Audi bulletin TSB_2078939_2
What it saysThis bulletin provides information when there DTC P218500 is stored in temerature sender G83. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Jun 30, 2026, received Jul 7, 2026, about the engine. It names 10 model years (2021–2025). 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 DTC P218500 is stored in temerature sender G83.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_2078939_2 | Service bulletin | Jun 30, 2026 | 11034669 |
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 10 model years this bulletin names have filed 76 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.
The vehicle at 13,xxx miles on the high ways, and during stop & go traffic; vehicle begins to tremble, transmission and floor shakes, rpms are higher than normal, abnormal noises coming from engine (screeching), jerking on acceleration on the first gears, rough idle, happens only on highways after 1hr of driving.
2021 Audi A4 · Engine · filed with NHTSA Apr 1, 2025
The contact owns a 2025 Audi A5. The contact stated that while driving approximately 45-50 MPH, the vehicle suddenly decelerated without warning to approximately 20 MPH. The contact activated the hazard lights and safely maneuvered the vehicle onto the shoulder of the roadway.
2025 Audi A5 · Engine · filed with NHTSA Jun 23, 2026
The contact owns a 2022 Audi A4. The contact stated that while driving 70 MPH, the vehicle stalled in the middle of the roadway and failed to restart. There was no warning light illuminated. The vehicle was towed to the used car dealer where it was purchased.
2022 Audi A4 · Engine · filed with NHTSA Mar 17, 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 group99 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_2082700_1 | Service bulletin | Jul 10, 2026 | This bulletin provides informaitonw hen there is a drive system fault; DTC P065C00, symptom 36565. |
| TSB_2074640_3 | Service bulletin | Jun 26, 2026 | This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km. |
| TSB_2080446_3 | Service bulletin | Jun 25, 2026 | This bulletin provides information when the exhaust emissions warning lamp lights up in the instrument cluster; DTC PC01C400… |
| TSB_2082335_1 | Service bulletin | Jun 24, 2026 | This Pending Service Solution (PSS) requests that technicians create a record in the PSS database when DTC P01C400 (symptom) 46314 is stored… |
| TSB_2082323_1 | Service bulletin | Jun 10, 2026 | This bulletin provides informaiton when the engine is not running smoothly, misfiring. |
| TSB_2082283_1 | Service bulletin | Jun 10, 2026 | This Pending Service Solution (PSS) requests that technicians create a record in the PSS databse in instances where DTC P1A7B00 is stored an… |
| TSB_2082225_1 | Service bulletin | Jun 10, 2026 | This Pending Service Solution (PSS) requests that technicians create a record in the PSS databse in instances where there is an exhaust emis… |
| TSB_2081098_3 | Service bulletin | Jun 10, 2026 | This Pending Service Solution (PSS) requests that technicians create a record in the PSS database in instances when side assist issues warni… |
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_2078939_2 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_2078939_2 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_2078939_2 cover?
The manufacturer filed it against 10 model years: 2025 Audi A4, 2024 Audi A4, 2023 Audi A4, 2022 Audi A4, 2021 Audi A4, 2025 Audi A5 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.