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Service bulletins for the 2011 Porsche Panamera

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.

485 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
122-V5F8X-072019-07-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Information on new model designation logos which can be purchased and applied to the rear exhaust area of a vehicle, displaying the model designation on the outside of the vehicle.
122-A6Z3V-032018-03-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). Subject: Intake valves and intake ports Information: Carboned-up valves in the engine can be reworked and cleaned using cleaning equipment. If there is a complaint about knocking combustion, e.g. during acceleration at high load, the condition of the intake valves and portsmust be checked before doing any other work. If the check shows that the intake valves and intake ports have carbon deposits and are dirty, they must be cleaned using the VAS 294 011 - cleaning unit. There should be no need to replace the components. Date of Introduction: The VAS 294 011 - cleaning unit can be ordered immediately for dealers. Remedial Action: The VAS 294 011 - cleaning unit is used for cleaning carboned-up intake valves and intake ports. Compressed air is used to spray a special granulatemixture into the intake port,where it loosens and removes carbon build-up. The dirty granulate is extracted during spraying using an industrial vacuum cleaner.
122-N2C3W-022018-02-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Subject: Fastening screws for camshaft controllers Information: Due to influencing factors during the camshaft controller assembly process, the threaded connections can become strained to such an extent that the function of the camshaft controller cannot be guaranteed over the service life of the vehicle.
122-L4X2R-102017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. There is a possibility that the function of the change-over valve for the sport exhaust system can fail as a result of water leaking in and causing corrosion. If this happens, the mode that was activated last will remain active. It will no longer be possible to switch between Sport and Normal mode in this case.In the event of a customer complaint or spare parts requirements for the change-over valve, the change-over valve and several individual components must be replaced - until such a time as the change-over valve becomes available as a repair kit,

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.