Bosch 15558 Oxygen Sensor - Upstream

Overview of Bosch Validated Oxygen Sensor 15558

The Bosch Validated Oxygen Sensor 15558 is designed specifically for Volvo S70 and V70 models, providing precise air-fuel mixture readings to optimize engine performance and emissions control. This heated, wide-band oxygen sensor ensures accurate data transmission for efficient combustion management.

• Heated oxygen sensor for faster response times
• Specific fit for Volvo S70 and V70 vehicles
• Wide-band sensor type for accurate air-fuel ratio measurement
• 13.5-inch wiring harness with 4 wires and blade terminals
• Threaded mounting type with 18 mm thread diameter
• Durable metal housing with steel finish
• Rectangle-shaped male connector included with wiring harness
• Standard replacement grade for reliable performance
• Overall length of 16.9 inches for proper fitment

About the Bosch Validated Oxygen Sensor Product Line

The Bosch Validated Oxygen Sensor line is engineered to meet or exceed OEM specifications, ensuring compatibility and reliable operation in emission control systems. This product line focuses on delivering sensors that have been rigorously tested and validated for specific vehicle applications, such as the Volvo S70 and V70, to maintain optimal engine efficiency and emission standards.

Detailed Product Description

The Bosch 15558 oxygen sensor features a heated design that accelerates sensor activation, reducing warm-up time and improving emission control immediately after engine start. Its wide-band sensor technology provides precise measurement of oxygen levels in the exhaust gases, enabling the engine control unit to adjust fuel injection accurately. The sensor includes a 13.5-inch wiring harness with four wires terminated in blade-type terminals, housed in a durable metal casing with a steel finish. The connector is a male, rectangle-shaped design, ensuring secure and proper electrical connection. The sensor mounts via a threaded 18 mm diameter fitting, compatible with the original equipment specifications for Volvo S70 and V70 models.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Resolves engine performance issues related to faulty oxygen sensors
• Helps reduce harmful emissions by maintaining proper air-fuel ratio
• Eliminates check engine light triggers caused by sensor failure
• Supports smooth engine idling and acceleration response

Installation Notes and Tips

When installing the Bosch 15558 oxygen sensor, ensure the engine is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length and connector type match the vehicle’s original equipment. Do not overtighten the threaded mounting; torque to manufacturer specifications to prevent damage. The sensor does not include a mounting bracket, so use the existing mounting point on the exhaust system.

Quality Assurance and Warranty

This Bosch oxygen sensor is a standard replacement grade part, manufactured with high-quality materials including a metal housing for durability. Bosch products undergo strict quality control and validation processes to ensure reliable performance. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control components; consult product documentation or authorized sources for exact warranty terms.