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Service bulletins for the 2019 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.

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

By type

By component

By trouble code

Bulletins, newest first
Dealer 24GJ2021-05-06. Service bulletin. ELECTRICAL SYSTEM. Audi is providing an Engine Control Module (ECM) software update to address elevated tailpipe emissions that were found during vehicle testing. This software will also improve drivability and provide other diagnostic improvements.
Circular 24GJ2021-05-06. Service bulletin. ELECTRICAL SYSTEM. Audi is providing an Engine Control Module (ECM) software update to address elevated tailpipe emissions that were found during vehicle testing. This software will also improve drivability and provide other diagnostic improvements.
A7021722038029_82021-05-06. Service bulletin. STRUCTURE; EQUIPMENT. This bulletin contains repair instructions for various squeaks and/or rattles that are heard from the roof area on vehicles equipped with pananormic sunroof.
A6921632061030_32021-05-06. Service bulletin. AIR BAGS; SEAT BELTS. This bulletin contains instructions for correcting DTC B12251B, B102229, and/or B102202 with airbag/seatbelt warning lamp or the PODs indicator light is displaying incorrectly.
A5721752022032_92021-05-06. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. This technical service bulletin provides troubleshooting information for the vehicle locking system.
A9121862062713_12021-04-06. Service bulletin. EQUIPMENT. This bulletin contains repair instructions for when there is radio static when the rear heater is active.
A5521532062669_12021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin states that this is a normal condition and to not perform any repairs.
A9421362023322_32021-04-06. Service bulletin. EXTERIOR LIGHTING. This informational bulletin contains information on the different shading of LED headlights.
A8021112062583_12021-04-06. Service bulletin. EQUIPMENT. This bulletin contains instructions for addressing an insufficient or uneven heating performance from the HVAC system.
A9621632059201_42021-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains information for when the messages appear in the instrument cluster about the high beam assist and/or traffic sign detection with DTC C12B3FD.
A3421522062540_12021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for diagnosing and addressing a 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.
A9121782050565_32021-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains general software update instructions for vehicles with PR Code 7UH.
A9121762037809_82021-04-06. Service bulletin. EQUIPMENT. This informational bulletin contains instructions about updating the navigation map.
A1921122061918_22021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
A9121752062386_12021-03-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin states to reset the MMI system and then create a PSS record if it sporadically is no longer possible to change radio stations.
A9121702062267_12021-03-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin states to not perform any repairs and show the customer how to manually re-enable the map.
A9121722047576_62021-03-04. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin contains software instructions for vehicles with MIB2 with Navigation plus.
A6921622061030_22021-03-04. Service bulletin. SEAT BELTS; AIR BAGS. This bulletin contains instructions for correcting DTC B12251B, B102229, and/or B102202 with airbag/seatbelt warning lamp or the PODs indicator light is displaying incorrectly.
A4621252054385_22021-03-04. Service bulletin. EQUIPMENT; SERVICE BRAKES. This informational contains an explanation for when the customer hears creaking noises when braking at almost standstill (crawling when pulling away or briefly before standstill).
A9721782061976_12021-03-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains guidance for submitting warranty wiring repairs.
A9421342012749_12021-03-04. Service bulletin. EXTERIOR LIGHTING. This bulletin contains instructions for addressing condensation in the headlights.
A4621222051095_42021-03-04. Service bulletin. EQUIPMENT. This informational bulletin contains instructions on how to download and use the Audi Frequency App.
A4021232061464_22021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin addresses a cracking noise from the front end when changing direction.
A9421332061922_12021-03-04. Service bulletin. EQUIPMENT. This informational contains instruction on how to document optical concerns for warranty claims.

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