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
| A462124203418118 | 2021-03-04. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise. |
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| A462123202258410 | 2021-03-04. Service bulletin. SERVICE BRAKES. This informational bulletin provides diagnostic information for brake conditions. |
| A4421802056386_4 | 2021-03-04. Service bulletin. STEERING. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked. |
| A6621692030471_6 | 2021-03-04. Service bulletin. EQUIPMENT. This informational bulletin covers the condition of when license plate mounting bracket threaded inserts are stripped. |
| A4421792022563_1 | 2021-03-04. Service bulletin. WHEELS. This bulletin provides information regarding vibrations or movement that are felt in the wheel. |
| A1721122060750_2 | 2021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for using the UV additive to find engine oil leaks. |
| A9121642024323_7 | 2021-02-04. Service bulletin. PARKING BRAKE:ELECTRICAL:CONTROL MODULE. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning. |
| A1921112061918_1 | 2021-02-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank. |
| A6621682046229_2 | 2021-02-04. Service bulletin. STRUCTURE. This informational bulletin outlines proper warranty procedure for optical defects. |
| A0121962060429_2 | 2021-02-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains instructions for when there may be a noise from the exhaust flap or there are DTCs sporadically stored in the ECM. |
| A8520232061673_1 | 2021-01-08. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains instructions for properly removing the instrument panel vents. |
| A6920612061030_1 | 2021-01-08. Service bulletin. AIR BAGS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES; ELECTRICAL SYSTEM. This bulletin contains instructions for correcting DTC B12251B and B102229 with airbag/seatbelt warning lamp or the PODs indicator light is displaying incorrectly. |
| A402021204342411 | 2021-01-08. Service bulletin. SUSPENSION:FRONT. This bulletin contains repair information for when there is a creaking or squeaking noise from the front of the vehicle. This only occurs on uneven roads. |
| A5520512014055_8 | 2021-01-08. Service bulletin. EQUIPMENT; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains instructions for addressing discoloration due to moisture on a new vehicle. |
| A0020432061669_1 | 2021-01-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin contains instructions for Audi connect before performing any MMI work. |
| SM C-2020 | 2021-01-08. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the part numbers listed (State of California only). |
| A9120502047576_5 | 2021-01-07. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin contains software instructions for vehicles with MIB2 with Navigation plus. |
| A0020362002047_1 | 2020-12-21. Service bulletin. EQUIPMENT:ELECTRICAL. This information bulletin contains instructions for technicans on how to ensure their TAC call goes smoothly. |
| A402018204342410 | 2020-12-04. Service bulletin. SUSPENSION:FRONT. Thos bulletin contains repair information for when there is a creaking or squeaking noise from the front of the vehicle. This only occurs on uneven roads. |
| A9120382061397_1 | 2020-12-04. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains repair instructions for voice recognition or Bluetooth quality issues that are related to the microphone. |
| A4020202047758_6 | 2020-12-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; SUSPENSION; STEERING. This bulletin contains instructions for proper lubrication of the shock absorber to prevent cracking noises or spring jumps when steering. |
| A4020192061464_1 | 2020-12-04. Service bulletin. EQUIPMENT; SUSPENSION; SUSPENSION:FRONT:WHEEL BEARING. This bulletin addresses a cracking noise from the front end when changing direction. |
| A9120302061295_1 | 2020-12-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin explains how USB damage can occur. |
| 2010-2021EngOil | 2020-12-04. Service bulletin. EQUIPMENT. Added Saga Part number for 0W40 oil: SAGA Part: G E55040S0 |
| A9120242026611_7 | 2020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains a guide for troubleshooting HD radio issues. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.