P0299 on the 2012 Porsche Panamera
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 122-B3K4R-05 | 2017-10-15. Service bulletin. Issue: Fault P029900-Turbo/Super Charger Underboost stored in the DME. Information: A vacuum line at the vacuum reservoir in the left front wheel well was not connected properly during production and may become disconnected (see the picture below). The repair is to simply reconnect the line and make sure it is not under tension. |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.