Mercedes-Benz bulletin LI91.18-P-077075
What it saysCrease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats for extended periods of time (pressure marks). ⢠Objects wedged between the seat backrest and seat cushion… NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Dec 4, 2023, received Jan 3, 2024, about the seats. It names 169 model years (2016–2024). 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 communicationCrease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats for extended periods of time (pressure marks). ⢠Objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle). ⢠Light initial creases due to vehicle handling. ⢠Light creases in the outer covers originating from the production process (missing finish). Heat treatment of the seat covers using heat gun and plastic wedge. Be very careful to not overheat the seat material!
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI91.18-P-077075 | Service bulletin | Dec 4, 2023 | 10248162 | PDF, 39 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 themand 92 more on this site: 2017 Mercedes-Benz CLS-Class, 2016 Mercedes-Benz CLS-Class, 2024 Mercedes-Benz E-Class, 2023 Mercedes-Benz E-Class, 2022 Mercedes-Benz E-Class, 2021 Mercedes-Benz E-Class, 2020 Mercedes-Benz E-Class, 2019 Mercedes-Benz E-Class, 2018 Mercedes-Benz E-Class, 2017 Mercedes-Benz E-Class, 2016 Mercedes-Benz E-Class, 2023 Mercedes-Benz EQB, 2022 Mercedes-Benz EQB, 2024 Mercedes-Benz EQE, 2023 Mercedes-Benz EQE, 2024 Mercedes-Benz EQS, 2023 Mercedes-Benz EQS, 2022 Mercedes-Benz EQS, 2024 Mercedes-Benz G-Class, 2023 Mercedes-Benz G-Class, 2022 Mercedes-Benz G-Class, 2021 Mercedes-Benz G-Class, 2020 Mercedes-Benz G-Class, 2019 Mercedes-Benz G-Class, 2018 Mercedes-Benz G-Class, 2017 Mercedes-Benz G-Class, 2016 Mercedes-Benz G-Class, 2016 Mercedes-Benz GL-Class, 2024 Mercedes-Benz GLA-Class, 2023 Mercedes-Benz GLA-Class, 2022 Mercedes-Benz GLA-Class, 2021 Mercedes-Benz GLA-Class, 2020 Mercedes-Benz GLA-Class, 2019 Mercedes-Benz GLA-Class, 2018 Mercedes-Benz GLA-Class, 2017 Mercedes-Benz GLA-Class, 2016 Mercedes-Benz GLA-Class, 2024 Mercedes-Benz GLB-Class, 2023 Mercedes-Benz GLB-Class, 2022 Mercedes-Benz GLB-Class, 2021 Mercedes-Benz GLB-Class, 2020 Mercedes-Benz GLB-Class, 2024 Mercedes-Benz GLC-Class, 2023 Mercedes-Benz GLC-Class, 2022 Mercedes-Benz GLC-Class, 2021 Mercedes-Benz GLC-Class, 2020 Mercedes-Benz GLC-Class, 2019 Mercedes-Benz GLC-Class, 2018 Mercedes-Benz GLC-Class, 2017 Mercedes-Benz GLC-Class, 2016 Mercedes-Benz GLC-Class, 2024 Mercedes-Benz GLE-Class, 2023 Mercedes-Benz GLE-Class, 2022 Mercedes-Benz GLE-Class, 2021 Mercedes-Benz GLE-Class, 2020 Mercedes-Benz GLE-Class, 2019 Mercedes-Benz GLE-Class, 2018 Mercedes-Benz GLE-Class, 2017 Mercedes-Benz GLE-Class, 2016 Mercedes-Benz GLE-Class, 2024 Mercedes-Benz GLS-Class, 2023 Mercedes-Benz GLS-Class, 2022 Mercedes-Benz GLS-Class, 2021 Mercedes-Benz GLS-Class, 2020 Mercedes-Benz GLS-Class, 2019 Mercedes-Benz GLS-Class, 2018 Mercedes-Benz GLS-Class, 2017 Mercedes-Benz GLS-Class, 2016 Mercedes-Benz GLS-Class, 2024 Mercedes-Benz S-Class, 2023 Mercedes-Benz S-Class, 2022 Mercedes-Benz S-Class, 2021 Mercedes-Benz S-Class, 2020 Mercedes-Benz S-Class, 2019 Mercedes-Benz S-Class, 2018 Mercedes-Benz S-Class, 2017 Mercedes-Benz S-Class, 2016 Mercedes-Benz S-Class, 2024 Mercedes-Benz SL-Class, 2023 Mercedes-Benz SL-Class, 2022 Mercedes-Benz SL-Class, 2020 Mercedes-Benz SL-Class, 2019 Mercedes-Benz SL-Class, 2018 Mercedes-Benz SL-Class, 2017 Mercedes-Benz SL-Class, 2016 Mercedes-Benz SL-Class, 2020 Mercedes-Benz SLC-Class, 2019 Mercedes-Benz SLC-Class, 2018 Mercedes-Benz SLC-Class, 2017 Mercedes-Benz SLC-Class, 2016 Mercedes-Benz SLC-Class, 2016 Mercedes-Benz SLK-Class.
Also filed against model years this site has no page for: 2018 Mercedes-Benz A 220; 2020 Mercedes-Benz AMG A45; 2022 Mercedes-Benz AMG C63 S; 2021 Mercedes-Benz AMG E53 S; 2023 Mercedes-Benz AMG E53E; 2022 Mercedes-Benz AMG E63; 2022 Mercedes-Benz AMG E63S; 2017 Mercedes-Benz AMG GT C Roadster; 2020 Mercedes-Benz AMG GT S; 2020 Mercedes-Benz AMG GT43; 2024 Mercedes-Benz AMG GT53E; 2022 Mercedes-Benz AMG GT63; 2022 Mercedes-Benz AMG GT63 S; 2018 Mercedes-Benz AMG GTA; 2022 Mercedes-Benz AMG SL43; 2024 Mercedes-Benz AMG SL53E; 2024 Mercedes-Benz AMG SL63 S E; 2019 Mercedes-Benz AMG SL65; 2018 Mercedes-Benz B 160; 2019 Mercedes-Benz B 180; 2019 Mercedes-Benz B 200; 2019 Mercedes-Benz B 220; 2018 Mercedes-Benz B 250E; 2016 Mercedes-Benz B160; 2017 Mercedes-Benz B160; 2023 Mercedes-Benz CLE 300; 2023 Mercedes-Benz CLE 450; 2016 Mercedes-Benz CLE 63S; 2020 Mercedes-Benz EQC 400; 2021 Mercedes-Benz EQC 400 E; 2017 Mercedes-Benz GL350; 2017 Mercedes-Benz GL450; 2017 Mercedes-Benz GL550; 2018 Mercedes-Benz S 550; 2019 Mercedes-Benz S 550; 2020 Mercedes-Benz S 550; 2017 Mercedes-Benz SLK 350.
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 132 model years this bulletin names have filed 4,355 complaints with NHTSA since 2015. 7 of them name Seats — 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.
girl went in back passenger door (rear facing car seat present), crouched under seat area to climb to middle seat when brother push button and seat moved forward without stopping crushing old head between back of seat and back of Car seat. There was no safety stop, was stuck mother has to press button to move seat back to release head
2024 Mercedes-Benz GLS-Class · Seats · filed with NHTSA Jun 9, 2026 · ODI 11743087
1)The side cover on the driver’s seat covering the seatbelt harness area detaches from the seat. The defect has been shown to the Mercedes dealer, Autohaus on Eden of Northbrook, IL several times. The dealer refuses to fix it. 2) The wheel hubcaps fly off during a normal drive of 30 mph risking injuries to other vehicles.
2020 Mercedes-Benz AMG GT · Seats · filed with NHTSA Apr 25, 2022 · ODI 11462109
I was driving around and my daughter was complaining that the seat was getting super hot . I told her to stop playing with the seat warmer she then replied she was not . I kept driving and then she again told me it was burning her so i pulled over and saw that her leg was super red and i saw the seat was pretty melted .
2017 Mercedes-Benz GLS-Class · Seats · filed with NHTSA Jul 2, 2026 · ODI 11748048
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 seats
Source: same model, same component group16 other manufacturer communications filed against these Mercedes-Benz models under the same component group (seats), newest first. The eight newest are listed; the rest are on the Mercedes-Benz list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| LI91.10-P-080683 | Service bulletin | Jun 12, 2026 | Complaint Customer reports a squeaking or creaking sound (See Example) originating from the lower front seat area. This sound may occur unde… |
| LI91.16-P-073576 | Service bulletin | May 20, 2026 | Complaint • Driver's seat and/or front passenger seat cannot be adjusted. • Not possible to adjust front seats to memory preset. • Head rest… |
| LI91.10-P-076097 | Service bulletin | May 19, 2026 | Complaint Play/noise at height adjuster or in seat guide rail on front seats Cause Tolerances and variations in the manufacturing process Re… |
| LI91.29-P-080554 | Service bulletin | May 15, 2026 | Complaint One or more seat functions are restricted or inoperative. This may include: • Seat memory • Automatic seat adjustment • Easy Entry… |
| LI91.29-P-079178 | Service bulletin | Apr 8, 2026 | Complaint After opening the driver's door, the seat can no longer be moved using the Memory button. Adjustment via the seat adjustment switc… |
| LI91.10-P-080033 | Service bulletin | Apr 8, 2026 | Complaint The seat cushion upholstery is visible when the seat cushion fore/aft adjustment (SKTV) is completely extended. Cause The stretch… |
| LI91.10-P-078305 | Service bulletin | Mar 26, 2026 | Complaint The "easy entry and exit feature" function deactivates itself after a brief period. (see attachment) Cause The cause is currently… |
| LI91.10-P-079346 | Service bulletin | Jul 31, 2025 | Complaint The customer complains about squeaking/creaking noises on uneven roadways, on bends or when moving in their seat. Cause Noise in t… |
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 LI91.18-P-077075 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 LI91.18-P-077075 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 LI91.18-P-077075 cover?
The manufacturer filed it against 169 model years: 2022 Mercedes-Benz A-Class, 2021 Mercedes-Benz A-Class, 2020 Mercedes-Benz A-Class, 2019 Mercedes-Benz A-Class, 2024 Mercedes-Benz AMG GT, 2023 Mercedes-Benz AMG GT and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.