Bosch 17135 Oxygen Sensor - Upstream Left

Bosch Wideband O2 Sensor for Volvo S80 and XC90

Bosch Actual OE Oxygen Sensor 17135 is a wideband air-fuel sensor built for precise mixture feedback in the engine management system. It is a direct-fit replacement for select Volvo S80 and Volvo XC90 applications with upstream left placement, using OE-style construction and a heated design for stable operation.

Key Features

• Wideband A/F oxygen sensor for continuous air-fuel ratio measurement
• Heated sensor design for faster operating response
• Specific fit with threaded mounting and OE-style connector layout
• 5-wire harness with included wiring harness
• Metal housing with ceramic sensing element construction
• 18 mm thread size and 22 mm hex size
• Bosch part number 17135

Product Details

Bosch 17135 is part of the Actual OE Oxygen Sensor line, which focuses on OE-proven sensor design for modern engine management systems. This wideband sensor provides detailed air-fuel ratio feedback across the full lambda range, giving the ECU the information needed for accurate fuel control under changing load and temperature conditions. For Volvo S80 and Volvo XC90 upstream left applications, Bosch 17135 supports consistent sensor response, reliable heater control, and durable performance in demanding exhaust environments.

This part cross-references 8670279 for the same application.

Common Issues This Sensor Can Address

• Fault codes related to oxygen sensor performance
• Rough idle caused by inaccurate air-fuel ratio feedback
• Reduced fuel economy from incorrect mixture control
• Delayed sensor response during warm-up
• Emissions test failures tied to upstream sensor readings

Installation Notes

Fits 2002-2005 Volvo S80, Upstream Left. Fits 2003-2005 Volvo XC90, Upstream Left. Confirm the connector shape, terminal count, thread size, and sensor position before installation. The sensor uses a threaded mounting type and includes the wiring harness; verify harness routing and exhaust clearance during replacement. Bosch 17135 is a direct-fit, specific application sensor, so matching the original location and connector style is important for proper operation.

Quality Assurance

Bosch has more than five decades of OE sensor development and supplies oxygen sensors to vehicle manufacturers and the aftermarket with OE-proven design standards. Bosch 17135 reflects that engineering approach with wideband measurement capability, robust construction, and application-specific fitment for Volvo S80 and XC90 models.