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Service bulletin 01130820335612

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 id10221965
Published by NHTSA2022-09-26
Manufacturer's number01130820335612
Manufacturer's date2013-06-21
NHTSA componentELECTRICAL SYSTEM:IGNITION; ELECTRICAL SYSTEM

NHTSA's summary

Some of the Bosch ignition coils installed in the affected vehicles may fail prematurely.

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 A32010, 2011
AUDI A42010, 2011
AUDI A52010, 2011
AUDI A5 CABRIOLET2010 to 2011
AUDI Q52011
AUDI TT2010, 2011

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
28G6UPDATE2023-10-10. Service bulletin. Ignition Coils (NVLW)
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
011395203356112022-10-31. Service bulletin. Engine shakes. Some of the Bosch ignition coils installed in the affected vehicles may fail prematurely.
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.
28 13 21 20175552022-05-31. Service bulletin. Key does not stay or engage in ignition lock
37 14 34 20289852022-05-02. Service bulletin. Transmission warning may appear in instrument cluster. After ignition cycle, the warning message is no longer present. The fault occurs with ATF temperature below 60o C. Check for this temperature range in the extended environmental conditions of the diagnosis protocol. This TSB only applies if the ATF level is correct and there are no leaks.
37 14 23 20284722022-05-02. Service bulletin. The ignition key cannot be removed even though the gear shifter is in Park (P). The vehicle is mechanically in the Park position, but this is not recognized electronically. The gear shifter cannot be moved from the Park position. On vehicles with Audi advanced key, the vehicle cannot be locked by remote control after the engine has been switched off.The Park position of the gear shifter is sporadically not recognized, which causes the ignition key to not be cleared and prevents the vehicle from being locked.