Bosch 15090 Oxygen Sensor - Upstream Right

Overview of Bosch Actual OE Oxygen Sensor 15090

The Bosch Actual OE Oxygen Sensor 15090 is designed specifically for select Mercedes-Benz models including the C43 AMG, C280, CLK320, and CLK430. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

• Specific fit for Mercedes-Benz C43 AMG, C280, CLK320, CLK430
• Heated narrow-band oxygen sensor for reliable operation
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 23.1-inch wiring harness with 4-pin female connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade with universal OE compatibility

Details on Bosch Actual OE Oxygen Sensor Product Line

The Actual OE Oxygen Sensor line by Bosch is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This product line focuses on delivering consistent sensor performance and durability, ensuring that emissions control systems function as intended. The 15090 sensor maintains the integrity of the vehicle’s emission system by using a narrow-band heated sensor design, which is critical for accurate oxygen level readings in exhaust gases.

Technical Specifications and Features

This Bosch oxygen sensor features a 4-wire configuration with a female 4-pin round connector, facilitating straightforward installation and secure electrical connections. The sensor’s overall length is 26.9 inches, with a wiring harness length of 23.1 inches and a sealing surface to connector length of 25.7 inches, providing ample reach for proper placement in the exhaust system. The sensor is threaded with an 18 mm diameter and includes a 22 mm hex size for installation using standard tools. The metal housing and heated element ensure durability and quick sensor response times under various operating conditions.

Applications and Common Issues Addressed

• Restores accurate air-fuel ratio readings for Mercedes-Benz C43 AMG, C280, CLK320, and CLK430
• Resolves engine performance issues related to faulty oxygen sensors
• Helps correct rough idling and poor fuel economy caused by sensor failure
• Supports emission control compliance by maintaining proper exhaust gas monitoring
• Eliminates check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Bosch 15090 oxygen sensor, ensure the vehicle is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness routing to prevent contact with hot exhaust components or moving parts. The threaded mounting type requires proper torque to avoid exhaust leaks or sensor damage. Since this sensor is a specific fit for certain Mercedes-Benz models, confirm compatibility before installation.

Quality Assurance and Warranty

Bosch manufactures the Actual OE Oxygen Sensor 15090 to meet stringent quality standards, ensuring reliable performance and durability. The sensor is constructed with high-grade materials including a metal housing and heated element for consistent operation. While specific warranty details may vary, Bosch typically offers coverage against manufacturing defects, providing confidence in the sensor’s longevity and function.