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Service bulletin A721309 2035357-

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 id10121358
Published by NHTSA2017-10-31
Manufacturer's numberA721309 2035357-
Manufacturer's date2013-09-25
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

Seat memory function does not work. DTCs are stored. In the event of a voltage fluctuation in the vehicle power system, the software of the seat adjustment module fails.

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

Electrical system, Software

Vehicles listed
AUDI A4 ALLROAD2013, 2014
AUDI A4 AVANT2012
AUDI A52011, 2012, 2013, 2014
AUDI A62011, 2012, 2013, 2014
AUDI A72011
AUDI A72012, 2013, 2014
AUDI A82011, 2012, 2013, 2014
AUDI Q52011, 2012, 2013, 2014
AUDI Q72011, 2012, 2013, 2014

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

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A0023822047812_72024-01-04. Service bulletin. This bulletin provides information on how to set up and use the SD Creator for obtaining vehicle software updates via the Mirror Server.
A0123972072121_12023-12-06. Service bulletin. This bulletin provides information for when the MIL/EPC light is illuminated, DTC P042000 or P043000, Catalyst system, bank 1 or 2 efficiency below thresh hold.
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011456203290022023-01-03. Service bulletin. The fault listed can occur under certain driving conditions. It is caused by an incorrect software setting. Some driving scenarios (such as extended idling or heavy stop-and-go traffic) can cause a slight misinterpretation of the data, which causes the MIL to illuminate.