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Service bulletins for the 2001 Audi TT

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.

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

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Bulletins, newest first
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
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
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 This special notice is to inform dealers to return all part numbers listed in the document and order the superseded part numbers going forward.
A1915612025303-52018-02-05. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 14-50 dated June 20, 2014. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY 2005 for all engines. G13 has been introduced in MY 2008 as factory filling and service.
A171782 2010043-2018-02-05. Service bulletin. ENGINE. This informational bulletin contains all the the Audi Oil Quality Standards that should be used when doing an oil change.
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.
A441662 2010334-2018-02-05. Service bulletin. WHEELS. This information TSB provides information regarding the correct way to torque adjust a wheel bolt.
A941791 2012749-2018-02-05. Service bulletin. EXTERIOR LIGHTING. This informational bulletin contains technical information for when there is condensation visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, and/or third brake light lens.
Accessories Oper2017-12-05. Service bulletin. EQUIPMENT. This is an advance notice for Audi of America employees. This notice contains information for the accessories operations technical bulletin.
A001470 2039206-2017-12-05. Service bulletin. ELECTRICAL SYSTEM. High quality media files (video and sound) are now integrated into technical service bulletins on a case-by-case basis. Media files can now be viewed on any smartphone or tablet. Audi of America has started to host its TSB videos outside of ElsaPro. Doing so provides higher-quality videos, more reliable access to the videos, and the ability to view the videos on different devices.
A441455 2010334-2017-12-05. Service bulletin. WHEELS. Supersedes Technical Service Bulletin Group 44 number 13-46 dated December 9, 2013. Wheel bolt requires torque adjustment.
A571382 2017082-2017-11-17. Service bulletin. LATCHES/LOCKS/LINKAGES; EQUIPMENT:ELECTRICAL. Supersedes Technical Service Bulletin Group 57 number 11-55 dated August 22, 2011. Central locking via remote control does not work either sporadically or permanently. The locks can still be operated manually. Missing synchronization between the remote control key and vehicle because the battery has been disconnected or the battery of the remote control has been replaced. If other senders operate in the same frequency range (mobile phones, TV stations, wireless headphones, baby monitors, other vehicle remote controls, etc.), the remote control key may have been temporarily switched off because a clear identification of the remote control key is not possible. This is necessary to prevent an unintentional unlocking of the vehicle by other unrelated senders.
A001348 2002047-2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Supersedes Technical Service Bulletin Group 00 number 11-19 dated April 8, 2011. This TSB contains information on technician preparation when calling the Audi Technical Assistance Center
A191335 2025303-2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 11-19 dated February 10, 2011. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY 2005 for all engines. G13 has been introduced in MY 2008 as factory filling and service.
A571385 2017082-2017-11-17. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES:DOORS:LATCH. Supersedes Technical Service Bulletin Group 57 number 13-82 dated February 5, 2013. Central locking via remote control does not work either sporadically or permanently. The locks can still be operated manually. Missing synchronization between the remote control key and vehicle because the battery has been disconnected or the battery of the remote control has been replaced. If other senders operate in the same frequency range (mobile phones, TV stations, wireless headphones, baby monitors, other vehicle remote controls, etc.), the remote control key may have been temporarily switched off because a clear identification of the remote control key is not possible. This is necessary to prevent an unintentional unlocking of the vehicle by other unrelated senders.
A191562 2025303-2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 15-61 dated July 7, 2015. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY 2005 for all engines. G13 has been introduced in MY 2008 as factory filling and service.
A201559 2011703-2017-11-17. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. Supersedes Technical Service Bulletin Group 20 number 13-29 dated November 15, 2013. The fuel tank has been removed from the vehicle and must be neutralized before shipment or disposal. When the fuel tank in a vehicle is replaced, the original tank must be properly flushed to neutralize the remaining gasoline or diesel fuel.
A001578 2021205-2017-11-17. Service bulletin. EQUIPMENT:OTHER:LABELS. Supersedes Technical Service Bulletin Group 00 number 10-05 dated June 14, 2010. VIN plate and/or B-Pillar Safety Certification label requires replacement.
A011309 2014753-2017-11-17. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Supersedes Technical Service Bulletin Group 00 number 10-01 dated February 5, 2010. Excessive accumulation of deposits on intake valves, intake manifold, fuel injectors and combustion chambers. Engine runs rough after cold start. Excessive engine cranking time. Hesitations while driving. Rough engine idle. Reduced engine performance. Poor fuel economy. Conditions may be severe enough to illuminate the MIL in conjunction with storage of DTCs for misfire (example: P0300, P030x) and / or lean fuel system (example: P0171, P0174, P1128, P1130, P1136, P1138) in the engine control module (ECM). Condition may be caused by use of contaminated gasoline. Condition may be caused by use of gasoline with a low content of deposit control additives.
A191341 2025303-2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 13-35 dated March 25, 2013. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY 2005 for all engines. G13 has been introduced in MY 2008 as factory filling and service.
A171232 2018550-2017-11-08. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 17 number 12 - 31 dated August 30, 2012. Oil consumption measurement - Repair Authorization (CA). In order to provide effective lubrication and cooling of internal engine components, all internal combustion engines consume a certain amount of engine oil. Oil consumption varies from engine to engine and may change significantly over the life of the engine. Typically engines with specified break-in periods consume more oil during the break-in period, and the oil consumption will stabilize after the break-in period. Refer to the Owner's Manual for specific break-in procedures. Under normal conditions, the rate of oil consumption depends on the quality and viscosity of the oil, the RPM at which the engine is operated, the ambient temperature and road conditions. Additional factors are the amount of oil dilution from water condensation or fuel residue and the oxidation level of the oil.
A941292 2012749-2017-11-08. Service bulletin. EXTERIOR LIGHTING. Supersedes Technical Service Bulletin Group 94 number 11-52 dated October 11, 2011. Condensation is visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, or third brake light lens. Damp air settles on the inside of a cold lens, which creates condensation. The headlight circulation system allows air from the outside to flow through the headlights. This open waterprotected ventilation system (needed for pressure compensation) creates different climate zones in the headlight: very warm areas, where the lens is warmed up by the light, and relatively cool areas, where the lens is cooled own by the air flow. Considerable differences in humidity and temperature between the inside and the outside of the headlights, even while driving, can lead to condensation. This is especially true in cold and wet weather, but it can also happen after a car wash, after steam cleaning the engine or the front end, with overnight temperature changes, etc. This phenomenon is more visible on lenses made of clear glass than on lenses with patterns. The moisture does not affect the headlight function (light performance) and does not lead to corrosion or other damage to headlight parts.
A001467 2002047-2017-11-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Supersedes Technical Service Bulletin Group 00 number 14-61 dated May 1, 2014. Technician preparation when calling the Audi Technical Assistance Center (TAC).

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