Bosch 16978 Oxygen Sensor

Reliable Oxygen Sensor for Audi and Volkswagen Vehicles

The Bosch Actual OE Oxygen Sensor 16978 is designed to provide precise air-fuel mixture readings for select Audi and Volkswagen models. This narrow-band heated oxygen sensor ensures accurate emissions control and engine performance by maintaining optimal combustion efficiency.

• Specific fit for Audi and Volkswagen models including A4, A6, Golf, Jetta, Passat, and more
• Heated narrow-band oxygen sensor for faster response times
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 65.9-inch wiring harness with 4 male blade terminals and an oblong male connector
• Durable metal housing finished in steel for long-lasting performance
• Standard replacement grade for reliable emissions control

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line focuses on delivering direct-fit replacement sensors that meet original equipment specifications. This ensures compatibility and performance consistency for vehicles requiring precise emissions monitoring. The 16978 sensor is part of this line, offering a heated narrow-band design tailored for specific Audi and Volkswagen applications.

Product Details and Specifications

This oxygen sensor features a 4-wire configuration with male blade terminals and an oblong male connector, facilitating a secure electrical connection. The sensor’s overall length is approximately 69.3 inches, with a wiring harness length of 65.9 inches, providing ample reach for installation. The threaded mounting type uses an 18 mm diameter thread, secured with a 22 mm hex size tool. Constructed with a metal housing and steel finish, the sensor is built to withstand harsh engine environments. The heated element accelerates sensor response, improving fuel management and emissions control.

Compatible Vehicles and Common Applications

• Designed for Audi models: A4, A4 Quattro, A6, A6 Quattro, A8 Quattro, Allroad Quattro, S4, TT, TT Quattro
• Compatible with Volkswagen models: Beetle, Cabrio, EuroVan, Golf, Jetta, Passat, Phaeton, Touareg
• Used to address issues such as poor fuel economy, rough idling, increased emissions, check engine light related to oxygen sensor faults, and failed emissions tests

Installation Notes and Tips

Ensure the engine 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 connector type and wiring harness length match your vehicle’s requirements. The sensor’s threaded design allows for straightforward installation without additional mounting brackets. Confirm the sensor orientation and connector alignment to prevent wiring damage.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Actual OE Oxygen Sensor 16978 is a standard replacement part designed to meet or exceed OEM specifications. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control components. Refer to Bosch documentation or your parts provider for exact warranty terms.