Audi bulletin Bulletin 51H9
What it saysThe paint drain hole on the front left of the underbody was not sealed due to a change in components. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Jun 22, 2023, received Jul 10, 2023, about the structure. It names 5 model years (2022). 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 communicationThe paint drain hole on the front left of the underbody was not sealed due to a change in components. As a result, water may enter the vehicle interior at the front left through this paint drain hole. The underbody must be sealed on the affected vehicles and a check must be performed to determine whether water has entered the vehicle/underbody.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| Bulletin 51H9 | Service bulletin | Jun 22, 2023 | 10238242 | PDF, 615 KB |
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 5 model years this bulletin names have filed 36 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.
More bulletins about the structure
Source: same model, same component group115 other manufacturer communications filed against these Audi models under the same component group (structure), newest first. The eight newest are listed; the rest are on the Audi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_2078648_4 | Service bulletin | Sep 18, 2026 | This bulletin provides information about billing for a broken sunroof glass panel. |
| TSB_2079747_3 | Service bulletin | Sep 17, 2026 | This bulletin provides information regarding various complaints about front or rear door locks. |
| TSB_2073860_2 | Service bulletin | Sep 14, 2026 | This bulletin provides information when there are stails/marks on the sill panel trim. |
| TSB_2068999_5 | Service bulletin | Sep 8, 2026 | This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases. |
| TSB_2068999_4 | Service bulletin | Aug 21, 2026 | This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases. |
| TSB_2076945_2 | Service bulletin | Aug 20, 2026 | This bulletin provides information about leather care and seat repair. |
| TSB_2078648_3 | Service bulletin | Aug 4, 2026 | This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel. |
| TSB_2071697_3 | Service bulletin | Jul 16, 2026 | This bulletin provides information when there is an insufficient gap width between the tank flap and the side panel. |

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 Bulletin 51H9 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 Bulletin 51H9 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 Bulletin 51H9 cover?
The manufacturer filed it against 5 model years: 2022 Audi Q7, 2022 Audi Q8, 2022 Audi RS Q8, 2022 Audi SQ7, 2022 Audi SQ8. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.