WenmarOpen by Wenmar Pro

Service bulletins for the 2012 Audi A5

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.

1064 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
1453203812922022-08-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. A check with the engine oil service dipstick T40178 is necessary, but the adjustment values for the dipstick are not available in the Elsa repair manual. Because of a system change, the adjustment values for the service dipstick T40178 were removed from the repair manual.
1450203812912022-08-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. A check with the engine oil service dipstick T40178 is necessary, but the adjustment values for the dipstick are not available in the Elsa repair manual. Because of a system change, the adjustment values for the service dipstick T40178 were removed from the repair manual.
1491202884222022-08-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Customer vehicle is fitted with unauthorized ECM tuning.
30 13 18 20282292022-05-31. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:MANUAL TRANSMISSION; ENGINE. Vehicle does not start or only starts when the clutch pedal is pressed very firmly
28 13 21 20175552022-05-31. Service bulletin. ENGINE; ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Key does not stay or engage in ignition lock
26 13 17 20279452022-05-31. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. Humming or metallic rattling noise from under the vehicle, heard most consistently during engine idle or slow acceleration. Initial inspection indicates that the noise is coming from the exhaust system. Relative movements in the rear mounting of the exhaust system (rear silencer).
24 14 50 20382122022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). 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.
37 14 44 20328122022-05-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ELECTRICAL SYSTEM; POWER TRAIN. Further transmission control module (TCM), J217, software calibration needed to improve shift concerns. Further engine control module (ECM), J623, software calibration needed to improve hesitation. Hesitation concerns, harsh downshifts when braking, or harsh 1-2 upshifts.
37 14 39 20328122022-05-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN. Hesitation concerns, harsh downshifts when braking, or harsh 1-2 upshifts.Further transmission control module (TCM), J217, software calibration needed to improve shift concerns. Further engine control module (ECM), J623, software calibration needed to improve hesitation.
37 14 35 20328122022-05-02. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ELECTRICAL SYSTEM. Further transmission control module (TCM), J217, software calibration needed to improve shift concerns. Further engine control module (ECM), J623, software calibration needed to improve hesitation. Hesitation concerns, harsh downshifts when braking, or harsh 1-2 upshifts.
37 14 32 20328122022-05-02. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Hesitation concerns, harsh downshifts when braking, or harsh 1-2 upshifts. Further transmission control module (TCM), J217, software calibration needed to improve shift concerns. Further engine control module (ECM), J623, software calibration needed to improve hesitation.
37 14 29 20290272022-05-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Customer may report transmission warning light is illuminated. In some cases, the vehicle will not move after being started and placed into gear. After key cycle, the vehicle drives without restriction. The DTCs are stored due to an issue with the transmission control module software.
37 13 83 20328122022-05-02. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Further TCM software calibration to improve shift concerns. Further ECM software calibration to improve hesitation. Hesitation concerns, Harsh downshifts when braking or harsh 1-2 upshifts.
26 13 18 20279452022-05-02. Service bulletin. ENGINE AND ENGINE COOLING. Humming or metallic rattling noise from under the vehicle, heard most consistently during engine idle or slow acceleration. Initial inspection indicates that the noise is coming from the exhaust system. Relative movements in the rear mounting of the exhaust system (rear silencer).
24 14 50 20382122022-05-02. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. Possible incorrect function on the sensor elements of the air mass meter.
A1722172060750_32022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for using the UV additive to find engine oil leaks.
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.
9013422035902 12021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. 90 "Ignition lock faulty" message in cluster information display.
1913462033491 52021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. Customer may report coolant leaking from the engine area.
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.
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.
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.
A1921152061604_32021-05-06. Service bulletin. ENGINE. This bulletin contains instructions for resolving a coolant leak.
A1321132062387_12021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for determining if a repair is needed when coolant touches a poly V-belt and/or a toothed belt.

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