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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.

About P0456 on the 2012 Audi A6: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P0456 are shown. Show all

Bulletins, newest first
24124420277322024-02-20. Service bulletin. FUEL SYSTEM, GASOLINE. MIL on, no leak in EVAP system (DTC P045600 in ECM)
01126120277322024-02-20. Service bulletin. ENGINE AND ENGINE COOLING. MIL on, no leak in EVAP system (DTC P045600 in ECM)
0113992027732112023-01-03. Service bulletin. ELECTRICAL SYSTEM. 01 MIL on, no leak in EVAP system (DTC P045600 in ECM. Software update needed.
0113992027732112022-10-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). 01 MIL on, no leak in EVAP system (DTC P045600 in ECM. Software update needed.
0113992027732112022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). 01 MIL on, no leak in EVAP system (DTC P045600 in ECM. Software update needed.
A2019162035073142019-06-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. This bulletin contains repair instructions for when the MIL is on and the DTC P045600 is stored in the ECM. This document also applies to the 2015 A3 Cabriolet and the 2015 A4 Cabriolet.
A2019132035073132019-05-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when the MIL is on and the DTC P045600 is stored in the ECM. Vehicles also include 2015 A3 Cabriolet and 2012 RS7,
A0115372027732-12018-02-05. 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.
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.
A201443 2035073-2017-12-05. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 20 number 14-41 dated October 9, 2014. MIL on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A201441 2035073-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 20 number 14-34 dated June 26, 2014. MIL on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A011321 2027732-2017-12-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 13-99 dated May 17, 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.
A011385 2027732-2017-11-17. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Supersedes Technical Service Bulletin Group 01 number 13-84 dated April 3, 2013. MIL on. DTC P0456 (very small EVAP leak) stored in engine control module (ECM), J623 (01). No leaks found in the EVAP system.
A011384 2027732-2017-11-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 01 number 13-71 dated March 4, 2013. MIL on. DTC P0456 (very small EVAP leak) stored in engine control module (ECM), J623 (01). No leaks found in the EVAP system. Software update needed.
A011371 2027732-2017-11-17. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 01 number 12-61 dated December 12, 2012. MIL on. DTC P0456 (very small EVAP leak) stored in engine control module, J623 (01). No leaks found in the EVAP system. Software update needed.
A201554 2035073-2017-11-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 20 number 15-52 dated October 28, 2015. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A201552 2035073-2017-11-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 20 number 15-48 dated October 15, 2015. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A201548 2035073-2017-11-17. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 20 number 15-46 dated May 15, 2015. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A011259 2027732-2017-11-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 24 number 12-44 dated September 17, 2012. MIL on. DTC P0456 (very small EVAP leak) stored in ECM. No leaks found in the EVAP system. Software update needed.
A011261 2027732-2017-11-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Supersedes Technical Service Bulletin Group 01 number 12-59 dated November 20, 2012. MIL on. DTC P0456 (very small EVAP leak) stored in ECM. No leaks found in the EVAP system. Software update needed.
A201434 2035073-2017-11-08. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 20 number 14-32 dated March 21, 2014. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A201432 2035073-2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING. upersedes Technical Service Bulletin Group 20 number 14-31 dated January 9, 2014. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A011468 2027732-2017-11-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 13-21 dated August 9, 2013. The MIL is 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.
A201431 2035073-2017-11-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Supersedes Technical Service Bulletin Group 20 number 13-28 dated November 14, 2013. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the ECM. Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak.
A201328 2035073-2017-10-31. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 20 number 13-27 dated October 16, 2013. MIL on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected.

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