Bosch 15003 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Mercedes-Benz C36 AMG, C230, and C280

The Bosch Actual OE Oxygen Sensor 15003 is designed specifically for select Mercedes-Benz models, including the C36 AMG, C230, and C280. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and emissions control.

• Specific fit for Mercedes-Benz C36 AMG, C230, and C280 models
• Heated narrow-band oxygen sensor for precise emissions monitoring
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 20.5-inch wiring harness with 4-pin female connectors
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade for 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 ensures compatibility and performance consistency for vehicles like the Mercedes-Benz C36 AMG, C230, and C280. The 15003 part number represents a standard replacement sensor with a heated narrow-band design, suitable for maintaining proper emissions control and engine efficiency.

Detailed Product Description

This Bosch oxygen sensor features a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size for easy installation. The sensor is equipped with a 20.5-inch wiring harness and a 4-pin female connector, designed specifically for the wiring configuration of the compatible Mercedes-Benz models. The sensor’s metal housing and steel finish provide durability under high-temperature conditions. As a heated narrow-band sensor, it quickly reaches operating temperature to deliver accurate oxygen level readings, which are critical for the engine control unit to adjust fuel injection and reduce emissions.

Common Applications and Issues Addressed

• Helps resolve poor fuel economy caused by incorrect air-fuel mixture
• Reduces engine hesitation and rough idling related to faulty oxygen sensors
• Prevents increased emissions and failed emissions tests
• Addresses check engine light triggers related to oxygen sensor faults
• Supports proper catalytic converter function by providing accurate sensor data

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use a 22 mm oxygen sensor socket for proper removal and installation
• Do not overtighten; torque to manufacturer specifications to avoid damage
• Verify connector compatibility with the 4-pin female connector included
• Inspect wiring harness for damage before installation

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 15003 undergoes rigorous testing to ensure reliable performance and durability. While specific warranty details may vary, Bosch typically offers a limited warranty covering defects in materials and workmanship for this product line.