Service bulletins for the 2018 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.
772 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Glass, wipers and mirrors are shown. Show all
| A872225201014617 | 2022-05-05. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin contains instructions for properly cleaning and removing a musty odor from the heating and ventilation system. |
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| A6421812049956_2 | 2022-01-06. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. This bulletin contains a software update to address one or more various malfunctions of the motor for the window regulator with DTCs; B148713, B14874B , B148754 and/or B148701. |
| A6421802020552_1 | 2021-06-03. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. This bulletin provides instructions on how to clean exterior glass. |
| A6420742020552_9 | 2020-06-04. Service bulletin. VISIBILITY:WINDSHIELD; EQUIPMENT. This bulletin provides instructions on how to clean exterior glass. |
| A6420732046397_4 | 2020-06-04. Service bulletin. VISIBILITY. This bulletin provides repair information for a creaking in the front and rear windshield. |
| A921924203815111 | 2020-01-08. 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. |
| A9219232038151_1 | 2019-12-07. Service bulletin. VISIBILITY; VISIBILITY:WINDSHIELD WIPER/WASHER. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct. 2015-2021 A3 Cabriolet, 2016-2018 A3 Sportback, 2018-2021 A5 Sportback, 2012 and 2018-2021 RS5 Cabriolet, 2018-2021 S5 Sportback, 2021 RS 6 Avant |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.