Mercedes-Benz bulletin LI06.10-P-076023
What it saysComplaint Customer reports illuminated CEL. NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Jan 5, 2026, received Apr 5, 2023, about the engine — 2 documents under this number. It names 10 model years (2016–2025). 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 Customer reports illuminated CEL. Additionally no start condition, lack of power, failure to recover from ECO stop, and/or poor acceleration. Cause • Under investigation Remedy Process FSCU and ME codes via guided test. Perform fuel pressure test on high and low pressure sides of system. Check and perform electrical testing from N118 X1 pin 1 to K40/5 S2 pin 1 Check from N118 X1 pin 2 to W10/1 with ignition on. Look for voltage drop. Check from N118 X2 pin 9 and 10 to X30/21 pin 1 and 2 and check CAN low/high voltages to see if in spec. Check for loose contacts at these pins and/or corrosion. Check resistance from N118 X1 pin 3,4,5,6 to X18/3 pin 1,4,3,2 and check for loose contacts and/or corrosion. Also pin drag and ensure within spec. Check and inspect all pins at X18/3 and perform wiggle test while monitoring AV. Ensure within spec. If all electrical tests pass. Open a TIPS case with the results from them as well as the fuel pressure tests.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI06.10-P-076023 | Service bulletin | Jan 5, 2026 | 11026961 | PDF, 38 KB |
| LI06.10-P-076023 | Service bulletin | Mar 15, 2023 | 10233781 | PDF, 37 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 10 model years this bulletin names have filed 40 complaints with NHTSA since 2015. 17 of them name Fuel/Propulsion System, 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.
My car’s check engine light came on and my vehicle shut off while I was driving at 40-45 mph on the highway. It has repeatedly done this. I contacted dealership immediately and was told there is a recall for my vehicle coming out on 08/25/2023. My vehicle isn’t safe to drive and they did not have a repair available or solution available.
2023 Mercedes-Benz G-Class · Fuel/Propulsion System · filed with NHTSA Aug 14, 2023 · ODI 11538437
My 2017 G550 misfired on a highway and I had total failure with kids in the backseat creating an immediate life-safety hazard. This issue was caused by the M176 engine, which is known to create misfires. Mercedes tried to blame it on me not changing my spark plus, but I showed proof they were changed with a certified Mercedes mechanic.
2017 Mercedes-Benz G-Class · Engine · filed with NHTSA Oct 27, 2026 · ODI 11773912
On this vehicle the oil pump-oil control valve has malfunctioned. The vehicle has 54000 miles on it and the repair costs $8500. The part is only $300 but the transmission must be removed to repair the vehicle. The safety of people is not compromised by the part. The malfunction has been confirmed by the dealer.
2020 Mercedes-Benz G-Class · Engine · filed with NHTSA Jan 11, 2026 · ODI 11710210
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 group22 other manufacturer communications filed against the Mercedes-Benz G-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… |
| NCU - 2026050002 | Service campaign | May 15, 2026 | Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2026 G-Class… |
| 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 - 2024100016 | Service campaign | Feb 28, 2026 | Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2021 G-Class, S-Class and GT… |
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 LI06.10-P-076023 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 LI06.10-P-076023 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 LI06.10-P-076023 cover?
The manufacturer filed it against 10 model years: 2025 Mercedes-Benz G-Class, 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 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.