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Service bulletin 28G6UPDATE

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 id10243834
Published by NHTSA2023-10-10
Manufacturer's number28G6UPDATE
Manufacturer's date2013-12-02
NHTSA componentELECTRICAL SYSTEM:IGNITION

NHTSA's summary

Ignition Coils (NVLW)

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, Ignition

Vehicles listed
AUDI A42010, 2011, 2012, 2013
AUDI A52010, 2011, 2012, 2013
AUDI A5 CABRIOLET2010 to 2013
AUDI A62013
AUDI Q52011, 2012, 2013

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
Update28G62024-02-12. Service bulletin. Ignition Coils
A5723082027406_52023-07-10. Service bulletin. This bulletin provides information regarding the Audi advanced key.
A9623822056019_22023-03-06. Service bulletin. This bulletin provides instructions for when the anti-theft alarm has gone off for no reason, or did not go off at all. No DTCs are stored.
Edition832023-02-06. Service bulletin. 97 no start
011451203058082022-10-31. Service bulletin. The remote key being used is transmitting incomplete immobilizer information to the vehicle, resulting in the condition.
011397203058062022-10-31. Service bulletin. The customer complains that the vehicle sporadically cannot be started. The remote key being used is transmitting incomplete immobilizer information to the vehicle; resulting in the condition.
011395203356112022-10-31. Service bulletin. Engine shakes. Some of the Bosch ignition coils installed in the affected vehicles may fail prematurely.
011394203058052022-10-31. Service bulletin. The remote key being used is transmitting incomplete immobilizer information to the vehicle; resulting in the condition.
011386203363012022-10-31. Service bulletin. Because there are a number of different misfire faults (unrelated to ignition coil operation) that could cause the MIL to illuminate, proper Guided Fault Finding (GFF) misfire diagnosis must be followed before any ignition coils are replaced.
011451203058082022-09-26. Service bulletin. The remote key being used is transmitting incomplete immobilizer information to the vehicle, resulting in the condition.