Service bulletins for the 2012 Audi A6
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.
1506 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Electrical system are shown. Show all
| A011688 2040403- | 2018-03-13. Service bulletin. ELECTRICAL SYSTEM. This technical service bulletin instructs the reader to replace either a combi valve or vacuum solenoid valve depending on the circumstances under which DTC P244000 and/or P244200 were stored. |
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| A011686 2029340- | 2018-03-13. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides software update information for DTCs in the engine control module that can cause a MIL light. |
| A9415712039584-2 | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 94 number 15-59 dated January 29, 2015. A bulb failure warning for one or several taillight functions appears in the instrument cluster, but the taillights are operating normally. The warning only occurs at very low outside temperatures. DTC entries are logged in the comfort system central control module. The transistor in the taillight is a component of the bulb failure monitor. The transistor is out of tolerance, which causes the bulb failure monitor to not see enough current consumption when outside temperatures are very low. This causes a false lamp failure warning. |
| A0115372027732-1 | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 01 number 14-68 dated March 5, 2014. The MIL is on. DTC P045600 (very small EVAP leak) stored in engine control module. No leaks found in the EVAP system. Software update needed. |
| A0115362041120-2 | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 15-26 dated June 30, 2015. The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module (ECM). The diagnostic limitations were too narrow. |
| 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. |
| A0115312033806-7 | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 80 number 14-07 dated August 11, 2014. The MIL is on. Climate system heating performance is insufficient. Coolant level warning is on. Engine temperature is elevated. ?Limp Home? mode is active. Faults may be stored in the transmission control module. Coolant loss is found from one or more control valves: N82, N509, or N488. Coolant may have migrated into the wiring harness through the connector and into various control units. Climate system heating performance is insufficient due to coolant loss as a result of coolant migration in the electrical harness, faults in 08-Heating and Air Conditioning Electronics that result from coolant migration in the electrical harness, or a faulty N82 control valve. |
| A901777 2036132- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains software update instructions to correct a heads up display flicker or dims quickly. |
| A011399 2027732- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 01 number 13-85 dated April 11, 2013. MIL on. DTC P045600 (very small EVAP leak) stored in engine control module (ECM), J623 (address word 01). No leaks found in the EVAP system. Software update needed. |
| A911724 2036575- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides an explanation for the customer regarding known software issues with the MIB & MMI3G+ bluetooth security profile. |
| A571740 2047432- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair information for when the remote key has low range or the functions do not work. This is for all keys and there is no relevant DTCs stored. |
| 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. |
| A911685 2044670- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical service bulletin provides instructions for a software update to correct an issue with dropped calls in RMC MMI systems. |
| A911682 2045580- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information regarding a data connection message dur to the SIM card for T - Mobile subscribers. |
| A011680 2033806- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides repair information when coolant control valves have coolant inside of their electrical connector. |
| 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. |
| A911743 2042097- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin contains resource information for when the traffic feature is inoperative in the MMI navigation. |
| A201796 2043758- | 2018-02-05. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This bulletin instructs the reader to diagnose issues with fuel pressure and to replace the fuel delivery unit with the new kit if the correct DTC and symptom code combination is present. |
| A011732 2033001- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction. |
| A911731 2044670- | 2018-02-05. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains instructions for a software update to correct an issue with dropped calls in RMC MMI systems. |
| A001459 2029737- | 2017-12-14. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 00 number 12-34 dated June 6, 2012. The process of draining oil through the drain plug is not always tidy. When oil is drained through the drain plug, the oil might spill on components around the oil pan area. If it is not properly cleaned up, this spilled oil could drip after the procedure is complete, causing unnecessary customer complaints. |
| A011397 2030580- | 2017-12-05. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 13-94 dated May 8, 2013. The customer complains that the vehicle sporadically cannot be started. The yellow gearbox warning light may be illuminated. DTCs may be present. The remote key being used is transmitting incomplete immobilizer information to the vehicle; resulting in the condition. |
| A011394 2030580- | 2017-12-05. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 12-60 dated December 7, 2012. The customer complains that the vehicle sporadically cannot be started. The yellow gearbox warning light may be illuminated. DTCs may be present. The remote key being used is transmitting incomplete immobilizer information to the vehicle; resulting in the condition. |
| A011390 2033767- | 2017-12-05. Service bulletin. ELECTRICAL SYSTEM. 01 MIL on (DTC P1196/P1197/P0135, heater circuit fault lambda sensor) - Repair Authorization. |
| A011389 2033768- | 2017-12-05. Service bulletin. ELECTRICAL SYSTEM. MIL on. A cylinder misfire fault (DTC P0301 ? P0306) with DTC P130A is stored in the engine control module (ECM), J623 (address word 01). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.