Denso 234-4480 Oxygen Sensor - Downstream

Overview of the Denso OE Style Oxygen Sensor 234-4480

The Denso OE Style Oxygen Sensor 234-4480 is designed specifically for select BMW models, including the 335i xDrive and X1. This 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.

• Heated sensor type for faster response times
• Specific fit for BMW 335i xDrive and X1 models
• Threaded mounting type with 0.708-inch thread diameter
• Four-wire design with female connector for reliable electrical connection
• Wiring harness length of 35.55 inches for proper installation

Detailed Features and Specifications

The Denso OE Style line focuses on delivering parts that meet original equipment specifications, ensuring compatibility and performance consistent with factory-installed components. The 234-4480 oxygen sensor is a heated sensor, which means it includes an internal heating element to bring the sensor up to operating temperature quickly. This feature improves sensor responsiveness and reduces emissions during cold starts.

With a specific fitment for BMW 335i xDrive and X1 models, this oxygen sensor features a threaded mounting type with a 0.708-inch thread diameter, allowing for secure installation in the exhaust system. The sensor includes a four-wire configuration and a female connector, designed to match the original wiring harness for seamless integration. The wiring harness length of 35.55 inches provides adequate reach for proper routing and connection.

Applications and Common Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensor readings
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate sensor data
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Denso OE Style 234-4480 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector gender matches the vehicle’s wiring harness for a secure connection. Properly route the wiring harness to prevent contact with hot exhaust components or moving parts.

Quality Assurance and Warranty

Denso’s OE Style product line is engineered to meet or exceed original equipment standards, providing reliable performance and durability. This oxygen sensor undergoes rigorous testing to ensure accurate sensor output and long service life. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed warranties to protect against defects in materials and workmanship.