Bosch 15680 Oxygen Sensor - Downstream or Downstream Front

Overview of Bosch Actual OE Oxygen Sensor 15680

The Bosch Actual OE Oxygen Sensor 15680 is designed specifically for select BMW models, including the 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3. 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 BMW 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3 models
• Heated narrow-band oxygen sensor for reliable operation
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 35.9-inch wiring harness with 4 male blade terminals and an oblong male connector
• Constructed with durable metal housing and steel finish
• Standard replacement grade for consistent 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 precise sensor readings and durability, ensuring compatibility and performance that align with the original parts used in BMW vehicles. The 15680 sensor maintains the integrity of the emissions system while supporting efficient engine operation.

Detailed Product Description

This Bosch oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate emissions monitoring. The sensor’s metal housing and steel finish provide resistance to harsh under-hood conditions. With a threaded mounting type and an 18 mm thread diameter, installation aligns with factory specifications. The 35.9-inch wiring harness includes four wires and a male oblong connector with blade terminals, ensuring a secure and precise electrical connection. The overall length of 39.6 inches and a 38.4-inch length from sealing surface to connector end accommodate proper fitment in the exhaust system of compatible BMW models.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for BMW 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing correct emissions data
• Helps reduce harmful exhaust emissions
• Prevents engine performance issues caused by faulty oxygen sensors

Installation Notes and Tips

• Ensure the vehicle is compatible with the Bosch 15680 oxygen sensor before installation
• Use a 22 mm oxygen sensor socket for removal and installation
• Do not overtighten; torque to manufacturer specifications to avoid damage
• Verify wiring harness connections are secure and free of corrosion
• Replace the sensor when the engine and exhaust system are cool to prevent injury

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards and are tested for durability and performance. The Actual OE Oxygen Sensor 15680 is a standard replacement grade part designed to match OEM specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to ensure reliability and customer confidence.