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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
A0120532058491_22020-05-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when there is DTC P310B00 and the engine warning lamp is on with running issues.
AWA 20-032020-05-07. Service bulletin. POWER TRAIN. This Document informs dealers on the new gear shift micro switch warranty extension for 2019 Q3 and 2015-2019 A3 vehicles
A5120132009967_12020-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains instructions for vehicle inspection, protection removal, and detailing.
A4820852053869_32020-04-02. Service bulletin. STEERING. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800. 48 Steering wheel heater is not working, DTC B145504 is stored in the steering column control module.
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).
A0120462014753102020-04-02. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
SM 13-20202020-04-02. Service bulletin. STRUCTURE. This special notice is to inform dealers to return the part listed and order the superseded part number going forward
19AUUSMaint03202020-04-02. Service bulletin. ENGINE. Standard Maintenance Section - Added A6 (all models) & A7 (all models) to "Plenum Chamber and water drain valves: Check for Dirt."
A3720932058687_12020-03-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for submitting a PSS for when there are no faults, oil leaks but there is a sudden increase in engine speed.
A9120392018187112020-03-05. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin contains inspection guidelines for radio interference that causes noises in the speaker.
A9120372057052_22020-03-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin contains instructions for when the MMI shows the message 'Read error occurred when accessing the navigation data' after initialization and reboots constantly with DTC B126CF0 and/or B126CF1.
A8720042058598_12020-03-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin contains repair instructions for when the customer feels a flow of warm air from the panel vents or footwell when the convertible top is open and the HVAC system is turned off intermittently.
A4420732056386_32020-03-05. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
A3420432047609_22020-03-05. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC). This bulletin contains repair instructions for when a 'vehicle eletronics malfunction' message appears in the display (DTC B116229).
A0120432058491_12020-03-05. Service bulletin. EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:UNIT; ELECTRICAL SYSTEM. This bulletin contains repair instructions for when there is DTC P310B00 and the engine warning lamp is on with running issues.
19AUUSMaint02202020-03-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. OIL CHART SECTION: CHANGED - Castrol Oil to 'Audi approved XXXX-Refer to the Parts Catalog' for all models.
A9120342042506_92020-03-05. Service bulletin. EQUIPMENT. 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.
A3520372058504_12020-03-05. Service bulletin. POWER TRAIN. This bulletin contains repair instructions for when DTC P173500 and/or P173600 are logged with a shuddering transmission or messages or Limp Home Mode.
19AUUSMaint01302020-02-08. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Standard Maintenance Items section: ADDED to Connected box battery '(for Audi Connected Services)'
SM 01-20202020-02-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This special notice is to inform dealers to return all parts listed and only use the superseded part numbers going forward.
A9020372058077_32020-02-08. Service bulletin. EQUIPMENT. This bulletin contains instructions for determining unexpected Audi pre sense interventions.
A9020362058077_22020-02-08. Service bulletin. SERVICE BRAKES; EQUIPMENT. This bulletin contains instructions for determining unexpected Audi pre sense interventions.
A0120412053040_22020-02-08. Service bulletin. EQUIPMENT. This information bulletin contains instructions for when the MIL on and DTC P050A00 or P050700 is stored.
A9119232037809_52020-01-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin contains instructions about updating the navigation map.
A9219242038151112020-01-08. Service bulletin. EQUIPMENT; VISIBILITY:WINDSHIELD WIPER/WASHER. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct.

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