Audi bulletin TSB_2077593_3
What it saysThis bulletin provides information when DTCs P00B700, P011600, or P268100 is stored; engine temperature too high. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Oct 21, 2026, received Nov 4, 2026, about the engine. It names 29 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 DTCs P00B700, P011600, or P268100 is stored; engine temperature too high.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_2077593_3 | Service bulletin | Oct 21, 2026 | 11039222 |
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 29 model years this bulletin names have filed 747 complaints with NHTSA since 2015. 128 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.
[B9 SQ5 - EA839 3.0T V6 CWGD] - Remove Front Bumper & Activate Radiator Support Service Position - Drain Cooling System - Remove & Replace Water Pump, Thermo- Pneumatic Valve, & Vacuum Line Set w/ Solenoids & All Necessary Hardware - Remove & Replace Thermostat Assembly w/ Seal - Remove & Replace Both Accessory Drive Belts - Fill & Bleed…
2018 Audi SQ5 · Engine · filed with NHTSA Oct 22, 2026 · ODI 11773007
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 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 · ODI 11765703
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 group277 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_2083678_2 | Service bulletin | Oct 28, 2026 | This bulletin provides informtion when the exhaust emissions warning lamp lights up or flashes; sporadic misfires. |
| 19IB | Service campaign | Oct 22, 2026 | Due to a software issue, the vehicle's on-board diagnostic (OBD) system may incorrectly retain or report certain emissions-related diagnosti… |
| TSB_2081098_4 | Service bulletin | Oct 19, 2026 | This Pending Service Solution (PSS) requests that technicians enter a record into the PSS database when there is a power limit, plus the eng… |
| TSB_2083678_1 | Service bulletin | Oct 15, 2026 | This bulletin provides information when the exhaust emissions warning lamp lights up or flashes, sporadic misfires; 4.0 ltr V8 TFSI. |
| TSB_2082323_2 | Service bulletin | Oct 15, 2026 | This bulletin provides information when the engine is not runing smoothly; all gas engines. |
| TSB_2080446_4 | Service bulletin | Oct 15, 2026 | This bulletin provides information when DTC P01C400 (symptom 46312) is logged in the engine control unit, fuel rail pressure sensor 4-cyl.… |
| TSB_2083560_1 | Service bulletin | Oct 5, 2026 | This bulletin provides information when tehre is an engine warning lamp; DTC P060600. |
| TSB_2076749_4 | Service bulletin | Oct 5, 2026 | This bulletin provides infomration when the MIL is on; DTCs U060A00, U060900. |
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_2077593_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 TSB_2077593_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 TSB_2077593_3 cover?
The manufacturer filed it against 29 model years: 2024 Audi A3, 2023 Audi A3, 2022 Audi A3, 2025 Audi Q5, 2024 Audi Q5, 2023 Audi Q5 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.