Audi bulletin A2724802075177_1
What it saysThis bulletin provides service information regarding the power supply; starter-alternator mechanical fault P2BA300 4.0l TFSI. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Sep 10, 2024, received Oct 28, 2024, about the electrical system. It names 2 model years (2021–2022). 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 service information regarding the power supply; starter-alternator mechanical fault P2BA300 4.0l TFSI.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| A2724802075177_1 | Service bulletin | Sep 10, 2024 | 11009329 |
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 2 model years this bulletin names have filed 11 complaints with NHTSA since 2015. 6 of them name Electrical System — 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.
Repair (component replacement) performed under Audi recall 27BQ (or 27BQ_DLR_LAUNCH) for faulty starter-alternator that can cause immediate catastrophic failure of all electrical systems affecting powertrain, steering, suspension, safety features, and emissions equipment has failed after 12 months and 2,516 miles.
2022 Audi RS · Electrical System · filed with NHTSA Dec 15, 2025 · ODI 11704997
Loss of electrical power while cruising on the interstate at 65 mph. There was a series of warning messages, YELLOW colored malfunctions such as "Sport differential malfunction", "electric system malfunction". Then RED colored warning message "Electric system: Malfunction!
2021 Audi RS · Electrical System · filed with NHTSA Nov 13, 2023 · ODI 11554925
The car stopped in the middle of the intersection due to a 48V issue that is back ordered worldwide. It has been in the shop five times in reference to this stopping multiple times in the road
2021 Audi RS · Electrical System · filed with NHTSA Sep 15, 2023 · ODI 11544671
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 electrical system
Source: same model, same component group519 other manufacturer communications filed against the Audi RS under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Audi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_2083385_1 | Service bulletin | Sep 23, 2026 | This bulletin provides information when there is a warning message in the instrument cluster about external sound. |
| TSB_2076396_3 | Service bulletin | Sep 23, 2026 | This bulletin provides information regarding driver assist systems; Audi adaptive light, Audi pre sense system fault, adaptive cruise assis… |
| TSB_2063336_5 | Service bulletin | Sep 23, 2026 | This bulletin provides information when DTC C12BFF0 is stored in the lane change modeul or the radar sensor; intersection assist/lane change… |
| TSB_2068573_6 | Service bulletin | Sep 18, 2026 | This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor faul… |
| TSB_2081074_2 | Service bulletin | Sep 15, 2026 | This bulletin provides information when the front assist intervenes. |
| TSB_2074059_4 | Service bulletin | Sep 15, 2026 | This bulletin provides general information about SOS Emergency Assist. |
| TSB_2058077_11 | Service bulletin | Sep 15, 2026 | This bulletin provides information when there is an Audi pressense warning, warning jolt, and/or brake engagement. |
| TSB_2054202_8 | Service bulletin | Sep 15, 2026 | This bulletin provides information when there is an Audi adaptive light system malfunction; DTC C12B3FA is stored in the control module for… |
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 A2724802075177_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 A2724802075177_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 A2724802075177_1 cover?
The manufacturer filed it against 2 model years: 2022 Audi RS, 2021 Audi RS. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.