Bosch 15057 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Volvo S70 and V70 Models

The Bosch Validated Oxygen Sensor 15057 is designed specifically for Volvo S70 and V70 vehicles, ensuring precise emission control and optimal engine performance. This heated, wide-band oxygen sensor provides accurate air-fuel mixture readings to help maintain efficient combustion and reduce harmful emissions.

• Heated oxygen sensor for faster activation
• 18.4-inch wiring harness with connector included
• Blade terminal type with 4-wire configuration
• Threaded mounting type with 18 mm thread diameter
• Durable metal housing with steel finish
• Compatible with Volvo S70 and V70 models
• Standard replacement grade for reliable performance

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor line is engineered to meet strict quality and performance standards, providing a reliable replacement option for emission control sensors. This product line focuses on delivering sensors that are tested and validated for specific vehicle applications, such as the Volvo S70 and V70, ensuring proper fitment and function. The 15057 sensor maintains the integrity of the original equipment by offering a heated, wide-band sensor design that supports accurate fuel management and emissions monitoring.

Product Details and Specifications

This Bosch oxygen sensor features a heated element to reduce warm-up time, allowing the sensor to reach operating temperature quickly for accurate readings. The 4-wire design includes a blade terminal type and a rectangular male connector, facilitating straightforward electrical connections. The sensor’s wiring harness measures 18.4 inches, with an overall length of 21.9 inches from the sealing surface to the end of the connector, providing ample length for installation. The sensor mounts via a threaded 18 mm diameter fitting and does not include a mounting bracket. Constructed with a metal housing and finished in steel, this sensor is built for durability and consistent performance.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for Volvo S70 and V70
• Helps resolve engine performance issues related to faulty oxygen sensors
• Reduces emissions by ensuring proper combustion control
• Prevents check engine light triggers caused by sensor failure
• Supports fuel efficiency by maintaining correct sensor feedback

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Bosch 15057 sensor into the existing mounting point. Ensure the sensor’s wiring harness is routed away from hot exhaust components to prevent damage. The 22 mm hex size allows for standard oxygen sensor socket use during installation. Verify connector compatibility with the vehicle’s wiring harness before finalizing the connection. No mounting bracket is included, so use the existing mounting hardware.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 15057 is manufactured to meet OEM specifications for fit, form, and function. Bosch’s quality control processes ensure consistent sensor performance and durability. This sensor is a standard replacement grade part designed to provide reliable operation within the emission control system of Volvo S70 and V70 vehicles. Warranty details should be confirmed with the parts distributor or Bosch directly.