Mercedes-Benz bulletin LI07.61-P-077382
What it saysCustomer states check engine light is on ME Software Software is available to correct this issue. NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Jan 22, 2024, received Feb 1, 2024, about the engine. It names 4 model years (2022–2024). 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 communicationCustomer states check engine light is on ME Software Software is available to correct this issue. Review the software numbers at the end of this text. If none of the software numbers match what is on the vehicle: update the software, clear any codes and release the vehicle. If no update is available: create a TIPS case If one of the software number pairs match what is on the vehicle and P231A00 is present: create a TIPS case SOFTWARE NUMBERS: All variants will have HW ID: A1779010606 OLD NEW A1779022919 --> A1779023119 A1779039507 --> A1779033009 A1779039607 --> A1779033109 A1779039707 --> A1779033209
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI07.61-P-077382 | Service bulletin | Jan 22, 2024 | 10249505 | PDF, 38 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 themAlso filed against model years this site has no page for: 2024 Mercedes-Benz AMG SL63 S E.
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 3 model years this bulletin names have filed 10 complaints with NHTSA since 2015. 4 of them name Engine — 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 leased a 2022 Mercedes-Benz AMG SL55. The contact stated while driving approximately 55 MPH, the vehicle unintendedly decelerated and stalled. There was no warning light illuminated. After restarting the vehicle, the vehicle operated normally and was later driven to the residence.
2022 Mercedes-Benz SL-Class · Engine · filed with NHTSA Oct 8, 2025 · ODI 11692149
When driven on the highway, speed drops abruptly down (65 mph to 40 mph) stuck on 4 or 3rd gear in this automatic 9 speed transmission and gear won't shift up causing engine rpm rise over 3000 & gas pedal won't have effect even it was pushed down to floor all the way.
2022 Mercedes-Benz SL-Class · Engine · filed with NHTSA Jun 4, 2024 · ODI 11592322
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 engine
Source: same model, same component group19 other manufacturer communications filed against these Mercedes-Benz models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Mercedes-Benz list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| LI01.20-P-080884 | Service bulletin | Aug 12, 2026 | Complaint Oil leaks found on M176 or M177 engines diagnosed to be from the cylinder head cover area Cause Unknown (under investigation) Reme… |
| LI07.10-P-080384 | Service bulletin | Aug 7, 2026 | Complaint Customer reports Check Engine Light with possible loss of power concern. The Following DTC's are present • P210185 - The throttle… |
| LI20.10-P-072886 | Service bulletin | Jul 24, 2026 | Complaint Check Engine Light ON with DTC P012800 "The Coolant Temperature is Below the Specified Temperature" active and/or stored in the ME… |
| LI07.70-P-078293 | Service bulletin | Apr 9, 2026 | Complaint Customer states CEL ON with no drivability complaints Cause The following DTC is active and/or stored in the ME (N3/10) due to sig… |
| CL - EW M157 | Other | Mar 27, 2026 | Dear Mercedes-Benz Owner: In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfacti… |
| EW - Vacuum Pump M157 | Warranty extension | Mar 14, 2026 | In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Merce… |
| NCU - 2026020005 | Service campaign | Feb 28, 2026 | Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the control unit software for… |
| CL - 2025040001 | Other | Feb 20, 2026 | Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has decided that on certain model year 2023 C-Class, G-Class and SL vehicles… |
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 LI07.61-P-077382 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 LI07.61-P-077382 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 LI07.61-P-077382 cover?
The manufacturer filed it against 4 model years: 2024 Mercedes-Benz SL-Class, 2023 Mercedes-Benz SL-Class, 2022 Mercedes-Benz SL-Class, 2024 Mercedes-Benz AMG SL63 S E. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.