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Service bulletins for the 2008 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
A011256 2031368-2017-11-08. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. MIL on. Engine misfire. Poor performance. Unnecessary High Pressure Fuel Pumps replacement due to Guided Fault Finding test plans not being performed or interrupted when the following DTC?s are present in the engine control module.
A911263 2021151-2017-11-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Supersedes Technical Service Bulletin Group 91 number 11 ? 83 dated April 15, 2011. The customer may report that the illumination of the dash insert, the air conditioning control panel or the inside light flickers when briefly pressing the accelerator in P or N or when shifting down while driving downhill. Only vehicles with PR number 8GH may be affected. When high electricity consumers are switched off and the battery is fully charged, the energy generated by the alternator is sometimes too great for the power system to absorb. This may lead to briefly increased voltage, and the lights mentioned above may briefly flicker. This characteristic is caused by the alternator design and is a normal condition of the vehicle.
A901238 2032113-2017-11-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The customer may state that the outside ambient temperature display is incorrect. To achieve a smoothening effect of the displayed outside ambient temperature, the value shown does not instantaneously follow the temperature sensor measurement. The display will not change faster than 4° F (2° C) per minute. This concept applies to both falling and rising temperatures. A programming strategy is also implemented to avoid incorrect readings on a parked vehicle, due to the temperature sensor being affected by outside influences such as radiant heat from the engine bay, elevated road surface temperatures, etc.
A001466 2037949-2017-11-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. A DTC with the description ?Invalid Data Record? is stored after an ECU has been replaced or updated. This DTC is normal. It indicates that the parameter data has not been properly programmed into the ECU by SVM.
A001465 2011732-2017-11-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 00 number 12-32 dated February 7, 2012. This Technical Service Bulletin (TSB) details the general process for carrying out a Software Version Management (SVM) software update for any TSB or Update.
A911437 2030947-2017-11-08. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 91 number 13-92 dated July 16, 2013. The customer complains that when he or she is trying to place a phone call from the vehicle while using a Bluetooth®-connected phone, the phone call disconnects before it begins and an error shows on the MMI display. The message may be "Function not supported" or "Network error". The customer is using a phone with the Android operating system. In addition, Skype®, or another network-based communication software, is installed on the phone. Call can be placed directly from the phone without a problem. When the phone receives the request to place a call from the vehicle, a prompt appears on the phone asking the user to choose how the call should be placed. If the prompt is ignored, the MMI system disconnects the call because it assumes that the phone is not responding.
A171449 2028440-2017-11-08. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Supersedes Technical Service Bulletin Group 17 number 12-26 dated January 20, 2012. When the vehicle is completely refueled, the vehicle range (?distance to empty?) that is displayed is different than the vehicle range that was displayed the last time the vehicle was completely refueled. The displayed vehicle range drops inconsistently. After the vehicle is refueled, the displayed vehicle range does not change for a long period of time. When the vehicle is driven on hilly roads for a long period of time, the displayed vehicle range suddenly changes by a significant amount. There are no DTCs related to fuel senders stored in the instrument cluster control module, J285 (address word 17). This condition does not involve or affect the accuracy of the fuel level indicator, but only the estimated distance to empty display on the on-board computer.
A911419 2026895-2017-11-08. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 11-16 dated October 5, 2011. During a Bluetooth call, the sound is difficult to hear for the other party. Voice recognition accuracy is poor. This TSB provides guidelines for testing microphones in a vehicle.
A011463 2033630-2017-11-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 13-86 dated April 15, 2013. The MIL is on. There is a rough idle. DTCs are stored in the ECM. Engine may have reduced performance without significant loss of power or stalling. 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.
A911304 2013422-2017-10-31. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 12-49 dated July 31, 2012. The Bluetooth® telephone cannot be connected to the vehicle?s Infotainment system. Certain restrictions are present when a Bluetooth device is connected to the vehicle. The restrictions vary depending on the vehicle system present.
A611321 2010342-2017-10-31. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 61 number 11-14 dated August 16, 2011. Convertible top exterior cloth appears soiled. The convertible top is made of durable fabric that has been treated at the factory with a compound that helps repel dirt and water. With proper care, the cloth will retain its function and proper appearance for a long time. It is normal, however, for the fabric to change color somewhat as it ages. This is particularly true of lighter-color tops. The cloth tension changes when the top is opened, which can cause kinks. When the top is closed, the kinks improve after a short time. However, these material-related kinks can never be completely avoided. In addition, dirt and dust can deposit in the kinks. If these dirt and dust deposits are not properly removed in a car wash, they can contribute to poor appearance
A691326 2023323-2017-10-31. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 69 number 12-25 dated April 25, 2012. After the airbag control module (J234) has been replaced, the control unit cannot be coded via SVM spec/actual. An SVM code is required to code and parameterize the new service replacement airbag control module. Each model?s SVM code is provided in a parts bulletin (GP bulletin), which should have been referenced through ETKA when the module was replaced. The control module cannot be coded until the SVM code has been executed.
A271319 2029010-2017-10-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Supersedes Technical Service Bulletin Group 27 number 12-13 dated March 22, 2012. The customer may report a discharged battery when trying to start the vehicle. The condition results in a no start.
A911598 2018187-2017-10-27. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 14-50 dated July 10, 2014. Customer may report that cracking, grinding, rattling, humming, whining, or similar interference is coming from one or more speakers. Parts of the speakers (such as the brackets, cables, or covers) or parts of the interior fittings (such as door covers, rear shelf, facings, or covers) can vibrate at certain frequencies, causing noises. The radio tuner or other control modules may be affected by electromagnetic interference from aftermarket electronic devices.
A971548 2013504-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 97 number 10-15 dated October 20, 2010. Sporadic fault memory entries are stored in various control modules. Contacts may be widened (over 0.63 mm) if incorrect pins or incorrect methods for current flow tests are used. Either action may cause intermittent electrical connections, which can cause sporadic DTCs to be stored in various control modules.
A911579 2038824-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 14-69 dated November 4, 2014. The following message appears on the MMI display: "Device or cable type not supported". The AMI cable being used is a genuine Audi-branded cable with an Audi part number (see Required Parts and Tools for a list of valid part numbers). The "Device or cable type not supported" message may be displayed when an incorrect AMI cable type is connected to the MMI system. Only cables with an Audi part number (i.e., 4F0.XXX.XXX) are supported by the MMI system. Volkswagen-branded cables look similar, but are not guaranteed to work with Audi MMI systems. The label on the end of an Audi-branded cable has an Audi logo and Audi part number. Audi-branded cables have unique firmware inside the hardware that can determine which MMI system and iOS device are connected to the cable. Volkswagen cables do not have this firmware. The firmware is required to allow the system to function normally due to the different technology available in the different MMI systems and in the different iPhones and iPod Touch devices. In addition, the AMI system was designed to play the music stored locally on the connected device only. Music streaming (from Spotify or Pandora, for example) is not supported, and music stored in the cloud (on Google Play, Amazon Prime, or iTunes Match/iCloud, for example) may drop out, pause, and skip when played.
A011515 2018260-2017-10-21. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 14-96 dated September 26, 2014. The MIL is on. A number of DTC entries with regard to the throttle valve are stored in the engine control module (ECM). In most cases, the entries are sporadic. Contact resistance in the ECM wiring throttle valve.
2021833/52016-05-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-2021833/42016-05-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TSB-01-12-392012-04-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM. AUDI: ENGINE HAS REDUCED ENGINE PERFORMANCE WITHOUT LOSS OF POWER OR STALLING; CIRCUIT GROUNDS; FUEL QUALITY POOR; MIL IS CONSTANTLY ILLUMINATED OR FLASHING; ROUGH IDLE; IGNITION COILS INCORRECTLY INSTALLED; ELECTRICAL CONNECTIONS LOOSE OR DAMAGED. *PE
TSB-00-10-022011-02-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. AUDI: SOFTWARE VERSION MANAGEMENT (SVM) OPERATING INSTRUCTIONS. DETAILING THE GENERAL PROCESS FOR CARRYING OUT A SOFTWARE VERSION MANAGEMENT (SVM) SOFTWARE UPDATE FOR ANY TSB OR REQUIRED VEHICLE UPDATE (RVU). TROUBLESHOOTING INFORMATION IS INCLUDED. *PE
TSB-01-09-062010-03-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. AUDI: SOFTWARE VERSION MANAGEMENT (SVM), OPERATING INSTRUCTIONS. SVM IS A PROCESS TO UPDATE THE PROGRAMMING IN FLASHABLE (RE-PROGRAMMABLE) CONTROL MODULES AND/OR TO DOCUMENT CHANGES IN SOFTWARE LEVELS IN AUDI VEHICLES. THIS SYSTEM USES THE VAS 5051B OR VAS 5052 DIAGNOSTIC TOOLS TO SEND VEHICLE SPECIFIC DATA TO THE SVM DATABASE, TO DOWNLOAD INSTRUCTIONS FROM THE SVM DATABASE, AND TO FLASH CONTROL UNITS FOR IDENTIFIED SOFTWARE UPDATES. *PE
TSB-97-07-132010-02-27. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING:ENGINE. AUDI: RVU-3.2L REROUTING ENGINE WIRING HARNESS (17). REQUIRED VEHICLE UPDATE IS IN EFFECT FOR 15 MONTHS FROM DATE OF PUBLICATION. AFTER THAT DATE, THIS RVU WILL EXPIRE AND NO LONGER BE IN EFFECT. WIRING TO THE SECONDARY AIR SOLENOID MUST BE REROUTED IN THE ENGINE COMPARTMENT. *PE
KM-13792009-10-23. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; ELECTRICAL SYSTEM:WIRING; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. AUDI: MIL LIGHT ON AND DTC P2294 (FUEL PRESSURE REGULATOR 2 CONTROL CIRCUIT), P2295 (FUEL PRESSURE REGULATOR 2 CONTROL CIRCUIT LOW), P2296 (FUEL PRESSURE REGULATOR 2 CONTROL CIRCUIT HIGH) IN FAULT MEMORY DRIVABILITY IS NOT AFFECTED. WIRING HARNESS TO HIGH PRESSURE PUMP MIGHT BE STRESSED AND TIGHTLY BENT AT THE PUMP CONNECTOR. THE HARNESS ALSO MIGHT BE BENT AROUND SHARP EDGES OF CYLINDER HEAD. NO MODELS LISTED. *PE
TSB-01-08-332009-05-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. AUDI: SOFTWARE VERSION MANAGEMENT(SVM) OPERATING INSTRUCTIONS. ITS A PROCESS TO UPDATE THE PROGRAMMING IN FLASHABLE (REPROGRAMMABLE) CONTROL MODULES AND/OR TO DOCUMENT CHANGES IN SOFTWARE LEVELS IN ALL AUDI VEHICLES. *PE

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