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Service bulletins for the 2013 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.

1666 on file from NHTSA, as of 2026-10-19.

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By component

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
A1720072060033_12020-08-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin contains repair instructions for when there are noises in the engine compartment with DTC P052E00.
A1920042025303_12020-07-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for identifying and mixing factory fill coolants.
A0120622033001212020-06-04. Service bulletin. ENGINE; EQUIPMENT. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
A0020372059437_12020-06-04. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY. The informational bulletin explains why during COVID-19 there is winter-blend fuel during a warmer season and causing some issues.
A0120582033001202020-05-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
A1720992040644112020-04-02. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
Circular19N8REV12020-03-06. Service bulletin. ENGINE; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. SERV_ACT - After-Run Coolant Pump - Updated claiming and work instructions: A single part number per criteria will now be used.
AWA 19-062020-01-08. Service bulletin. ENGINE; EQUIPMENT. The communication contains the details of the water pump extended warranty.
A0119192033001192019-08-07. Service bulletin. ENGINE. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
AWA 19-032019-06-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin explains the warranty extension for the crankcase ventilation valve on certain 3.0L and 4.0L vehicles.
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.
Circular - 19N82019-05-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. After-Run Coolant Pump
Dealer - 19N82019-05-06. Service bulletin. ENGINE AND ENGINE COOLING. After-Run Coolant Pump repair available.
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,
A011999 20338062019-04-08. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides repair instructions when coolant control valves have coolant inside of their electrical connector.
A011902 20330012019-04-08. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
A011999 20338062019-04-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides repair instructions when coolant control valves have coolant inside of their electrical connector.
A011894 20330012019-02-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
A011893 2033001-2019-02-19. Service bulletin. ENGINE. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
A871782 2044717-2019-02-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. This bulletin provides instructions on correcting a high-pitched buzzing noise in the cabin when the fan speed is no higher than 2.
A191790 2047114-2019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair information for a malfunctioning V50 coolant recirculation pump that prevents the passenger side from heating properly with DTC B10D004 or B11D501.
A011879 2033001-2018-10-15. Service bulletin. EQUIPMENT; ENGINE. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
A171893 2040644_2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
A011862 2050329_2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This bulletin contains repair instructions for when the MIL is on and there are one of several DTCs stored in the ECM.
A011857 2042071_2018-05-21. Service bulletin. EQUIPMENT; ENGINE. This bulletin contains repair instructions for when the MIL is on and one of many DTCs is stored in relation to dylinder on demand function.

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