Bosch 17078 Oxygen Sensor - Upstream

Overview of Bosch Actual OE Oxygen Sensor 17078

The Bosch Actual OE Oxygen Sensor 17078 is designed specifically for select Audi models, including the A8 Quattro, RS7, S6, S7, and S8. This wide-band oxygen sensor features a heated design and a 5-wire configuration to ensure accurate emissions control and optimal engine performance.

• Heated wide-band oxygen sensor for precise air-fuel ratio monitoring
• Specific fit for Audi A8 Quattro, RS7, S6, S7, and S8 models
• 5-wire design with blade terminal type and oblong male connector
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes wiring harness with 20.1-inch length for reliable connection
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade for dependable emissions control

Detailed Product Description

The Bosch Actual OE Oxygen Sensor 17078 is engineered to meet the exact specifications of the original equipment for compatible Audi vehicles. This sensor uses a heated wide-band design, which allows it to quickly reach operating temperature and provide accurate oxygen level readings across a broad range of air-fuel mixtures. The 5-wire configuration and blade terminal type ensure secure electrical connections, while the oblong male connector shape facilitates proper fitment. The sensor’s metal housing and steel finish contribute to its durability under harsh engine conditions. With a threaded mounting type featuring an 18 mm thread diameter and a 22 mm hex size, installation aligns with factory standards. The included wiring harness, measuring 20.1 inches, supports straightforward integration into the vehicle’s emission control system.

Compatible Vehicles and Applications

This oxygen sensor is compatible with the following Audi models:

• Audi A8 Quattro
• Audi RS7
• Audi S6
• Audi S7
• Audi S8

It is designed to replace the original oxygen sensor to maintain proper emissions control and engine efficiency in these vehicles.

Common Issues Addressed by Bosch Oxygen Sensor 17078

• 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 accuracy

Installation Notes and Tips

When installing the Bosch Actual OE Oxygen Sensor 17078, ensure the vehicle is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness length and connector type match the vehicle’s factory setup to prevent connection issues. Do not overtighten the sensor; follow manufacturer torque specifications to avoid damage. Since this sensor is a specific fit for select Audi models, confirm compatibility before installation.

Quality Assurance and Warranty

Bosch’s Actual OE Oxygen Sensor line is designed to meet original equipment standards, providing reliable performance and durability. This sensor is a standard replacement grade part, ensuring it meets the necessary specifications for emissions control. While specific warranty details are not provided here, Bosch typically offers limited warranties on their OE replacement parts to cover defects in materials and workmanship.