WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
A171789 20406442018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
A241450 2038212-2018-04-16. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. The engine judders or runs erratically. The vehicle judders during acceleration. No event entry is stored in the engine control module (ECM). The air mass meter is suspected to be faulty. Possible incorrect function on the sensor elements of the air mass meter.
A011748 2040403-2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 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.
A011685 2041120-2018-03-13. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This bulletin provides information regarding a software update for DTC P042000 and/or P043000.
A871679 2041717-2018-03-13. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin applies to any repair that requires replacement of the air conditioning compressor and details how to run a ODIS GFF test plan.
A0115292041097-12018-02-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. The MIL is on. Customer may report that the engine runs irregularly. DTCs are stored in the ECM. On the camshaft adjustment valve, the filter element can loosen. There is no consequential damage from loosened particles in the oil circuit. They are gathered by the oil filter.
A211522 2039006-2018-02-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Supersedes Technical Service Bulletin Group 21 number 14-21 dated November 26, 2014. The MIL is on. Customer may report a reduction in power. DTC P029900 (Turbo/Super Charger Underboost) is stored in the engine control module (ECM), J623 (address word 01). The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall off due to low tension of the clip. Consequently, the wastegate linkage becomes disconnected, causing MIL on and DTC P029900.
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.
21F2 - Dealer Le2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. On Audi vehicles with 4.0L TFSI engines manufactured within a specific period, the O-rings in the coolant lines for the turbocharger may be damaged. This can result in leaks between the coolant lines and the turbocharger.
A171783 2040644-2018-02-05. 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.
A0115312033806-72018-02-05. 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.
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.
A191785 2047114-2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM. 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.
A001791 2045316-2018-02-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY. This bulletin contains information about the Start/Stop system.
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.
A871781 2044717-2018-02-05. Service bulletin. ENGINE. This bulletin provides instructions on correcting a high-pitched buzzing noise in the cabin when the fan speed is no higher than 2.
A011730 2033001-2018-02-05. 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.
A191789 2046712-2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
21F2 - Circular2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING. On Audi vehicles with 4.0L TFSI engines manufactured within a specific period, the O-rings in the coolant lines for the turbocharger may be damaged. This can result in leaks between the coolant lines and the turbocharger.
21F2 - Bulletin2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. On Audi vehicles with 4.0L TFSI engines manufactured within a specific period, the O-rings in the coolant lines for the turbocharger may be damaged. This can result in leaks between the coolant lines and the turbocharger.
21F2 - Bulletin2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. On Audi vehicles with 4.0L TFSI engines manufactured within a specific period, the O-rings in the coolant lines for the turbocharger may be damaged. This can result in leaks between the coolant lines and the turbocharger.
A001349 2033576-2017-12-05. Service bulletin. ENGINE. Although the correct amount of oil was added to the engine during an oil change service, a check of the oil level shows that the oil level is not okay. When an unapproved aftermarket speed-filling device is used to add oil to the engine, the increased oil flow rate may force oil into the intake manifold or combustion chamber, creating the potential for engine damage.
A211421 2039006-2017-12-05. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 21 number 14-20 dated November 17, 2014. MIL on. Customer may report a reduction in power. DTC P029900 (Turbo/Super Charger Underboost) is stored in the engine control module (ECM), J623 (address word 01). The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall of due to low tension of the clip. Consequently, the wastegate linkage becomes disconnected, causing MIL on and DTC P029900.
A211420 2039006-2017-12-05. Service bulletin. ENGINE. MIL on. Customer may report a reduction in power. DTC P029900 (Turbo/Super Charger Underboost) is stored in the engine control module (ECM), J623 (address word 01). The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall of due to low tension of the clip. Consequently, the wastegate linkage becomes disconnected, causing MIL on and DTC P029900.
A191453 2039018-2017-12-05. Service bulletin. ENGINE AND ENGINE COOLING. A small amount of dry or crusted coolant is seen on the coolant pump housing. The coolant level warning is not on. A minor coolant leak is possible during the break-in phase of the coolant seal on the coolant pump. The dry coolant marks are normal.

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