Bosch 17197 Oxygen Sensor - Downstream or Upstream

Wideband OE Oxygen Sensor

Bosch 17197 is a specific-fit wideband oxygen sensor built for precise air-fuel ratio monitoring. It uses a heated design, threaded mounting, and a 5-wire layout to deliver accurate feedback to the engine control unit across changing load conditions.

Key Features

• Wideband A/F sensor for continuous air-fuel ratio measurement
• Heated design for faster sensor activity and stable operation
• Specific-fit replacement with threaded mounting
• 6-terminal blade connection with oblong male connector
• Metal housing with robust ceramic sensor construction
• Bosch Actual OE Oxygen Sensor line reflects OE development experience

Detailed Description

Bosch 17197 is part of the Actual OE Oxygen Sensor line, which draws on Bosch wideband sensor development and OE engineering. This sensor provides detailed lambda-range feedback for modern engine management, helping the ECU maintain accurate mixture control for fuel efficiency, performance, and lower emissions. The wideband design, optimized heater control, and fast light-off characteristics support reliable response during rapid throttle changes and thermal cycling. This Bosch oxygen sensor is used in applications such as Volkswagen CC, Volkswagen GTI, and Audi A3 fitments, with specific upstream and downstream coverage depending on the vehicle.

This part cross-references Bosch 17197 for the same application.

What It Is Used For

• Incorrect air-fuel ratio readings from a worn sensor
• Check engine light concerns related to oxygen sensor performance
• Reduced fuel economy caused by inaccurate mixture feedback
• Rough engine operation tied to poor sensor response
• Emissions issues from degraded wideband sensor output

Installation Notes and Tips

Fits 2009-2017 Volkswagen CC, upstream; 2014-2016 Kia Forte, downstream; 2014-2016 Kia Forte Koup, downstream; 2014-2016 Kia Forte5, downstream; 2012-2016 Kia Soul, upstream; 2007-2016 Volkswagen Eos, upstream; 2009-2015 Audi TT Quattro, upstream; 2009-2015 Audi TTS Quattro, upstream; 2011-2014 Hyundai Elantra, upstream; 2013-2014 Hyundai Elantra Coupe, upstream; 2013-2014 Hyundai Elantra GT, upstream; 2006-2014 Volkswagen GTI, upstream; 2006-2013 Audi A3, upstream; 2009-2013 Audi A3 Quattro, upstream; 2012-2013 Volkswagen Golf R, upstream; 2006-2010 Volkswagen Jetta, upstream; 2006-2010 Volkswagen Passat, upstream; 2009-2010 Volkswagen Passat CC, upstream; 2008-2009 Audi TT, upstream. Verify connector shape, thread size, and sensor position before installation. Use the correct oxygen sensor socket and avoid contaminating the sensing element during handling.

Quality Assurance

Bosch has more than five decades of OE development experience and supplies oxygen sensors built to OE-proven standards. The Actual OE Oxygen Sensor line is engineered for accurate measurement, durable construction, and dependable operation in modern emission control systems.