Denso 234-4485 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Reliable Oxygen Sensor for Audi, Porsche, and Volkswagen Models

The Denso OE Style Oxygen Sensor 234-4485 is designed to provide precise emission control for select Audi, Porsche, and Volkswagen vehicles. Engineered as a heated, threaded sensor with a specific fit, it ensures accurate air-fuel mixture readings to maintain optimal engine performance.

• Heated oxygen sensor for faster response times
• Specific fit for Audi A6 Quattro, A8 Quattro, Porsche Cayenne, and Volkswagen Passat among others
• Threaded mounting type with 0.708-inch thread diameter
• 28.94-inch wiring harness length with 4 wires and male connector
• Part number 234-4485 for precise identification and compatibility

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering sensors that match original equipment specifications for fit, form, and function. This ensures that the 234-4485 oxygen sensor integrates seamlessly with the vehicle’s emission system, maintaining factory performance standards and compliance with emission regulations.

Detailed Product Description

This Denso oxygen sensor features a heated design that accelerates sensor activation, reducing warm-up time and improving emission control efficiency. The 28.94-inch wiring harness with four wires and a male connector allows for straightforward installation and reliable electrical connection. Its threaded mounting type with a 0.708-inch diameter ensures a secure fit in the exhaust system. This sensor is specifically designed for models including Audi A6 Quattro, A8 Quattro, Porsche Cayenne, Volkswagen Passat, Passat CC, Jetta, and others, providing precise air-fuel ratio data to the engine control unit.

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor degradation

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid burns. Use the correct tools to remove the old sensor and install the new one with the specified 0.708-inch thread diameter. Verify the wiring harness length of 28.94 inches is sufficient for your vehicle’s routing. Confirm the male connector matches the vehicle’s wiring harness to ensure proper electrical connection. Follow manufacturer torque specifications to avoid damage.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. The 234-4485 part number is backed by Denso’s quality control processes. Please refer to Denso’s warranty policy for specific coverage details.