Service bulletins for the 2019 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.
859 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| A9120782057052_3 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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. |
|---|---|
| A9020522059863_1 | 2020-07-07. Service bulletin. EQUIPMENT. This informational bulletin contains instructions for when the message "Audi pre sense currently restricted. See owners manual" is displayed in the instrument cluster without DTCs. |
| A9020512058077_4 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for determining unexpected Audi pre sense interventions. |
| A9020502059738_1 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains a software update for when the engine does not crank/start with the instrument cluster only partially turning at best. DTC U010000 may be stored or it may not. |
| A912076204250610 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. 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. |
| A9120772056076_8 | 2020-07-07. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This bulletin contains instructions for when there is no diagnostics communication with the ConBox. |
| A9120752057715_3 | 2020-07-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin states that dor DTC U101400 to not perform any repairs and that this does not affect the customer or their experience. |
| A9120722037809_6 | 2020-07-07. Service bulletin. EQUIPMENT:ELECTRICAL. This informational bulletin contains instructions about updating the navigation map. |
| A4320372059665_1 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; SUSPENSION. This bulletin contains a software update that corrects the control module configuration and addresses a warning light. |
| A0020382039206_3 | 2020-07-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin contains instructions on how to use the QR code in a TSB. |
| A9120702044694_2 | 2020-06-04. Service bulletin. EQUIPMENT. This technical service bulletin provides troubleshooting for issues with the navigation map database. |
| A9120652036576_6 | 2020-06-04. Service bulletin. EQUIPMENT. This informational bulletin contains instructions for when a phone is connected to the vehicle via Bluetooth, one of the following conditions occurs when the user searches for a contact name in the MMI address book (by using the MMI control knob or the voice recognition system): *The MMI screen goes blank then restarts. *The MMI screen freezes for a few minutes then recovers. |
| SM 32-2020 | 2020-06-04. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the part number listed if it meets the criteria provided. |
| A9020482048517_3 | 2020-06-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains a software update for when only the park aid lines are displayed. |
| A6920522059428_1 | 2020-06-04. Service bulletin. SEAT BELTS; AIR BAGS. This bulletin contains instructions for DTCs B130494 and B130594. |
| A6420742020552_9 | 2020-06-04. Service bulletin. VISIBILITY:WINDSHIELD; EQUIPMENT. This bulletin provides instructions on how to clean exterior glass. |
| A4020072047920_4 | 2020-06-04. Service bulletin. STEERING; SUSPENSION; EQUIPMENT:MECHANICAL. The bulletin contains diagnosis information for noises on the front end of the vehicle. Potential rolling sounds. |
| A4220442038689_4 | 2020-06-04. Service bulletin. EQUIPMENT; SUSPENSION. This bulletin contains information on how to fix a clunking or rattling noise heard from the rear suspension when the vehicle is driven over bumps. |
| TT 91 18 06 | 2020-06-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Apple car play function. |
| A4020062059474_1 | 2020-06-04. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION. This bulletin contains instructions for correcting buffer stop noise (rumbling or squeaking from the front end). |
| A4020052024318_9 | 2020-06-04. Service bulletin. EQUIPMENT; WHEELS. This technical service bulletin provides instructions for correcting a clicking sound from the wheel bearing(s). |
| A4020042047920_3 | 2020-06-04. Service bulletin. SUSPENSION. The bulletin contains diagnosis information for noises on the front end of the vehicle. Potential rolling sounds. |
| A1020182059446_1 | 2020-06-04. 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_1 | 2020-06-04. 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. |
| A872005201014615 | 2020-05-07. Service bulletin. EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS:WATER HEATER. This bulletin contains instructions for properly cleaning and removing a musty odor in the vehicle. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.