Bosch 16031 Oxygen Sensor - Downstream or Downstream Left

Reliable Oxygen Sensor for BMW 740i, 740Li, and X6 Models

The Bosch Actual OE Oxygen Sensor 16031 is designed specifically for select BMW vehicles, including the 740i, 740Li, and X6. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance by precisely monitoring exhaust gases.

• Specific fit for BMW 740i, 740Li, and X6 models
• Heated narrow-band oxygen sensor for improved response time
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 20.7-inch wiring harness with 4-pin female connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade for reliable emissions control

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 precise sensor readings and compatibility with specific vehicle models, ensuring proper emissions system function and compliance with environmental standards. The 16031 sensor maintains the quality and fitment expected from Bosch’s OE-level components.

Detailed Product Description and Attributes

This Bosch oxygen sensor features a narrow-band heated design, which allows for faster sensor warm-up and more accurate air-fuel mixture readings. The sensor’s metal housing and steel finish provide durability against harsh engine conditions. It includes a 20.7-inch wiring harness with a 4-wire, 4-pin female connector in a round shape, facilitating straightforward installation and secure electrical connections. The sensor mounts via a threaded 18 mm diameter fitting, compatible with the specified BMW models. The overall length of the sensor is 24 inches, with a sealing surface to connector length of 22.8 inches, ensuring proper fitment within the exhaust system.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps resolve check engine light codes related to oxygen sensor failure
• Reduces emissions by ensuring proper air-fuel mixture control
• Prevents rough idling and engine performance issues caused by faulty sensors
• Supports compliance with emissions testing requirements

Installation Notes and Tips

When installing the Bosch 16031 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness length and connector type match the vehicle’s factory setup to avoid electrical issues. Thread the sensor carefully to prevent cross-threading and torque to manufacturer specifications. No mounting bracket is included, so use the existing mounting point on the vehicle.

Quality Assurance and Warranty

Bosch manufactures the Actual OE Oxygen Sensor 16031 to meet strict quality standards, ensuring reliable performance and durability. This sensor is a standard replacement grade part designed to match OEM specifications. While specific warranty details are not provided here, Bosch typically offers limited warranties on their OE replacement parts to cover defects in materials and workmanship.