Mercedes-Benz bulletin LI72.20-P-079685
What it saysComplaint Bulging and contact of the rear spoiler when hatch is opened (picture 1-1). NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Sep 16, 2025, received Sep 17, 2025, about the structure. It names 10 model years (2020–2025). 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 communicationComplaint Bulging and contact of the rear spoiler when hatch is opened (picture 1-1). When opening the rear hatch, the rear spoiler rests at the roof edge, which can result in damage to the rear spoiler and roof if the hatch is forcefully opened when the rear spoiler is bulged over (picture 1-2). Cause In the event of higher outside temperatures, the spoiler of the rear-end door thermally expands and may be above the roof by several millimeters. When opening the rear hatch when the rear spoiler is in a bulged condition, this can result in a collision between the rear spoiler and the roof edge. The cause may be related to fastening clips of the rear spoiler that have become loose. Remedy Remove rear spoiler, replace all fastening clips. Install rear spoiler again. In the event of damage, repair the vehicle. After assembly of the rear spoiler, check whether the clip is completely locked: When the rear-end door is open, press against the rear spoiler with your thumbs with around 5 kg of pressure (picture) 4). If it is possible to easily press the rear spoiler against the roof edge, the clip is not locked or may be damaged.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI72.20-P-079685 | Service bulletin | Sep 16, 2025 | 11023155 | PDF, 426 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| A0039905351 | Hexagon nut 4 Only W247: Self-locking nut, tighten | — | eBay Motors → |
| A1779890085 | Protective film 1 Only W247: Cut protective film accor | — | eBay Motors → |
Read by machine from the document NHTSA serves (4 pages), read Sep 30, 2026. A part number is shown only where it matches Mercedes-Benz’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the body for the 2025 EQB →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 269 complaints with NHTSA since 2015. 18 of them name Structure — 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.
NHTSA Recall 26V481 (Mercedes-Benz recall no. Interim owner notification letter dated September 18, 2026, titled "Replace Driver Door Lock." The micro-switch in the driver door lock may corrode and fail to detect an open driver door, which can prevent the electronic parking brake or "Auto-Park" feature from engaging automatically.
2023 Mercedes-Benz GLB-Class · Structure · filed with NHTSA Sep 23, 2026 · ODI 11766570
The contact owns a 2021 Mercedes-Benz GLB250. The contact stated that the front stationary roof panel detached from the vehicle and shattered. The vehicle was taken to the dealer but was not diagnosed or repaired.
2021 Mercedes-Benz GLB-Class · Structure · filed with NHTSA Aug 12, 2026 · ODI 11756454
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 group8 other manufacturer communications filed against these Mercedes-Benz models under the same component group (structure), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| LI82.62-P-078631 | Service bulletin | Sep 14, 2026 | Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all rem… |
| LI72.20-P-075746 | Service bulletin | Aug 24, 2026 | Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EX… |
| LI67.10-P-071418 | Service bulletin | May 13, 2026 | Complaint Wind noises in area along the top of windshield at speeds above 60mph. Cause Insufficient sealing between the windshield lip seal… |
| NCU - 2025070007 | Service campaign | Aug 2, 2025 | Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, a heat shield might not have… |
| LI88.60-P-072093 | Service bulletin | Jan 24, 2025 | Complaint Fuel door may require several attempts to open. Please note that if the complaint "Fuel filler flap not opening" occurs, it is imp… |
| LI72.20-P-078562 | Service bulletin | Jan 4, 2025 | Complaint Noises (creaking/squeaking) from liftgate lock while driving. Cause Under analysis Remedy 1. Grease liftgate lock at the marked po… |
| LI77.40-P-078469 | Service bulletin | Oct 3, 2024 | Complaint Customer complains of wind noises. Cause The cause is being clarified. Remedy If wind noises can be clearly attributed to the roof… |
| LI98.00-P-078106 | Service bulletin | Sep 10, 2024 | Complaint Damage or discoloration to paint protection films on vehicle. Cause Chip protection films are a wear item that may need to be repl… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Mercedes-Benz, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Mercedes-Benz LI72.20-P-079685 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 LI72.20-P-079685 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. Every Mercedes-Benz warranty extension on file lists the ones Mercedes-Benz has filed.
Which vehicles does LI72.20-P-079685 cover?
The manufacturer filed it against 10 model years: 2025 Mercedes-Benz EQB, 2024 Mercedes-Benz EQB, 2023 Mercedes-Benz EQB, 2022 Mercedes-Benz EQB, 2025 Mercedes-Benz GLB-Class, 2024 Mercedes-Benz GLB-Class and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.