Audi bulletin A1523442053278_9
What it saysThis bulletin provides information for when there is an oil leak from the cylinder head. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Jul 14, 2023, received Aug 4, 2023, about the engine. It names 30 model years (2018–2021). 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.
Get the next Audi bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis bulletin provides information for when there is an oil leak from the cylinder head.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| A1523442053278_9 | Service bulletin | Jul 14, 2023 | 10239680 | PDF, 524 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 06M906048F | Solenoid valve (if applicable) | 01 | eBay Motors → |
| 06M103650D | Gasket Cylinders 1-3 (if applicable) | 01 | eBay Motors → |
| 06M103649D | Gasket Cylinders 4-6 (if applicable) | 01 | eBay Motors → |
Read by machine from the document NHTSA serves (11 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.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Email me new Audi bulletins for one of these models
A weekly email, sent only in a week when Audi files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 30 model years this bulletin names have filed 643 complaints with NHTSA since 2015. 160 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.
Upon starting the vehicle while parked on 10/18/2025, dashboard displayed warning: "Turn off engine and check coolant level. See owner's manual." Visual inspection revealed coolant residue on mechanical coolant pump switching valve N649 on cylinder head bank 1, indicating water pump internal seal failure allowing coolant to leak into…
2019 Audi S5 · Engine · filed with NHTSA Dec 5, 2025 · ODI 11703321
An Audi dealer has just diagnosed my 2018 S5 Cabriolet Prestige with vacuum system contamination caused by water pump failure. I had requested the diagnostic due to small coolant leaks on the engine and loss of coolant in the expansion tank. No warning lights and no overheating yet. Not yet aware of any loss of performance.
2018 Audi S5 · Engine · filed with NHTSA Dec 14, 2025 · ODI 11704929
Throttle lag from a near (but not full) stop. If coming to rolling stop, from 1-8 MPH, and then hit accelerator, the car engine revs but no acceleration to vehicle. After a 2-3 second delay, car will lunge and accelerate normally. Scary when need to accelerate from a near rolling stop. Left hand turns especially dangerous.
2019 Audi Q8 · Engine · filed with NHTSA Mar 2, 2020 · ODI 11315572
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 group237 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_2083393_1 | Service bulletin | Sep 25, 2026 | This bulletin provides information when the starter/generator drive belt is noisy or came off. |
| TSB_2079911_4 | Service bulletin | Sep 25, 2026 | This bulletin provides information when the MIL is on; DTC P050600 with Symptom 4008 stored in ECM V6 TFSI. |
| TSB_2078914_6 | Service bulletin | Sep 25, 2026 | This bulletin provides information when the MIL is on; DTC P064F00 stored in the ECM. |
| 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_2078849_3 | Service bulletin | Sep 23, 2026 | This bulletin provides information regarding an oil change when replacing the engine control unit. |
| 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_2083125_1 | Service bulletin | Aug 27, 2026 | This Pending Service Solution (PSS) requests that technicians create a record in the PSS database when there is a drive system fault; fuel p… |
| TSB_2082285_2 | Service bulletin | Aug 27, 2026 | This repair authorization requests that technicians open a ticket with the Technical Assistance Center in instances where the DTC P060C00 i… |
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 A1523442053278_9 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 A1523442053278_9 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 A1523442053278_9 cover?
The manufacturer filed it against 30 model years: 2020 Audi A6, 2019 Audi A6, 2020 Audi A7, 2019 Audi A7, 2021 Audi A8, 2020 Audi A8 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.