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Service bulletin 122-G4Y8K-10

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10084203
Published by NHTSA2016-11-14
Manufacturer's number122-G4Y8K-10
Manufacturer's date2016-09-16
NHTSA componentFUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM

NHTSA's summary

"THERE IS A POSSIBILITY THAT A LEAK CAN OCCUR AT THE FUEL RAILS IN THE FUEL INJECTION SYSTEM ON THE AFFECTED VEHICLES. AS A RESULT, A SMALL AMOUNT OF FUEL CAN LEAK OUT. THE CUSTOMER MAY GET A SMELL OF FUEL IN THESE RARE CASES. REPLACE BOTH FUEL RAILS AND REPLACE THE SUPPORT PIECE AND THE SUPPORT RING AND SEALING RING ON THE FUEL INJECTORS. ALSO REPLACE THE COOLANT REGULATOR."

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Fuel system

Vehicles listed
PORSCHE CAYENNE S HYBRID2011, 2012 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20150162015-01-16. Fuel System

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
No. D7852026-06-05. Service bulletin. Parts information for parts withdrawal involving 9J1827447B, PAA971221B, and 95B201060AA. The lock, the fuel tank attachments, and the module connector. The vehicles affected are ones that use the part number(s) mentioned.
nO. d7662026-03-02. Service bulletin. Parts information for parts withdrawal involving the fuel filler flap and the charge cable for mains socket. Part numbers 976809857E and 7PP971678GS
No. D7642026-03-02. Service bulletin. Parts information for parts withdrawal involving the multi-purpose additive for gasoline. Part number is 00004320902. The vehicles affected are ones that use part number mentioned.
No. D7562026-02-06. Service bulletin. Parts information for parts withdrawal involving the - Diagnosis Pump for Fuel System 958906243B and 958906243A. Vehicles affected are ones that use either of the part numbers mentioned.
No. 06-252025-03-06. Service bulletin. Manufacturer's Certificate - Overview of Approved Porsche C40 Engine Oils (06/25)
No. 05-252025-03-06. Service bulletin. Manufacturer's Certificate - Overview of Approved Porsche C30 Engine Oils (05/25)
No. D6822024-07-02. Service bulletin. Parts information for parts withdrawal involving the sender for fuel gauge.
No. D6152022-10-05. Service bulletin. Parts information for parts withdrawal involving the fuel filler flap
122-P5G7U-072018-07-30. Service bulletin. Oil in the wiring harness. If oil is found in the engine wiring harness during a repair, the wiring harness and all the affected components (including the oil pump control valve) must be replaced.
122-A5L9U-042018-04-23. Service bulletin. 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,