Audi bulletin AVin4PinAug23
What it says3.0L engine sound generator malfunctioning Belt noise from starter generator Check engine lamp - DTC P240200 stored in ECM Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 "Check engine lamp on, DTC… NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Aug 1, 2023, received Sep 1, 2023, about the engine. It names 62 model years (2017–2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as NHTSA’s summary states it — build dates and equipment as the manufacturer filed them. The dealer checks the VIN and the build date on the door jamb; a vehicle outside the window is not covered by this bulletin.
3.0L engine sound generator malfunctioning Belt noise from starter generator Check engine lamp - DTC P240200 stored in ECM Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 "Check engine lamp on, DTC P042000: Catalyst System,Bank1 Efficiency Below" Check engine lamp, Belt Starter Generator DTC U046900 symptom 26950 Fuel pressure low. DTC P008700 Leak from oil pan Low coolant warning in cluster, coolant level is correct MMI screen exhibits "ghost touches" randomly changing screen Noise from front door trim panel while driving USB Trim detached from center console Valve cover leaking oil
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| AVin4PinAug23 | Service bulletin | Aug 1, 2023 | 10241486 | PDF, 238 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themand 22 more on this site: 2021 Audi Q8, 2020 Audi Q8, 2019 Audi Q8, 2023 Audi RS, 2023 Audi RS Q8, 2023 Audi S4, 2022 Audi S4, 2021 Audi S4, 2020 Audi S4, 2019 Audi S4, 2023 Audi S5, 2022 Audi S5, 2021 Audi S5, 2020 Audi S5, 2019 Audi S5, 2023 Audi SQ5, 2022 Audi SQ5, 2021 Audi SQ5, 2023 Audi e-tron, 2022 Audi e-tron, 2021 Audi e-tron, 2023 Audi e-tron GT.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 62 model years this bulletin names have filed 1,564 complaints with NHTSA since 2015. 1,153 of them name Electrical System, Engine, Power Train — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2019 Audi Q8, the 21 owners who gave an odometer reading for Power Train reported it at a median of 4,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
BSG/alternator faulty. Started displaying “electrical malfunction!” Had to stop immediately before immediate shut down on road. Problem had been known on hybrid models of Audi specially larger models. Recall/TSB have been opened for those vehicles. Vehicle was inspected by dealership. No prior warning other than that immediate red warning
2023 Audi A3 · Electrical System · filed with NHTSA Sep 21, 2026 · ODI 11765831
On March 22, 2026, my Check Engine light came on while driving my 2022 Audi A3. Prior to this, I had been noticing a slight jerk when accelerating from a stop. Because Audi dealerships charge approximately $250 just to read diagnostic codes, I went to Discount Auto Parts, where they retrieved code P27F500 — indicating the gear shift lock…
2022 Audi A3 · Power Train · filed with NHTSA Mar 23, 2026 · ODI 11726245
The first time, while driving at 50-55mph, the engine decelerated suddenly. After about 10-15 seconds struggles with the gas pedal and brake pedal, the car accelerated normally. I pulled safely to side of the road to shut off the engine and start again. Things seemed to work like normal. The control panels did not show any warning signs.
2021 Audi A7 · Engine · filed with NHTSA Apr 5, 2026 · ODI 11729313
In depth: 2019 Audi A6 electrical problems → · 2018 Audi Q5 electrical problems →
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group322 other manufacturer communications filed against these Audi models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Audi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_2079927_3 | Service bulletin | Sep 30, 2026 | This bulletin provides information when the exhaust emissions warning lamp lights up; DTC P050A; 2.0 ltr 4-cyl. |
| TSB_2083393_1 | Service bulletin | Sep 25, 2026 | This bulletin provides information when the starter/generator drive belt is noisy or came off. |
| TSB_2079911_4 | Service bulletin | Sep 25, 2026 | This bulletin provides information when the MIL is on; DTC P050600 with Symptom 4008 stored in ECM V6 TFSI. |
| TSB_2078914_6 | Service bulletin | Sep 25, 2026 | This bulletin provides information when the MIL is on; DTC P064F00 stored in the ECM. |
| TSB_2069531_2 | Service bulletin | Sep 25, 2026 | This bulletin provides information when the MIL is on, EVAP pressure/temp sensor incorrect DTC displayed: P202400, P045000, P045200, P24D600… |
| TSB_2078849_3 | Service bulletin | Sep 23, 2026 | This bulletin provides information regarding an oil change when replacing the engine control unit. |
| TSB_2083287_1 | Service bulletin | Sep 18, 2026 | This Pending Service Solution (PSS) requests that technicians create a record in the PSS database when DTC P001400 camshaft position is stor… |
| TSB_2081030_4 | Service bulletin | Sep 14, 2026 | This bulletin provides information when there is an abnormal knocking noise from the engine compartment; V6 3.0L TFSI. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Audi, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Audi AVin4PinAug23 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the AVin4PinAug23 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does AVin4PinAug23 cover?
The manufacturer filed it against 62 model years: 2024 Audi A3, 2023 Audi A3, 2022 Audi A3, 2023 Audi A4, 2023 Audi A5, 2022 Audi A5 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.