Mercedes-Benz bulletin LI80.40-P-075378
What it saysComplaint The trunk lid is not latching into the closed position with the help of the trunk lid power closing function after the electric closing process. NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Jun 8, 2023, received Dec 5, 2022, about the structure — 3 documents under this number. It names 16 model years (2016–2023). 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 The trunk lid is not latching into the closed position with the help of the trunk lid power closing function after the electric closing process. There is a loud rattling from the trunk or from the trunk lid power closing unit (M14/31). Cause Under Analysis Remedy Please create a TIPS case before attempting repair on the vehicle ⢠Within case attach a video showing the concern ⢠Attach CUL for N121
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI80.40-P-075378 | Service bulletin | Jun 8, 2023 | 10238425 | PDF, 40 KB |
| LI80.40-P-075378 | Service bulletin | Feb 21, 2023 | 10232332 | PDF, 34 KB |
| LI80.40-P-075378 | Service bulletin | Nov 1, 2022 | 10227148 | not found |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| A0999067105 | Gear motor power closing | — | eBay Motors → |
Read by machine from the document NHTSA serves (2 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.
Find the trunk lid for the 2023 CLS-Class →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 themAlso filed against model years this site has no page for: 2021 Mercedes-Benz AMG E53 S; 2022 Mercedes-Benz AMG E63; 2022 Mercedes-Benz AMG E63S.
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 13 model years this bulletin names have filed 516 complaints with NHTSA since 2015. 101 of them name Electrical System, 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 contact owns a 2020 Mercedes-Benz CLS450. The contact received notification of NHTSA Campaign Number: 22V533000 (Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
2020 Mercedes-Benz CLS-Class · Electrical System · filed with NHTSA Aug 24, 2022 · ODI 11481015
Rear glass window on convertible soft top is prematurely separating/delaminating from top assembly on 2020 Mercedes-Benz E350 convertible with under 8,000 miles. Glass is integrated into the convertible top and failure may lead to reduced rear visibility, possible glass detachment, water intrusion, and safety hazard while driving.
2020 Mercedes-Benz E-Class · Structure · filed with NHTSA May 19, 2026 · ODI 11738921
The digital dash, which shows my speed, mileage, engine temperature, rims and fuel level goes blank. Then comes on for a few seconds and goes dark again. Vehicle only has 43k miles. MB dealer said this is not uncommon condition with the 2018 mb e400. Car is not safe to drive. MB dealer wants $6,100.00 to replace the unit.
2018 Mercedes-Benz E-Class · Electrical System · filed with NHTSA Sep 19, 2025 · ODI 11688398
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 group17 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… |
| 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 7/3 | Other | Jul 3, 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… |
| LI77.30-P-070145 | Service bulletin | Apr 28, 2026 | Complaint Damaged cords/tensioning cables at the soft top interior trim with the following characteristics: - Cord/tensioning cable torn - C… |
| LI68.30-P-080466 | Service bulletin | Apr 24, 2026 | Complaint Clattering sound in B-pillar trim Cause Play between substructure and B-pillar trim Remedy Installing a 70x15x3 mm felt strip next… |
| PSL-NCU Return Parts 4/17 | Other | Apr 17, 2026 | The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The de… |
| LI68.30-P-080465 | Service bulletin | Apr 13, 2026 | Complaint Clattering noise at seat belt height adjuster in B-pillar trim Cause Play between seat belt adjuster and guide rail Remedy Install… |
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 LI80.40-P-075378 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 LI80.40-P-075378 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 LI80.40-P-075378 cover?
The manufacturer filed it against 16 model years: 2023 Mercedes-Benz CLS-Class, 2022 Mercedes-Benz CLS-Class, 2021 Mercedes-Benz CLS-Class, 2020 Mercedes-Benz CLS-Class, 2019 Mercedes-Benz CLS-Class, 2023 Mercedes-Benz E-Class and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.