Mercedes-Benz bulletin LI65.10-P-074275
What it saysComplaint A) Wind noise in area of rear edge of rear fixed element of panoramic sliding sunroof (EPC item 78/150/550) at speeds over approx. 75mph (Picture I) B) Wind noise in area of rear edge of rear fixed element… NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Mar 11, 2025, received Mar 12, 2025, about the structure. It names 6 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 communicationComplaint A) Wind noise in area of rear edge of rear fixed element of panoramic sliding sunroof (EPC item 78/150/550) at speeds over approx. 75mph (Picture I) B) Wind noise in area of rear edge of rear fixed element of panoramic sliding sunroof (EPC item 78/150/550) at speeds over approx. 120mph (Picture I) Cause Below are potential causes for the complaint. A) Lifting and vibrating of sealing lip of rear roof paneling (EPC item 65/015/310) on outer left and right, at the contact surface with the end cap of the drip rail (EPC item 69/060/250) B) Lifting and vibrating of sealing lip of rear roof paneling (EPC item 65/015/310) in the center of the vehicle (Y=0), at the contact surface with the rear fixed element of the panoramic sliding sunroof (EPC item 78/150/550) Identification of source of noise by masking off of (Picture II): A) Joint between drip rail (EPC item 69/060/250), rear roof paneling (EPC item 65/015/300) and rear fixed element of panoramic sliding sunroof (EPC item 78/150/550) B) Joint between sealing lip of rear roof paneling (EPC item 65/015/310) and rear fixed element of panoramic sliding sunroof (EPC item 78/150/550), with approx. 5 cm-long adhesive strip - CAUTION: Sealing lip is very sensitive, do not damage! Remedy A1) Sealing lip (EPC item 65/015/310) is mounted OVER the end cap of the drip rail (EPC item 69/060/250) (Picture III): Carefully push sealing lip under the end cap of the drip rail using a wide plastic wedge A2) Sealing lip (EPC item 65/015/310) is mounted UNDER the end cap of the drip rail (EPC item 69/060/250) (Picture III): Trim sealing lip in extension of glass edge of rear fixed element for panoramic sliding sunroof (EPC item 78/150/550) (Picture IV) B) Replace sealing lip (EPC item 65/015/310); to do so, the rear roof paneling (EPC item 65/015/300) must be removed (attempt to remove the rear roof paneling without damaging it; only replace if damaged) NOTE: Before starting the repair, please ensure that the parts are available in the workshop!
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI65.10-P-074275 | Service bulletin | Mar 11, 2025 | 11015564 | PDF, 814 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| A1767800300 | ROOF COVER REP.KIT, rear | — | eBay Motors → |
| A2236503900 | PANELING SEAL.KIT, rear 1 Only for remedy B) X | — | eBay Motors → |
| A2236504000 | ROOF PANELING, rear As nee | — | eBay Motors → |
| A2236504100 | ROOF PANELING, rear As nee | — | 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.
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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.
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Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2024 Mercedes-Benz AMG S 63 E 4MATIC+.
A 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 98 complaints with NHTSA since 2015. 2 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.
The sunroof shattered suddenly while driving. There was no external impact to the vehicle
2023 Mercedes-Benz S-Class · Structure · filed with NHTSA Jan 14, 2026 · ODI 11710828
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 group14 other manufacturer communications filed against these Mercedes-Benz models under the same component group (structure), newest first. The eight newest are listed; the rest are on the Mercedes-Benz list.
| 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… |
| PSL-NCU Return Parts 9/04 | Other | Sep 5, 2026 | Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be ret… |
| 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… |
| LI72.00-P-080885 | Service bulletin | Aug 14, 2026 | Complaint The Dark Chrome finish on the retractable door handle appears discolored, stained, or faded. The discoloration is typically visibl… |
| PSL-NCU Return Parts 5/22 | Other | May 22, 2026 | Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be ret… |
| LI72.20-P-080324 | Service bulletin | Apr 24, 2026 | Complaint Trunk lid lock may not unlock when the trunk lid handle (S88/8) is operated The trunk lid can still be opened using the following… |
| LI80.20-P-078308 | Service bulletin | Mar 23, 2026 | Complaint Depending on the identified problem (items 1-4), please implement the corresponding Remedy below (items 1-4): 1. KeylessGo sensor… |
| 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… |
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 LI65.10-P-074275 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 LI65.10-P-074275 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 LI65.10-P-074275 cover?
The manufacturer filed it against 6 model years: 2025 Mercedes-Benz S-Class, 2024 Mercedes-Benz S-Class, 2023 Mercedes-Benz S-Class, 2022 Mercedes-Benz S-Class, 2021 Mercedes-Benz S-Class, 2024 Mercedes-Benz AMG S 63 E 4MATIC+. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.