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Service bulletin A211418 2031245-

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 id10122417
Published by NHTSA2017-11-08
Manufacturer's numberA211418 2031245-
Manufacturer's date2014-06-06
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Supersedes Technical Service Bulletin Group 21 number 13-16 dated July 9, 2013. The MIL is on. DTC P029900 (Negative Pressure Deviation) is stored as a static fault in the engine control module (ECM), J623 (address word 01). 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 P029900 (Negative Pressure Deviation).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Trouble codes named

P0299

Vehicles listed
AUDI A42009, 2010
AUDI A4 AVANT2011 to 2012
AUDI A52009, 2010, 2011, 2012
AUDI A5 CABRIOLET2009 to 2012
AUDI Q52011, 2012

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

Other bulletins for the same vehicles and component
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TSB_2060750_52026-02-06. Service bulletin. This bulletin provides information regarding UV leak additive for finding oil leaks.
TSB_2075530_22025-04-04. Service bulletin. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
A0124482014753_132025-01-07. Service bulletin. This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000.
A1524532075530_12024-11-06. Service bulletin. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
A2424632074810_22024-10-28. Service bulletin. This bulletin provides information when ther is an Engine: start/stop system fault shown and start/stop system not is working; mileage below 50 km/32 miles.
AWA 24-012024-03-06. Service bulletin. This Document informs dealers on the new oil consumption & piston fracture warranty extension for 2012 A4, A5, A6, Q5 & TT / 2013 A4, A5, A6, Q5 & TT / 2014 A4, A5, A6, Q5 & TT / 2016 A3 & TT / 2017 A3 & TT vehicles
401336203535812024-03-04. Service bulletin. Rattling/engine noises in passenger compartment