Audi bulletin DC_Q4 e-ton
What it saysDue to a software concern in ME4.0/4.1, concerns with the 12V batteries on Q4 e-tron 12V have been reported. NHTSA’s full summary ↓
Audi filed this with NHTSA as a manufacturer communication dated Jun 25, 2024, received Jul 2, 2024 — 2 documents under this number. It names 2 model years (2024–2025). A manufacturer communication 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 communicationDue to a software concern in ME4.0/4.1, concerns with the 12V batteries on Q4 e-tron 12V have been reported. These complaints occur only in transport mode. Before customer delivery, the 12V battery is automatically charged via the HV battery. The software concern should be fixed in calendar week 25/24.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| DC_Q4 e-ton | Other | Jun 25, 2024 | 11003010 | |
| DC_Q4 e-ton | Other | Jun 25, 2024 | 11002941 |
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 2 model years this bulletin names have filed 35 complaints with NHTSA since 2015.
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.
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 DC_Q4 e-ton a recall?
No. A manufacturer communication 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 DC_Q4 e-ton 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 DC_Q4 e-ton cover?
The manufacturer filed it against 2 model years: 2025 Audi Q4 e-tron, 2024 Audi Q4 e-tron. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.