Bosch 13559 Oxygen Sensor - Upstream

Overview of Bosch Actual OE Oxygen Sensor 13559

The Bosch Actual OE Oxygen Sensor 13559 is designed specifically for select BMW models, including the 318i, 318is, 318ti, 540i, 740i, 740iL, 840Ci, and Z3. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

• Specific fit for BMW 318i, 318is, 318ti, 540i, 740i, 740iL, 840Ci, and Z3 models
• Heated narrow-band oxygen sensor for reliable emissions monitoring
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 10.9-inch wiring harness with 4-pin female connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade for dependable performance

Detailed Product Description

The Bosch Actual OE Oxygen Sensor 13559 is engineered to meet the exact specifications of the original equipment for compatible BMW vehicles. Featuring a narrow-band heated sensor type, it provides accurate oxygen level readings essential for maintaining proper engine combustion and reducing harmful emissions. The sensor includes a 10.9-inch wiring harness with a 4-wire, 4-terminal female pin connector, ensuring a secure and precise electrical connection. Its threaded mounting design with an 18 mm diameter and 22 mm hex size allows for straightforward installation. The sensor's metal housing finished in steel offers durability and resistance to harsh engine conditions. This sensor is a standard replacement grade part, making it a reliable option for maintaining emission control systems in BMW 318i, 318is, 318ti, 540i, 740i, 740iL, 840Ci, and Z3 models.

About Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor product line focuses on delivering sensors that match original equipment specifications for precise fit and function. This line is designed to provide consistent performance and reliability, ensuring that emission control systems operate as intended by the vehicle manufacturer. The 13559 sensor is part of this line, offering a direct replacement solution for specific BMW models with narrow-band heated sensor requirements.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved engine efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce vehicle emissions to meet regulatory standards
• Prevents poor fuel economy caused by faulty oxygen sensors
• Eliminates rough idling or engine hesitation linked to sensor failure

Installation Notes and Tips

• Ensure compatibility with BMW 318i, 318is, 318ti, 540i, 740i, 740iL, 840Ci, and Z3 models before installation
• Use a 22 mm oxygen sensor socket for proper removal and installation
• Check wiring harness and connector for secure fit and no damage
• Apply anti-seize compound on threads if recommended by vehicle manufacturer
• Verify sensor operation with diagnostic tools after installation

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The Actual OE Oxygen Sensor 13559 undergoes rigorous testing to comply with OEM specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to provide confidence in the product's longevity and function.