Denso 234-4808 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Reliable Oxygen Sensor for Audi, Porsche, and Volkswagen Models

The Denso OE Style 234-4808 oxygen sensor is designed specifically for select Audi, Porsche, and Volkswagen vehicles. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the engine management system.

• Heated oxygen sensor type for faster response times
• Specific fit for Audi A4, A4 Quattro, A8 Quattro, Porsche Cayenne, Volkswagen Beetle, Golf, Golf City, Jetta, Jetta City, R32, and TT Quattro
• 28.74-inch wiring harness length for convenient installation
• Four-wire design with male connector for secure electrical connection
• Threaded mounting type with 0.708-inch thread diameter for direct replacement

About the Denso OE Style Product Line

The Denso OE Style line focuses on delivering oxygen sensors that meet original equipment specifications. The 234-4808 sensor is engineered to match the fit, form, and function of the factory-installed part, ensuring compatibility and reliable performance in emission control systems of Audi, Porsche, and Volkswagen vehicles.

Detailed Product Description

This Denso oxygen sensor features a heated sensor element that accelerates the sensor’s warm-up time, improving emissions control during cold starts. The specific fitment ensures proper installation without modification, compatible with models such as the Audi A4 Quattro and Volkswagen Golf City. The four-wire configuration includes two wires for the heater circuit and two for the sensor signal, providing accurate oxygen level readings. The 28.74-inch wiring harness length offers flexibility during installation, while the male connector and threaded mounting type with a 0.708-inch diameter allow for a secure and direct fit.

Common Issues Addressed by This Oxygen Sensor

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine performance problems such as rough idling or hesitation
• Heater circuit malfunctions causing delayed sensor response

Installation Notes and Tips

• Ensure vehicle compatibility with the specific fitment list before installation
• Disconnect the battery before replacing the sensor to avoid electrical issues
• Use appropriate tools to remove the old sensor and install the new threaded sensor securely
• Check wiring harness length and connector type to confirm proper fit
• After installation, clear any diagnostic trouble codes and verify sensor operation

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. The 234-4808 part number undergoes rigorous testing to ensure durability and reliable performance in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.