Replacing Audi oxygen sensor

March 26, 2024
This bulletin applies to 2013-2018 Audi A8, S6, S7, S8, RS 6, and 2014-2018 RS 7 vehicles equipped with a 4.0L engine.

This bulletin applies to 2013-2018 Audi A8, S6, S7, S8, RS 6, and 2014-2018 RS 7 vehicles equipped with a 4.0L engine.

The MIL may be on accompanied by DTC P209600 (post catalyst fuel trim system bank 1 too lean) and/or P209800 (post catalyst fuel trim system bank 2 too lean).

Any other DTCs regarding the oxygen sensors before the catalyst that may have been logged before or after the above DTCs should be ignored.

After performing a leakage test of the exhaust system, as part of the GFF test, the Guided Fault Finding recommends the replacement of the oxygen sensor before the catalyst...do not replace the front oxygen sensor. The internal reference duct of the oxygen sensor after the catalyst has been contaminated.

Replace the oxygen sensor after the catalyst on the affected bank only.

Ensure that the correct sensor per the GFF DTC fault memory is installed. Reference ElsaPro for the locations.

P/N                            OXYGEN SENSOR

4H0906262L...............O2 sensor after catalyst G130 (Bank 1)

4H0906262M.............O2 sensor after catalyst G131 (Bank 2)

Sponsored Recommendations

Snap-on Training: ADAS Level 2 - Component Testing

The second video for Snap-on's comprehensive overview of Advanced Driver Assistance Systems (ADAS), covering the fundamental concepts and functionalities essential for automotive...

Snap-on Training: Intro to ADAS

Snap-on's training video provides a comprehensive overview of Advanced Driver Assistance Systems (ADAS), covering the fundamental concepts and functionalities essential for automotive...

Snap-on Training: Guided Component Tests Level 2

The second video for Snap-on's comprehensive overview of Guided Component Tests, covering the fundamental concepts essential for diagnostic procedures.

Snap-on Training: Data Bus Testing and Diagnosis Part 1

Learn the basics of vehicle data buses and their diagnosis with Snap-on's Jason Gabrenas.

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!