Audi bulletin A1923412062951_3
What it saysThis bulletin provides information for when the red coolant warning lamp is on and the DTCs P218100, P017B00, P017C00, and/or P017E00 are stored in the ECM. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Sep 7, 2023, received Oct 5, 2023, about the engine. It names 13 model years (2019–2021). 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 red coolant warning lamp is on and the DTCs P218100, P017B00, P017C00, and/or P017E00 are stored in the ECM.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| A1923412062951_3 | Service bulletin | Sep 7, 2023 | 10242911 | PDF, 186 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
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Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2019 Audi S8.
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 12 model years this bulletin names have filed 48 complaints with NHTSA since 2015. 11 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.
We are told by Audi dealer service that our entire water pump system is defective and needs to be replaced at a cost of $5000+. We've had Audis subject to past recall and class action settlements. This is an ongoing, known issue for Audi for over a decade. Frustratingly, our 2020 SQ7 model is not included in any current recalls.
2020 Audi SQ7 · Engine · filed with NHTSA Jul 25, 2025 · ODI 11676169
Audi 2020 A8L Engine Fire 3/6/2024 Confirmed by Fire Department, American Family Insurance Unclear if it has been inspected by the Audi U.S. No indication has been received. Incident occurred March 6th, 2024 at approximately 3pm. Operated vehicle in early morning to meet friends for coffee at a nearby coffee shop.
2020 Audi A8 · Engine · filed with NHTSA Apr 8, 2024 · ODI 11581726
Complete Engine Failure - Audible Engine Knock Noise. Bank 2 Knock Sensor Faults stored & recorded at Audi of Hoffman Estates. Worked with Audi Of Amercia where they denied any wrongdoing or know issues. Bore socped engine at an independent shop & confirmed the cyclinder 6 bore was scored due to picton failure.
2019 Audi A8 · Engine · filed with NHTSA Oct 16, 2025 · ODI 11693878
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 group164 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… |
| 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. |
| TSB_2070281_7 | Service bulletin | Sep 14, 2026 | This bulletin provides information when the MIL is on; P310B00 - low fuel pressure regulation, fuel pressure outside of tolerance - symptom… |
| TSB_2070281_6 | Service bulletin | Aug 28, 2026 | This bulletin provides information when the MIL is on, DTC P310B00 is stored; low fuel pressure regulation, fuel pressure outside of toleran… |
| TSB_2070281_5 | Service bulletin | Aug 27, 2026 | This bulletin provides information when the MIL is on, DTC P310B00 is stored; low fuel pressure regulation, fuel pressure outside of toleran… |
| 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_2081030_3 | Service bulletin | Aug 13, 2026 | This bulletin provides information when there is an abnormal engine knocking noise from the engine compartment; V6 3.0L TFSI. |
| TSB_2079209_3 | Service bulletin | Aug 7, 2026 | This bulletin provides information when the exhuast emissions warning lamp is on P0299. |
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 A1923412062951_3 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 A1923412062951_3 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 A1923412062951_3 cover?
The manufacturer filed it against 13 model years: 2021 Audi A8, 2020 Audi A8, 2019 Audi A8, 2021 Audi RS, 2021 Audi RS Q8, 2020 Audi RS Q8 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.