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Service bulletins for the 2018 Audi A3

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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
A9020442032113_32020-05-07. Service bulletin. ELECTRICAL SYSTEM. This information bulletin contains a background on the outside air temperature reading.
A9120572055591_12020-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for when the MMI screens go blank and the system reboots, it may have stored DTC U10CF00 and/or B13B901.
A3720952047609_42020-05-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when a 'vehicle eletronics malfunction' message appears in the display (DTC B116229).
A3420442047609_32020-04-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when a "vehicle eletronics malfunction" message appears in the display (DTC B116229).
18AUUSMaint01302020-02-08. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Additional Maintenance Section: ADDED to Battery - Connected gateway 'for Audi Connected Services' (if applicable)
A9119232037809_52020-01-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin contains instructions about updating the navigation map.
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
A9119162042506_82020-01-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This technical service bulletin explains how to determine the status of activation keys (that affect the function of Audi drive select, cruise control, navigation, Bluetooth, smartphone interface and voice recognition), and how to update them.

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