Bosch 15097 Oxygen Sensor - Upstream

Bosch OE Oxygen Sensor for Volvo Upstream Applications

Bosch Part Number 15097 is a specific-fit, narrow-band heated oxygen sensor built for upstream use on select Volvo applications. It provides the ECU with air-fuel-ratio feedback for stable closed-loop fuel control, accurate combustion management, and lower emissions.

Compatible With 1994-1997 Volvo 850 upstream and 1998 Volvo C70, S70, and V70 upstream, this Bosch Actual OE Oxygen Sensor is built around a threaded 18 mm mount, 4-wire blade-terminal design, and a rectangular male connector for direct replacement service.

Key Features

• Bosch Actual OE Oxygen Sensor, Part Number 15097
• Narrow-band heated oxygen sensor for upstream placement
• Specific fit for select Volvo 850, C70, S70, and V70 applications
• 4-wire design with blade terminals and rectangular male connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Wiring harness included with 17.2 in harness length
• Metal housing with high-temperature-resistant construction

Product Details

Bosch developed its oxygen sensor technology through decades of OE engineering, beginning with early sensor designs and later advancing to planar narrowband construction for faster light-off and quicker closed-loop operation. Part Number 15097 uses that OE-focused background in a standard replacement format for upstream Volvo service, where precise sensor response matters for fuel trim control and emissions performance. This part cross-references 9202719 for the same application.

Fits 1994-1997 Volvo 850, upstream. Fits 1998 Volvo C70, upstream. Fits 1998 Volvo S70, upstream. Fits 1998 Volvo V70, upstream.

Common Issues This Sensor Can Address

• Fault codes related to oxygen sensor response or signal performance
• Rough idle caused by inaccurate air-fuel feedback
• Excess fuel consumption from delayed closed-loop correction
• Failed emissions testing tied to a worn upstream sensor
• Driveability problems from degraded heater or sensing element performance

Installation Notes and Tips

Install this sensor in the upstream location specified for the vehicle application and verify the 18 mm threaded bung before replacement. Confirm connector shape, terminal count, and harness routing before installation, and inspect the exhaust threads for damage or contamination. Because this is a heated narrow-band sensor, proper electrical connection and secure harness placement are important for stable operation.

Quality Assurance

Bosch supplies this Actual OE Oxygen Sensor using OE-proven sensor development, ceramic sensing elements, optimized heater control, and materials selected for high thermal and vibration loads. The design reflects Bosch’s long-standing OE engineering focus for accurate sensor output and durable aftermarket replacement performance.