bosch Wideband O2 Sensor for Volvo

Bosch Part Number 17188 is an Actual OE Oxygen Sensor built for precise air-fuel ratio monitoring in wideband applications. It delivers fast, continuous feedback to the ECU for accurate mixture control, stable drivability, and lower emissions.

Compatible With 2003-2005 Volvo S80, upstream right, and 2003-2005 Volvo XC90, upstream right. This Bosch wideband sensor uses a heated design, threaded mounting, and a specific-fit harness for direct replacement service on the listed vehicles.

Key Features

• Wideband A/F oxygen sensor for continuous lambda-range measurement
• Heated sensor design for faster response and improved cold-start operation
• Specific fit with included wiring harness
• 5-wire design with 6 terminals and rectangular male connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Overall length: 40.2 in; sealing surface to connector end: 39 in
• Steel finish with metal housing for OE-style durability

Product Details

Bosch pioneered the wideband oxygen sensor design used in modern engine management, and Part Number 17188 reflects that OE development background. The planar pump-cell architecture provides detailed air-fuel ratio data across the full operating range, helping the engine control unit make precise fueling adjustments during idle, cruise, acceleration, and load changes. For Volvo S80 and Volvo XC90 upstream right applications, this sensor supports accurate emissions control and consistent engine operation.

This part cross-references Monroe Shocks & Struts (e.g., 30637519) for the same application.

Common Issues This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn wideband sensor
• Rough idle or inconsistent throttle response caused by poor mixture control
• Reduced fuel economy from inaccurate exhaust feedback
• Elevated emissions from delayed or unstable sensor response

Installation Notes

Verify the upstream right location before installation and confirm connector shape, terminal count, and thread size match the original sensor. Use proper oxygen sensor service tools to avoid damaging the threaded bung or sensor body, and inspect the harness routing to keep it clear of heat and moving components.

Quality Assurance

Bosch supplies OE-level oxygen sensor technology backed by more than five decades of engine management development. Bosch Part Number 17188 is built to the same standards used in modern OE applications for accurate signal output and dependable operation.