Bosch 16749 Oxygen Sensor - Downstream, Downstream Right or Upstream

Reliable Oxygen Sensor for Mercedes-Benz and Smart Vehicles

The Bosch Actual OE Oxygen Sensor 16749 is designed to provide accurate air-fuel mixture readings for select Mercedes-Benz and Smart models. This narrow-band heated oxygen sensor ensures optimal engine performance and emission control by delivering precise data to your vehicle's engine management system.

• Specific fit for Mercedes-Benz and Smart models including B200, C63 AMG, E550, SLK350, and more
• Heated narrow-band oxygen sensor type for faster response times
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size for secure installation
• Includes a 10-inch wiring harness with a 4-wire, female rectangular connector
• Constructed with durable metal housing and steel finish for long-lasting use
• Standard replacement grade ensuring reliable performance

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line 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, making it suitable for emission control systems in various Mercedes-Benz and Smart vehicles. The 16749 sensor maintains the integrity of your vehicle’s emission system by accurately monitoring exhaust gases.

Product Details and Specifications

This oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate readings. The sensor includes a 10-inch wiring harness with four wires and a female rectangular connector, ensuring compatibility with the vehicle’s existing wiring. The threaded mounting type with an 18 mm diameter and 22 mm hex size facilitates straightforward installation. The sensor’s metal housing and steel finish provide resistance to heat and corrosion, supporting long-term reliability. With an overall length of 13.4 inches and a wiring harness length of 10 inches, this sensor fits precisely in the designated mounting location.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved engine efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by ensuring proper fuel combustion
• Improves fuel economy by providing precise sensor data
• Prevents rough idling and engine performance issues caused by faulty sensors

Installation Notes and Tips

Before installation, ensure the vehicle is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. The threaded sensor mounts securely with an 18 mm thread diameter. Verify the connector type matches the vehicle’s wiring harness; this sensor uses a female rectangular connector with four terminals. Avoid damaging the wiring harness during installation and confirm the sensor is properly tightened to prevent exhaust leaks.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards and are designed as standard replacement parts. The Actual OE Oxygen Sensor 16749 undergoes rigorous testing to ensure durability and performance. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.