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Service bulletins for the 2009 Audi A4

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.

775 on file from NHTSA, as of 2026-10-19.

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By component

By trouble code

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
A4020052024318_92020-06-04. Service bulletin. EQUIPMENT; WHEELS. This technical service bulletin provides instructions for correcting a clicking sound from the wheel bearing(s).
A9120392018187112020-03-05. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin contains inspection guidelines for radio interference that causes noises in the speaker.
AWA 19-062020-01-08. Service bulletin. ENGINE; EQUIPMENT. The communication contains the details of the water pump extended warranty.
A9419182012749_12020-01-08. Service bulletin. EXTERIOR LIGHTING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Exterior lights, moisture accumulation 2013-2021 A3 Cabriolet, 2016-2018 Sportback, 2004-2005 A4 Cabriolet, 2004-2008 S4 Cabriolet, 2008 RS4 Cabriolet, 2010-2021 A4 allroad, 2018-2021 A5 Sportback, 2010-2012, 2018-2021 RS5 Cabriolet, 2018-2021 S5 Sportback, 2004-2006 A7, 2004-2011 S7, 2021 RS6 Avant, 2004-2006 S8
20AUTIRECHAINS2020-01-08. Service bulletin. EQUIPMENT; TIRES; EQUIPMENT ADAPTIVE/MOBILITY. New document 2004-2020 A4 allroad, A6 allroad, A8L, R8 Spyder
ATUBody20192019-10-07. Service bulletin. EQUIPMENT. Body components - Examples of customer misuse
A0019262052680_22019-10-02. Service bulletin. EQUIPMENT. This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage.
AWC 19-052019-09-10. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:LABELS; EQUIPMENT. This communication is issued to inform dealers of updated shipping regulations related to lithium ion batteries.
AWC 19-042019-08-07. Service bulletin. EQUIPMENT. This communication is issued to remind dealers of the repair validation process for repair group 19. 2005-2019 A3, 1996-2019 A4, 2008-2019 A5, 1992-2019 A6, 2012-2019 A7, 1997-2019 A8, 2019 E-Tron, 2015-2019 Q3, 2010-2019 Q5, 2007-2019 Q7, 2019 Q8, 2000-2019 TT, 2008-2018 R8
A4819792028220_82019-08-07. Service bulletin. EQUIPMENT; STEERING: STEERING WHEEL/HANDLE BAR. This technical service bulletin informs the reader that damage to the appearance of the leather steering wheel caused by outside influence is not covered under warranty. 2008-2020 A3, 2015-2020 A3 Cabrio, 2005-2016 A3 Sportback, 2005-2020 A4, 2010-2020 A4 allroad, 2005-2012 A4 Avant, 2005-2009 A4 Cabrio, 2010-2020 A5 Cabrio, 2008-2020 A5 Coupe, 2018-2020 A5 Sportback, 2005-2020 A6, 2005-2011 A6 Avant, 2008-2020 A7, 2005-2020 A8, 2008-2019 e-tron, 2019-2020 e-tron quattro, 2015-2020 Q3, 2009-2020 Q5, 2007-2020 Q7, 2019-2020 Q8, 2008-2020 R8 Coupe, 2011-2020 R8 Spyder, 2017-2019 RS3, 2007-2008 RS4, 2008 RS4 Cabrio, 2010-2020 RS5, 2010-2020 RS5 Cabrio, 2016-2018 RS6, 2016-2018 RS7, 2004-2012 S4, 2004-2009 S4 Cabrio, 2010-2020 S5 Cabrio, 2008-2020 S5 Coupe, 2018-2020 S5 Sportback, 2007-2020 S6, 2008-2020 S7, 2007-2009 S8, 2018-2020 SQ5, 2004-2020 TT Coupe, 2004-2020 TT Roadster, 2012 TT/RS Coupe
A9019192032113_22019-07-09. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This information bulletin contains a background on the outside air temperature reading. 2008-2020 A3, 2015-2020 A3 Cabrio, 2008-2016 A3 Sportback, 2008-2020 A4, 2010-2020 A4 allroad, 2008-2012 A4 Avant, 2008-2009 A4 Cabrio, 2010-2020 A5 Cabrio, 2008-2020 A5 Coupe, 2018-2020 A5 Sportback, 2008-2020 A6, 2008-2011 A6 Avant, 2008-2020 A7, 2008-2020 A8, 2008-2019 e-tron, 2015-2020 Q3, 2009-2020 Q5, 2007-2020 Q7, 2019-2020 Q8, 2008-2020 R8 Coupe, 2011-2020 R8 Spyder, 2017-2019 RS3, 2008 RS4, 2008 RS4 Cabrio, 2010-2020 RS5, 2010-2020 RS5 Cabrio, 2016-2018 RS6, 2016-2018 RS7, 2008-2012 S4, 2008-2009 S4 Cabrio, 2010-2020 S5 Cabrio, 2008-2020 S5 Coupe, 2018-2020 S5 Sportback, 2008-2020 S6, 2008-2020 S7, 2008-2009 S8, 2018-2021 SQ5, 2008-2020 TT Coupe, 2008-2020 TT Roadster, 2012 TT/RS Coupe
A0019212052680_12019-07-09. Service bulletin. AIR BAGS; EQUIPMENT; SEAT BELTS. This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage). 2008-2021A3, 2015-2021A3 Cabrio, 2005-2016 A3 Sportback, 1999-2021 A4, 2010-2021 A4 allroad, 1999-2012 A4 Avant, 2003-2009 A4 Cabrio, 2010-2021 A5 Cabrio, 2008-2021 A5 Coupe, 2018-2021 A5 Sportback, 1999-2021A6, 1999-2011A6 Avant, 2008-2020 A7, 1999-2021 A8, 2008-2019 e-tron, 2019-2021 e-tron quattro, 2015-2021 Q3, 2009-2021 Q5, 2007-2021 Q7, 2019 Q8, 2008-2020 R8 Coupe, 2011-2020 R8 Spyder, 2017-2019 RS3, 2007-2008 RS4, 2008 RS4 Cabrio, 2010-2021 RS5, 2010-2020 RS5 Cabrio, 2016-2018 RS6, 2016-2018 RS7, 2004-2012 S4, 2004-2009 S4 Cabrio, 2010-2021 S5 Cabrio, 2008-2021 S5 Coupe, 2018-2021 S5 Sportback, 2007-2021 S6, 2008-2020 S7, 2007-2009 S8, 2018-2021 SQ5, 2000-2021 TT Coupe, 2001-2021 TT Roadster, 2012 TT/RS Coupe
AWA 18-15-2019022019-04-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE; EQUIPMENT. This bulletin explains the extended warranty for the timing chain/timing chain tensioner in certain vehicles. Was revised on 11/13/18 to include a proration table for consequential damage repair reimbursement. It was revised again on 2/4/19 to include claiming information for entire engine replacement.
AWA 18-15-2019022019-04-01. Service bulletin. EQUIPMENT; ENGINE. This bulletin explains the extended warranty for the timing chain/timing chain tensioner in certain vehicles. Was revised on 11/13/18 to include a proration table for consequential damage repair reimbursement. It was revised again on 2/4/19 to include claiming information for entire engine replacement.
SM 44-2017 EN2019-04-01. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return all part numbers listed in the document and order the superseded part numbers going forward.
Maint Flip Chart2019-02-19. Service bulletin. EQUIPMENT. Revision to Tires-rotate: 5K only; added "(except R8)"
AWA 18-152018-12-10. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. This bulletin explains the extended warranty for the timing chain/timing chain tensioner in certain vehicles.
A4015462024687-42018-02-05. Service bulletin. STEERING; EQUIPMENT. Supersedes Technical Service Bulletin Group 40 number 12-25 dated August 7, 2012. Steering wheel oscillation at highway speeds (typically between 70 and 85 mph). No vibration in the seat surface or other vehicle components. Audi original equipment tires are installed on the vehicle. If necessary, TSB 2022179 has been completed and the 1st harmonic of radial force of every tire and wheel assembly is below 18 lbs. at a tire pressure of 36 PSI (2.5 bar). Ride disturbances such as uneven roads, wheel imbalance, impermissibly high radial forces of the tires, or other rotating components on the front of the vehicle are transmitted to the steering wheel as a vibration or oscillation.
A301519 2019850-2018-02-05. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN. Supersedes Technical Service Bulletin Group 30 number 11-10 dated December 2, 2011. Clutch is not operating properly. Clutch has a burnt smell. Clutch pedal does not fully return to starting position. Incorrect shifting, the revolutions of clutch plate and engine input shaft differ too much, excessive slipping of the clutch, and when the clutch is pressed and an incorrect lower gear is selected, can result in clutch damage.
A9615002027416-62018-02-05. Service bulletin. EQUIPMENT. Supersedes Technical Service Bulletin Group 96 number 14-85 dated July 24, 2014. The sunglass holder in the dome light assembly will not latch closed or is stuck closed. The condition may be intermittent. The sunglass holder spring latch mechanism may have been damaged during the assembly procedure.
A871569 2020124-2018-02-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Supersedes Technical Service Bulletin Group 87 number 14-49 dated April 25, 2014. Air conditioning is inoperative. The HVAC blower functions normally. Battery discharged; however, when charged, there is no bus silence when vehicle ignition is off. The A/C pressure/temperature sensor, G395, leaks refrigerant. This causes sensor G395 to show an incorrect or implausible value when reading MVBs. An incorrect signal or a low refrigerant level in the system can cause the air conditioning compressor to deactivate. The LIN cable connecting the vehicle electrical system control module, J519, to sensor G395 is pinched or cut. This affects the A4/S4, A5/S5 Coupe and Cabriolet, and Q5 vehicles. The A6 and A8 are not affected by this type of failure. The pressure sensor G395/G65 sends an incorrect signal that prevents bus silence and the battery is discharged. Sensor G395 is a LIN slave of the vehicle electrical system control module. The vehicle electrical system control module transfers the information provided by the sensor via the comfort data bus to the climate control module, J255.
ATE-17-052018-02-05. Service bulletin. EQUIPMENT. Due to increasing requests for high voltage personal protective equipment (HVE PPE) for dealer technicians working with high voltage vehicles (Hybrid, Plugin Hybrid, Electric Vehicle), the Volkswagen Tools and Equipment Team has identified two US based suppliers to support dealers in USA and Canada.
A571738 2017082-2018-02-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin contains instructions for sychronizing the remote key after the battery has been disconnected or replaced.
A151630 2045732-2018-02-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on removing a damaged screen from the non-return valve.
A001684 2037949-2018-02-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This technical bulletin provides instructions for an an error message and updating with an SVM code.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.