Bosch 17361 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Bosch Wideband OE Oxygen Sensor

Bosch 17361 is an Actual OE Oxygen Sensor built as a wideband air/fuel sensor for precise mixture feedback to the ECU. It is a specific-fit, heated replacement with a 5-wire harness and threaded mounting for direct service on select Audi and Volkswagen applications.

Key Features

• Wideband A/F oxygen sensor for continuous air-fuel ratio measurement across the full lambda range
• Heated design for faster sensor operation and stable readings during cold starts
• Specific-fit replacement with included wiring harness
• 6-terminal, blade-style connection with oblong male connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing with robust ceramic sensor construction
• Overall length: 67.7 in; sealing surface to connector end: 66.5 in

Product Details

Bosch 17361 is part of the Bosch Actual OE Oxygen Sensor line, which focuses on OE-style replacement sensors developed from Bosch’s long history in engine management. This wideband sensor provides detailed air-fuel ratio data that helps the ECU maintain accurate fuel control under changing load and temperature conditions. It is a direct replacement choice for drivers searching for a Bosch 17361 oxygen sensor for Audi Q7, Volkswagen Touareg, or other listed applications, including upstream service positions.

This part cross-references 1K0998262M for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn upstream sensor
• Rough idle or hesitation caused by inaccurate mixture feedback
• Reduced fuel economy from poor fuel-trim control
• Emissions test failures tied to sensor response issues

Installation Notes

• Fits 2007-2010 Audi Q7, upstream
• Fits 2007-2009 Volkswagen Touareg, upstream
• Fits 2007 Audi A8 Quattro, upstream, cylinder(s) 10 to 12; to chassis # 4E-7-017 000
• Fits 2007 Audi A8 Quattro, upstream, cylinder(s) 7-9; to chassis # 4E-7-017 000
• Fits 2005-2006 Audi A8 Quattro, upstream, cylinder(s) 7-9
• Fits 2005-2006 Audi A8 Quattro, upstream, cylinder(s) 10 to 12
• Fits 2002-2005 Volkswagen Golf, upstream
• Fits 2002-2005 Volkswagen Jetta, upstream
• Fits 2002-2004 Volkswagen Passat, upstream right
• Fits 2004 Volkswagen R32, upstream left
• Verify connector shape, wire count, and sensor position before installation
• Use the vehicle-specific application notes to confirm cylinder bank and chassis breakpoints on Audi A8 Quattro models

Quality Assurance

Bosch supplies OE-developed oxygen sensors to the aftermarket, using wideband technology, fast light-off characteristics, and heater control tuned for reliable operation in demanding thermal conditions. Bosch 17361 is built to OE-level specifications for the listed Audi and Volkswagen applications.