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Service bulletins for the 2017 Audi A4

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.

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

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By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
A0020422045316_52020-11-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE. This bulletin contains information for diagnosing the Start/Stop system.
A9020682059891_22020-10-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This informational bulletin directs you to read the SSP and not perform any repairs for the concern.
A9020652032113_42020-09-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM. This information bulletin contains a background on the outside air temperature reading.
A0120832060429_12020-09-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This bulletin contains instructions for when there may be a noise from the exhaust flap or there are DTCs sporadically stored in the ECM.
A0120782045673_52020-09-03. Service bulletin. ENGINE; EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides instructions regarding an SVM update needed when a DTC is stored in the engine control module.
A0120772045673_42020-09-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ENGINE. This bulletin provides instructions regarding an SVM update needed when a DTC is stored in the engine control module.
2010-2021EngOil2020-09-03. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. New document
A0120732058890_22020-08-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING. This bulletin contains instructions for replacing a part or performing a software update for DTC P000000.
A3020262060101_12020-08-06. Service bulletin. ENGINE; POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:GEARS. This bulletin contains instructions for DTCs P181C00, P181E00, and P181E00 with Start-Stop not working or a message appearing.
A1020192059446_22020-08-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PIPES, HOSES, AND FITTINGS. This bulletin contains repair instructions for oil loss found in the engine compartment.
A1920042025303_12020-07-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for identifying and mixing factory fill coolants.
A1020182059446_12020-06-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains repair instructions for oil loss found in the engine compartment.
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.
A0120482058767_12020-04-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.
Dealer 23Ai2020-01-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This action addresses an emissions system-related Engine-Off calculation error and improves the Oxygen Sensor Aging-Correction Factor. Neither concern has a direct impact to vehicle exhaust or evaporative emissions. However, either condition could affect proper operation of the Malfunction Indicator Lamp (MIL). 2017-2018 A3 Cabriolet
Circular 23Ai2020-01-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This action addresses an emissions system-related Engine-Off calculation error and improves the Oxygen Sensor Aging-Correction Factor. Neither concern has a direct impact to vehicle exhaust or evaporative emissions. However, either condition could affect proper operation of the Malfunction Indicator Lamp (MIL). 2017-2018 A3 Cabriolet

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