Audi bulletin TSB_2081342_1
What it saysThis bulletin provides information when there is a Drive System Malfunction, DTCs related to Knock Sensor P0327, P0332, P0328, P0333 - V6 TFS. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Mar 13, 2026, received Apr 7, 2026, about the engine. It names 62 model years (2018–2026). 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 when there is a Drive System Malfunction, DTCs related to Knock Sensor P0327, P0332, P0328, P0333 - V6 TFS.
Trouble codes it names: P0327 P0328 P0332 P0333
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_2081342_1 | Service bulletin | Mar 13, 2026 | 11031044 |
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 themand 22 more on this site: 2023 Audi S4, 2022 Audi S4, 2021 Audi S4, 2020 Audi S4, 2019 Audi S4, 2018 Audi S4, 2025 Audi S5, 2024 Audi S5, 2023 Audi S5, 2022 Audi S5, 2021 Audi S5, 2020 Audi S5, 2019 Audi S5, 2018 Audi S5, 2025 Audi SQ5, 2024 Audi SQ5, 2023 Audi SQ5, 2022 Audi SQ5, 2021 Audi SQ5, 2020 Audi SQ5, 2019 Audi SQ5, 2018 Audi SQ5.
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 62 model years this bulletin names have filed 822 complaints with NHTSA since 2015. 189 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.
The first time, while driving at 50-55mph, the engine decelerated suddenly. After about 10-15 seconds struggles with the gas pedal and brake pedal, the car accelerated normally. I pulled safely to side of the road to shut off the engine and start again. Things seemed to work like normal. The control panels did not show any warning signs.
2021 Audi A7 · Engine · filed with NHTSA Apr 5, 2026
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
The car was at the dealership for a second time due to an emissions issue. While there the coolant light came on. After paying for a second evaluation, it was determined that the water pump was failing. Because of the water pump design, coolant migration occurred which can ultimately lead to turbo failure or catastrophic issues.
2022 Audi SQ5 · Engine · filed with NHTSA Sep 20, 2026
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 group206 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_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… |
| SM 35-2026 | Other | Aug 21, 2026 | This special notice is to inform dealers to return the parts listed and only order the successor parts going forward. |
| 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_2079917_2 | Service bulletin | Aug 20, 2026 | This bulletin provides information when the engine can only be started with a delay; 2.0 ltr. 4 cyl. TFSI. |
| 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_2083001_1 | Service bulletin | Aug 11, 2026 | This bulleti provides informaoitn when there is a fuel pressure sensor malfunction, drive system DTC P119A/P119B - 3.0L V6 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 TSB_2081342_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 TSB_2081342_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 TSB_2081342_1 cover?
The manufacturer filed it against 62 model years: 2026 Audi A6, 2025 Audi A6, 2024 Audi A6, 2023 Audi A6, 2022 Audi A6, 2021 Audi A6 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.