Bosch 18086 Oxygen Sensor - Downstream or Downstream Right

Reliable Oxygen Sensor for Mercedes-Benz C250 and SLK250

The Bosch Validated Oxygen Sensor 18086 is designed specifically for Mercedes-Benz vehicles, including the C250 and SLK250 models. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance.

• Specific fit for Mercedes-Benz C250 and SLK250
• Heated narrow-band oxygen sensor for precise air-fuel mixture readings
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 23.6-inch wiring harness with 4-pin rectangular female connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade with 4 female terminals
• Overall length of 27.4 inches and wiring harness length of 23.6 inches

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering reliable and precise emission control components that meet OEM specifications. The 18086 sensor is engineered to provide consistent performance and durability, ensuring your Mercedes-Benz maintains proper exhaust emissions and engine efficiency.

Product Details and Specifications

This Bosch oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature for accurate oxygen level detection. The sensor is threaded with an 18 mm diameter and includes a 22 mm hex size for straightforward installation. The wiring harness is 23.6 inches long and comes with a 4-pin rectangular female connector, matching the specific fitment requirements of Mercedes-Benz C250 and SLK250 models. Constructed with a metal housing finished in steel, this sensor is built to withstand harsh engine conditions. The overall length from sealing surface to connector end is 26.2 inches, providing ample reach for proper placement.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces harmful emissions by ensuring proper catalytic converter function
• Prevents engine performance issues caused by faulty oxygen sensors
• Supports smooth engine idling and acceleration in Mercedes-Benz C250 and SLK250

Installation Notes and Tips

When installing the Bosch 18086 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use a 22 mm wrench or socket for proper tightening without over-torquing. The 4-pin rectangular female connector should be securely connected to the vehicle’s wiring harness to maintain signal integrity. Since this is a specific fit sensor, verify compatibility with your Mercedes-Benz C250 or SLK250 before installation.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Bosch Validated Oxygen Sensor 18086 undergoes rigorous testing to comply with OEM specifications. While specific warranty details are not provided here, Bosch typically offers coverage against manufacturing defects. Refer to Bosch or your parts provider for exact warranty terms.