Audi bulletin A3924682074844_1
What it saysThis bulletin provides informiaotn in instances wehre whistling noises are heard at about 100 mph from the rear final drive/propshaft. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Aug 8, 2024, received Sep 6, 2024, about the power train — 2 documents under this number. It names 23 model years (2018–2025). 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 communicationThis bulletin provides informiaotn in instances wehre whistling noises are heard at about 100 mph from the rear final drive/propshaft.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| A3924682074844_1 | Service bulletin | Aug 8, 2024 | 11007310 | |
| A3924682074844_1 | Service bulletin | Aug 8, 2024 | 11007229 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 8W0 521 101 C | — | — | |
| 8W0 521 101 K | is fitted | — | eBay Motors → |
| 8W0 521 101 F | Technical Service Bulletin | — | eBay Motors → |
| 8W0 521 101 L | — | — |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Audi’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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 themA 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 23 model years this bulletin names have filed 129 complaints with NHTSA since 2015. 7 of them name 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.
While driving, car suddenly started overheating. Warning message asked me to pull over and let the car run idle. However, I was on a free way that was under construction and all shoulders were closed. So no way for me to stop for at least 4 miles. I was afraid that the engine would blow while driving the whole time.
2021 Audi RS · Power Train · filed with NHTSA Oct 2, 2025 · ODI 11691071
I received a coolant overheating message, pulled to side of road. Let vehicle cool off although it just showed coolant warning and actual engine temperature showed normal along with oil temperature.
2018 Audi S5 · Power Train · filed with NHTSA Mar 23, 2024 · ODI 11579095
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 power train
Source: same model, same component group94 other manufacturer communications filed against these Audi models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Audi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_2080075_4 | Service bulletin | Sep 28, 2026 | This TSB provides information when there is a drive system fault in the instrument clusteer, DTC P066700, symptom 20752, address: 0002. |
| TSB_2079998_5 | Service bulletin | Sep 28, 2026 | This bulletin provides information when there is a drive system fault in the insrument cluster; DTC P071100 symptom 20756 - diagnostic addre… |
| TSB_2080077_4 | Service bulletin | Sep 25, 2026 | This bulletin provides information when the gearbox warning light illuminates; drive system fault with event memory entry P060A00; P1FD700. |
| TSB_2081071_3 | Service bulletin | Aug 20, 2026 | This Pending Service Solution (PSS) requests that technicians enter a record in the PSS databse when there is functional issue in the gearbo… |
| TSB_2082948_1 | Service bulletin | Aug 5, 2026 | This bulletin provides information when the transmission position cannot be selected. |
| TSB_2059057_15 | Service bulletin | Aug 4, 2026 | This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra. |
| TSB_2073060_5 | Service bulletin | Jul 21, 2026 | This bulletin provides information when there is a loss of coolant from the coolant pump. |
| TSB_2059057_14 | Service bulletin | May 27, 2026 | This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra. |
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 A3924682074844_1 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 A3924682074844_1 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 A3924682074844_1 cover?
The manufacturer filed it against 23 model years: 2025 Audi RS, 2024 Audi RS, 2023 Audi RS, 2022 Audi RS, 2021 Audi RS, 2019 Audi RS and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.