Audi bulletin A0123662071199_1
What it saysThis bulletin provides information for when the MIL is on with DTC P045600 Very Small Leak detected NVLD. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Aug 9, 2023, received Sep 1, 2023, about the fuel/propulsion system. It names 15 model years (2021–2023). 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 information for when the MIL is on with DTC P045600 Very Small Leak detected NVLD.
Trouble codes it names: P0456 all 1 read from the document itself; NHTSA’s summary names none
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| A0123662071199_1 | Service bulletin | Aug 9, 2023 | 10241211 | PDF, 210 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 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 15 model years this bulletin names have filed 73 complaints with NHTSA since 2015. 1 of them name Fuel/Propulsion 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.
Fuel gauge does not move at all and showed tank was 5/8 full. However, when I was on the freeway, the vehicle stalled because I was out of gas. Luckily, I was on the right lane and therefore was able to pull over to the side without an incident. This is a new vehicle with faulty fuel sensors.
2023 Audi S5 · Fuel/Propulsion System · filed with NHTSA Jan 7, 2023 · ODI 11500623
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 fuel/propulsion system
Source: same model, same component group22 other manufacturer communications filed against these Audi models under the same component group (fuel/propulsion system), newest first. The eight newest are listed; the rest are on the Audi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_2082702_2 | Service bulletin | Aug 21, 2026 | This bulletin provides informatoinw hen the fuel tank level is implausible; DTC B105A1A B103E29. |
| TSB_2082702_1 | Service bulletin | Jul 13, 2026 | This bulletin provides informatoinw hen the fuel tank level is implausible; DTC B105A1A B103E29. |
| TSB_2081573_4 | Service bulletin | Jul 13, 2026 | This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible. |
| SM 01-2026 | Other | Jul 9, 2026 | This special notice is to inform dealers to return the parts listed if it meets the criteria provided. |
| TSB_2081573_3 | Service bulletin | Jul 2, 2026 | This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible. |
| TSB_2078916_3 | Service bulletin | Jun 4, 2026 | This bulletin provides information when the fuel tank cap seal is leaking; DTC P044200, P045600 and/ or P00EF00 in stored in the ECM. |
| TSB_2079461_3 | Service bulletin | Dec 11, 2025 | This bulletin provides information when the DTC P014800 or P008700 stored in ECM; Fuel System. |
| TSB_2080126_1 | Service bulletin | Dec 1, 2025 | This bulletin provides information when there is a noise from the fuel line. |
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 A0123662071199_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 A0123662071199_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 A0123662071199_1 cover?
The manufacturer filed it against 15 model years: 2023 Audi A4, 2022 Audi A4, 2021 Audi A4, 2023 Audi A5, 2022 Audi A5, 2021 Audi A5 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.