# Service bulletin Customer Letter

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.

- Type: Service bulletin
- NHTSA id: 10124616
- Published by NHTSA: 2017\-12\-05
- Manufacturer's number: Customer Letter
- Manufacturer's date: 2013\-08\-13
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Audi has determined that, under certain driving conditions, carbon buildup can occur in the engine cylinder head secondary air ports. Due to the presence of specific fault codes caused by this carbon buildup, the Malfunction Indicator Lamp \(MIL\) on the instrument cluster may illuminate. The MIL is part of your on\-board diagnostic system. Please refer to your owner's manual for additional information about the MIL. In some locales, an illuminated Malfunction Indicator Lamp could cause your vehicle to fail an IM emissions inspection, and your vehicle registration application could be denied. Please be aware that other conditions \(unrelated to the issue described in this letter\) may cause the MIL in your vehicle to illuminate. Customers should be prepared to cover all diagnosis and repair costs for these other, unrelated conditions.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10124616-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10124616-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2009 AUDI A3
- 2009 AUDI A4
- 2011 to 2012 AUDI A4 AVANT
- 2009 AUDI A4 CABRIOLET
- 2009 to 2010 AUDI A5
- 2013 AUDI A5
- 2011 to 2013 AUDI A5 CABRIOLET
- 2009 to 2013 AUDI A6
- 2012 to 2013 AUDI A7
- 2013 AUDI A8
- 2009 to 2013 AUDI Q5
- 2009 to 2013 AUDI Q7
- 2010 to 2012 AUDI S4
- 2009 to 2010 AUDI S5
- 2013 AUDI S5
- 2010 to 2013 AUDI S5 CABRIOLET
- 2009 to 2011 AUDI S6
- 2013 AUDI S6
- 2013 AUDI S7
- 2013 AUDI S8
- 2009 AUDI TT

## Recalls for the same vehicles and component

- [2022133](/recalls/tc/2022133.md), 2022-03-23: Engine
- [22V178000](/recalls/nhtsa/22V178000.md), 2022-03-23: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
- [18V229000](/recalls/nhtsa/18V229000.md), 2018-04-11: ENGINE AND ENGINE COOLING:COOLING SYSTEM
- [2017002](/recalls/tc/2017002.md), 2017-01-04: Engine
- [17V002000](/recalls/nhtsa/17V002000.md), 2017-01-03: ENGINE AND ENGINE COOLING:COOLING SYSTEM
- [16V619000](/recalls/nhtsa/16V619000.md), 2016-08-24: ENGINE AND ENGINE COOLING:ENGINE
- [14V516000](/recalls/nhtsa/14V516000.md), 2014-08-26: ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS

## Other bulletins for the same vehicles and component

- [SM 01\-2026](/bulletins/11035797.md), 2026-08-05, Other: ENGINE. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
- [TSB\_2082323\_1](/bulletins/11034728.md), 2026-07-07, Service bulletin: ENGINE. This bulletin provides informaiton when the engine is not running smoothly, misfiring.
- [TSB\_2021205\_10](/bulletins/11029367.md), 2026-03-03, Service bulletin: ENGINE. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
- [TSB\_2060750\_5](/bulletins/11028398.md), 2026-02-06, Service bulletin: ENGINE. This bulletin provides information regarding UV leak additive for finding oil leaks.
- [TSB\_2075530\_2](/bulletins/11016532.md), 2025-04-04, Service bulletin: ENGINE. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
- [A0124482014753\_13](/bulletins/11012476.md), 2025-01-07, Service bulletin: ENGINE. 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\_1](/bulletins/11009928.md), 2024-11-06, Service bulletin: ENGINE. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
- [A2424632074810\_2](/bulletins/11009327.md), 2024-10-28, Service bulletin: ENGINE. 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.
- [A2124402044640\_13](/bulletins/11002220.md), 2024-06-25, Service bulletin: ENGINE. This bulletin provides information when the engine is difficult to start; turbocharger is damaged \- 4.0L V8.
- [A2124402044640\_13](/bulletins/11002120.md), 2024-06-25, Service bulletin: ENGINE. This bulletin provides information when the engine is difficult to start; turbocharger is damaged \- 4.0L V8.

JSON: [/v1/bulletins/10124616](/v1/bulletins/10124616)

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