Audi bulletin AWA 23-06
What it saysThis Document informs dealers on the new EVAP Purge Valve & Hose warranty extension for Certain MY 2019 - MY 2023 vehicles. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Jun 8, 2023, received Aug 4, 2023, about the engine. It names 18 model years (2019–2024). 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 communicationThis Document informs dealers on the new EVAP Purge Valve & Hose warranty extension for Certain MY 2019 - MY 2023 vehicles.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| AWA 23-06 | Service bulletin | Jun 8, 2023 | 10239669 | PDF, 141 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 themAlso filed against model years this site has no page for: 2020 Audi RS 5; 2019 Audi S6; 2019 Audi S7.
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 15 model years this bulletin names have filed 33 complaints with NHTSA since 2015. 8 of them name Engine — 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.
My Audi RS6 has experienced a failure involving the engine cooling system/water pump that requires repair. This appears to be a recurring issue among C8 RS6 owners. Other owners have reported water-pump failures, coolant loss, overheating, drivetrain malfunction warnings, turbo underboost faults, and vehicles entering reduced-power or…
2024 Audi RS · Engine · filed with NHTSA Sep 22, 2026 · ODI 11766216
The contact owns a 2022 Audi S6. The contact stated that the vehicle failed to start-up after multiple attempts. The “Depress Brake Pedal and Press START button” messages appeared on the instrument panel even though the contact was following the instructions.
2022 Audi S6 · Engine · filed with NHTSA Aug 19, 2022 · ODI 11480180
The car continues to smell like coolant and burns excessive oil. It has been taken in for service. Repairs have been attempted but problem still exists. On one occasion, service records indicate a test drive when the mileage remained the same.
2021 Audi RS · Engine · filed with NHTSA Apr 10, 2024 · ODI 11582098
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 group133 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_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… |
| SM 34-2026 | Other | Aug 21, 2026 | This special notice is to inform dealers to return the parts listed and only order the successor parts going forward. |
| TSB_2079209_3 | Service bulletin | Aug 7, 2026 | This bulletin provides information when the exhuast emissions warning lamp is on P0299. |
| TSB_2074640_3 | Service bulletin | Jun 26, 2026 | This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km. |
| TSB_2082323_1 | Service bulletin | Jun 10, 2026 | This bulletin provides informaiton when the engine is not running smoothly, misfiring. |
| TSB_2076749_3 | Service bulletin | Jun 10, 2026 | This bulletin provides information when the MIL is on, DTCs U060A00, U060900. |
| TSB_2073867_3 | Service bulletin | Jun 4, 2026 | This bulletin provides information when DTC U140A00 Terminal 30 is stored in the ECM. |
| TSB_2074303_12 | Service bulletin | Apr 30, 2026 | This bulletin provides informaiton when there is a red coolant temparature/coolant level warning lamp; 4.0 ltr. V8 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 AWA 23-06 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 AWA 23-06 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 AWA 23-06 cover?
The manufacturer filed it against 18 model years: 2024 Audi RS, 2023 Audi RS, 2022 Audi RS, 2021 Audi RS, 2019 Audi RS, 2024 Audi S6 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.