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P0299 on the 2012 Audi A6

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.

Bulletins for this model year that name P0299
1313203124542022-08-01. Service bulletin. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 (Negative Pressure Deviation).
1312203124532022-08-01. Service bulletin. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 (Negative Pressure Deviation).
A211313 2031245-2017-11-17. Service bulletin. Supersedes Technical Service Bulletin Group 21 number 13-12 dated April 1, 2013. MIL on, DTC P0299 (Negative Pressure Deviation) is stored. Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 (Negative Pressure Deviation).
A211312 2031245-2017-11-17. Service bulletin. Supersedes Technical Service Bulletin Group 21 number 13-11 dated March 6, 2013. MIL on, DTC P0299 (Negative Pressure Deviation) is stored. Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 (Negative Pressure Deviation).

4 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.