Porsche Cayenne 2011–2018 — technical service bulletin
Bulletin 122-A5L9U-04 · NHTSA communication 10134861 · issued Mar 13, 2018
Technical service bulletin
communication type
Fuel System, Gasoline
component
2011–2018
model years
8
vehicle entries
Official summary
Information: Analysis has shown that traces of oil found in the hydraulic pump or tandempump area are not always caused by a Pentosin leak in the pump. In the event of a complaint about traces of oil in the hydraulic pump or tandem pump area,
Vehicles covered
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.