Bosch 17206 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Audi and Volkswagen Vehicles

The Bosch Actual OE Oxygen Sensor 17206 is designed to provide accurate air-fuel mixture readings for select Audi and Volkswagen models. This heated, wide-band oxygen sensor ensures optimal engine performance and emissions control for vehicles like the Audi A3 and Volkswagen Golf.

• Heated wide-band oxygen sensor for precise air-fuel ratio monitoring
• Specific fit for Audi A3, Volkswagen Golf, Golf Alltrack, Golf SportWagen, GTI, and Jetta
• 24.6-inch wiring harness with 5 wires and blade terminal type
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing with oblong male connector
• Standard replacement grade for reliable performance

About the Bosch Actual OE Oxygen Sensor Product Line

The Actual OE Oxygen Sensor line from Bosch is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This ensures compatibility and performance consistency for emission control systems in Audi and Volkswagen vehicles. The 17206 part number belongs to this line, offering a balance of quality and fitment accuracy.

Product Details and Specifications

This Bosch oxygen sensor features a heated design to reduce warm-up time and improve sensor response. The wide-band sensor type allows for precise measurement of oxygen levels in the exhaust, which is critical for engine management systems. The sensor includes a 24.6-inch wiring harness with five wires terminated in blade-style terminals, connected via an oblong male connector. The sensor mounts using an 18 mm threaded fitting and requires a 22 mm hex tool for installation. The metal housing provides durability under high-temperature conditions, and the overall length from sealing surface to connector end is approximately 26.8 inches.

Compatible Vehicles and Common Applications

• Replacement oxygen sensor for Audi A3 models requiring part number 17206
• Suitable for Volkswagen Golf, Golf Alltrack, Golf SportWagen, GTI, and Jetta models
• Helps resolve issues such as poor fuel economy, rough idling, and failed emissions tests
• Addresses check engine light triggers related to oxygen sensor faults
• Supports proper engine performance and reduced exhaust emissions

Installation Notes and Tips

Ensure the vehicle is cool before removing the old oxygen sensor to avoid burns. Use a 22 mm oxygen sensor socket or wrench for removal and installation. Verify the wiring harness length and connector type match the vehicle’s factory sensor to ensure proper fitment. Do not overtighten the sensor to prevent thread damage. This sensor does not include a mounting bracket, so use the existing mounting location on the vehicle.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards and provide reliable operation over the sensor’s service life. The Actual OE Oxygen Sensor 17206 is a standard replacement grade part designed to meet or exceed OEM specifications. Warranty coverage details should be confirmed with the original Bosch documentation or authorized distributors.