Bosch 13052 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for BMW 535i, 635CSi, and M5 Models

The Bosch Actual OE Oxygen Sensor 13052 is designed specifically for select BMW vehicles, including the 535i, 535is, 635CSi, 735i, 735iL, and M5. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to your vehicle's engine management system.

• Brand: Bosch, Part Number: 13052
• Specific fit for BMW 535i, 535is, 635CSi, 735i, 735iL, and M5 models
• Heated narrow-band oxygen sensor for improved response time
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Wiring harness length of 56.1 inches with 4-pin female connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade with universal wiring harness included

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line is engineered to meet original equipment specifications, providing reliable performance and compatibility. This line focuses on delivering precise sensor readings and durability, making it a suitable replacement for factory-installed oxygen sensors in BMW vehicles. The 13052 sensor maintains the integrity of your vehicle’s emission control system by ensuring accurate air-fuel ratio monitoring.

Product Details and Specifications

This Bosch oxygen sensor features a narrow-band heated design, which allows for faster sensor warm-up and improved accuracy in measuring exhaust oxygen levels. The sensor includes a 4-wire configuration with a female 4-pin round connector, ensuring a secure and proper electrical connection. The threaded mounting type with an 18 mm diameter and 22 mm hex size allows for straightforward installation using standard tools. The overall length of the sensor is approximately 59.8 inches, with a wiring harness length of 56.1 inches, providing ample reach for installation in the specified BMW models.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for efficient engine operation
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring proper emissions control
• Reduces harmful exhaust emissions by maintaining optimal combustion
• Prevents rough idling and engine performance issues caused by faulty sensors

Installation Notes and Tips

When installing the Bosch 13052 oxygen sensor, ensure the engine is cool to avoid burns. Use a 22 mm oxygen sensor socket or wrench for removal and installation. Verify the sensor’s wiring harness is properly connected to the vehicle’s female 4-pin connector to maintain electrical integrity. Avoid over-tightening the threaded sensor to prevent damage to the mounting threads. This sensor is designed for specific BMW models, so confirm compatibility before installation.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Actual OE Oxygen Sensor line is tested to comply with original equipment specifications. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control components. Refer to Bosch or your parts provider for exact warranty terms related to part number 13052.