Mercedes-Benz bulletin LI07.70-P-080607
What it saysComplaint Check engine light activated. NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Jun 3, 2026, received Jun 4, 2026, about the engine. It names 4 model years (2023–2026). 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 Check engine light activated. Fault codes related to misfire on multiple cylinders stored. Possible fault codes listed below: P030004 - Combustion misfiring has been detected. There is an internal fault. P030100 - Combustion misfiring of cylinder 1 has been detected P030200 - Combustion misfiring of cylinder 2 has been detected P030300 - Combustion misfiring of cylinder 3 has been detected P030400 - Combustion misfiring of cylinder 4 has been detected P030500 - Combustion misfiring of cylinder 5 has been detected P030600 - Combustion misfiring of cylinder 6 has been detected P031600 - Combustion misfires were detected at engine start. Cause Under analysis Remedy Note: If the vehicle has a single cylinder misfiring or a constant misfire, diagnose the cause of this separately. This LI document is not relevant in this scenario. Collect details from the vehicle owner: • What did the driver experience/feel when the CEL activated? • What is the driving scenario when the symptom occurs? (i.e. time of day, vehicle speed, electric driving/ICE driving, etc.) • How often has this symptom been experienced? • How often is the vehicle recharged and driven in electric mode? • When was the last time the fuel tank was refueled, brand, quality of fuel? Save document from the vehicle: • Initial quick test with freeze frame data • Control unit log from Engine control unit N3/10 • Control unit log from Powertrain control unit N127 • HV system control unit log Additional steps: 1. Perform test drive and attempt to reproduce symptom as described by owner 2. Capture a fuel sample and check for abnormal condition or ethanol content 3. Create a TIPS case with the powertrain team and include all above information/documents and any additional observations.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI07.70-P-080607 | Service bulletin | Jun 3, 2026 | 11033386 | 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 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 4 model years this bulletin names have filed 17 complaints with NHTSA since 2015.
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 group25 other manufacturer communications filed against the Mercedes-Benz S-Class 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… |
| Emissions - 2024100016 | Emissions | Jul 24, 2026 | Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2021 C-Class, G-Class, GLC, GT, S-Class… |
| LI07.61-P-080241 | Service bulletin | Jun 11, 2026 | Complaint CEL ON with DTC P061197 "the control unit fuel injector has a malfunction output stage fault of control unit is restricted" active… |
| Emissions - 2026020006 | Emissions | Apr 24, 2026 | Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles equipped with an 8-cylinder en… |
| 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… |
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 LI07.70-P-080607 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 LI07.70-P-080607 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.
Which vehicles does LI07.70-P-080607 cover?
The manufacturer filed it against 4 model years: 2026 Mercedes-Benz S-Class, 2025 Mercedes-Benz S-Class, 2024 Mercedes-Benz S-Class, 2023 Mercedes-Benz S-Class. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.