Porsche Cayenne 2017–2023 — technical service bulletin
Bulletin No. 2304 · NHTSA communication 10232447 · issued Feb 27, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2023
model years
17
vehicle entries
Official summary
Advanced technical information: E3.I/G2 V8 â Oil/Air Separator Membrane Failure
Vehicles covered
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2019 Porsche Cayenne S
- 2020 Porsche Cayenne S
- 2021 Porsche Cayenne S
- 2022 Porsche Cayenne S
- 2023 Porsche Cayenne S
- 2017 Porsche Panamera
- 2018 Porsche Panamera
- 2019 Porsche Panamera
- 2020 Porsche Panamera
- 2021 Porsche Panamera
- 2022 Porsche Panamera
- 2023 Porsche Panamera
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.