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Service bulletins for the 2014 Audi A8

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.

1325 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
1491202884222022-08-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Customer vehicle is fitted with unauthorized ECM tuning.
1488203804512022-08-01. Service bulletin. ENGINE AND ENGINE COOLING. DTC P218100 will be stored if, after a specified air flow (warm-up phase), the measured engine temperature does not reach the value in the timing map. Particles in the cooling system from the production process affect the closing of the coolant thermostat.
1484203536832022-08-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Due to a production issue for the level sensor, the ECM cannot correctly read the reductant (AdBlue) fluid level.
1481203536822022-08-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Due to a production issue for the level sensor, the ECM cannot correctly read the reductant (AdBlue) fluid level.
19J1UPDATE2022-07-05. Service bulletin. ENGINE AND ENGINE COOLING. A quality package has been defined for Audi vehicles with 4.0L TFSI engine manufactured within a Specific Period.
27 14 22 20363922022-05-31. Service bulletin. ENGINE AND ENGINE COOLING. Vibrations felt at 1000 rpm and 3000 rpm
26 14 22 20377702022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. Software improvement with more robust onboard diagnostics. If ECM software is current or newer than below, this bulletin cannot be applied. Follow GFF instructions.
37 14 37 20371372022-05-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM. Incorrect software calibration in the engine control module (ECM), J623, and transmission control module (TCM), J217. Customer may report feeling a slight hesitation or delay at 5-9 mph after accelerating from a stop.
26 14 22 20377702022-05-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. The ECM software version is older than the specified software for this bulletin. Software improvement with more robust onboard diagnostics.
26 14 21 20360702022-05-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. While these types of noises could be attributed to a number of components in the vehicle, misaligned front exhaust hangers may be a contributing factor.
A1722192040644132022-04-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
A1722182040644122022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
A2122392044640_12022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when the engine cannot be started or it is difficult, there is unusual noises when accelerating and/or there is reduced engine performance.
A1722172060750_32022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for using the UV additive to find engine oil leaks.
A0122162033001262022-03-04. 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.
A1922282025303132022-02-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin contains instructions for identifying and mixing factory fill coolants.
A1922272025303122022-02-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT. This bulletin contains instructions for identifying and mixing factory fill coolants.
A2121382044640112022-01-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when the engine cannot be started or it is difficult, there is unusual noises when accelerating and/or there is reduced engine performance.
2613202026757 22021-12-13. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. An AdBlue message may appear in the instrument cluster either because there is a fault in the
1713472035463 22021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. Electronic oil consumption measurement.
A0121112033001252021-10-06. 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.
A2121372044640_12021-09-02. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when the engine cannot be started or it is difficult, there is unusual noises when accelerating and/or there is reduced engine performance.
A1921222046712_32021-08-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
A2021352043357_12021-08-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM:SOFTWARE. This technical service bulletin provides a software code for correcting an issue that causes DTC P046100.
A1021222018288_92021-06-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This technical service bulletin reminds the reader to check for metal debris when replacing an engine.

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