Mercedes-Benz bulletin LI54.10-P-080053
What it saysComplaint Discharge of 12 V battery in the event of a longer non-operational time - model series 232 and model series 192 Cause Increased quiescent current Remedy 1. NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Jun 16, 2026, received Dec 3, 2025, about the electrical system — 4 documents under this number. It names 12 model years (2022–2026). 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 Discharge of 12 V battery in the event of a longer non-operational time - model series 232 and model series 192 Cause Increased quiescent current Remedy 1. Conduct quiescent current measurement. DO NOT USE A DVOM IN LINE - this will blow the fuse in your meter. Use an amp clamp with either a DVOM or XENTRY Scope and wait until the vehicle has gone to sleep (usually takes 6-10 minutes). Once the vehicle is asleep, observe the quiescent current for 10-15 minutes and note down the values. A stable quiescent current should be less than 50 mA. Values higher than this figure are considered not OK (NOK) and require further analysis. 2. If the quiescent current is higher (> 50 to 100 mA): • Check whether software updates are available for relevant control units: Door control units (DMD (N69/1), DMP (N69/2), DMRL (N69/3), DMRR (N69/4)), EIS (N73/3), PTCU (N127), OHCM (N70), GW (N73/3*1) • After installing the updates: measure the quiescent current again • If the quiescent current is < 50 mA, the vehicle is OK • If the quiescent current is between 50 and 100 mA, continue with step 5 • If the quiescent current is between 100 and 200 mA, continue with step 3 • If the quiescent current is between 200 mA and 1 A, continue with step 4 3. For no-load current values of 100 to 200 mA: • Lock all doors and hood so that the control unit recognizes the door status as "closed" but the doors are open. • Disconnect door separation points (A-pillar connection) when the vehicle is asleep, starting with the driver's side • Document the quiescent current value • If there is no change: Disconnect the door separation point on the front passenger side and note down the value again • If the quiescent current falls below 50 mA after the door separation point is opened, the respective outer door handle must be replaced • If the quiescent current drops below 50mA, the draw has been addressed and the vehicle can be released • If the quiescent current remains above 50mA after the relevant door handles have been successfully replaced, please create a TIPS case to the LV/HV inbox and retain the removed door handles for the time being • If the quiescent current does not change after the door separation point is opened, please carry out step 5 4. For quiescent current values between 200 mA and 1 A: • Important: Before pulling out F320 and F304, the tow-away protection and interior protec
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI54.10-P-080053 | Service bulletin | Jun 16, 2026 | 11033927 | PDF, 39 KB |
| LI54.10-P-080053 | Service bulletin | Feb 19, 2026 | 11028906 | PDF, 39 KB |
| LI54.10-P-080053 | Service bulletin | Dec 3, 2025 | 11026117 | PDF, 40 KB |
| LI54.10-P-080053 | Service bulletin | Dec 3, 2025 | 11026030 | 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 themAlso filed against model years this site has no page for: 2024 Mercedes-Benz AMG GT63 S E; 2026 Mercedes-Benz AMG GT63 S E Performance 4MATIC+; 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 9 model years this bulletin names have filed 17 complaints with NHTSA since 2015. 7 of them name Electrical System — 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 mom and I were in her car brand new Mercedes adaptive cruise was on the car started to act up with all the warning lights again, which shut all safety systems down air back seatbelts, adaptive cruise, Tronics and the engine wall between 18 wheeler and the freeway wall slammed the vehicle into the freeway hall causing about $5000 worth…
2023 Mercedes-Benz SL-Class · Electrical System · filed with NHTSA Jan 21, 2025 · ODI 11637467
The contact owns a 2022 Mercedes-Benz AMG SL55. The contact stated that upon entering the vehicle, the vehicle failed to detect the presence of the key, after which the vehicle failed to start. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to determine the cause of the failure.
2022 Mercedes-Benz SL-Class · Electrical System · filed with NHTSA Aug 19, 2024 · ODI 11609466
The electrical systems drains the two batteries after the car sits idle for a few hours. If it can be started, many of the safety features are inoperable until the car is driven for 30 or 40 minutes. I've had it to multiple Mercedes dealers and all they do is re-charge the battery and told me to get a trickle charger.
2022 Mercedes-Benz SL-Class · Electrical System · filed with NHTSA Sep 10, 2025 · ODI 11686246
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 electrical system
Source: same model, same component group105 other manufacturer communications filed against these Mercedes-Benz models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Mercedes-Benz list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| LI54.30-P-080963 | Service bulletin | Sep 17, 2026 | Complaint Issue after OTA Update IC Odometer Reading blank("_ _ _ _") IC Maintanence data unavailable Cause OTA Update E61.0 Remedy In the I… |
| LI54.71-P-079104 | Service bulletin | Sep 11, 2026 | Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the foll… |
| LI54.21-P-080326 | Service bulletin | Sep 9, 2026 | Complaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167, 465: SW has been released. Update the FSAM to th… |
| LI82.85-P-079088 | Service bulletin | Aug 14, 2026 | Complaint The following most common complaints may be observed: • Brief connectivity interruptions when using Apple CarPlay over Wi-Fi • Aud… |
| LI54.65-P-080132 | Service bulletin | Aug 12, 2026 | Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist… |
| LI54.10-P-080880 | Service bulletin | Aug 12, 2026 | Complaint Customer Complaint: - AC charging is not possible. - The departure time, charging pause, location-based charging or target SOC lim… |
| LI82.60-P-080806 | Service bulletin | Aug 4, 2026 | Complaint After an "Over the Air" update (OTA), FM or SDARS radio reception is limited; only a few stations are found. Cause The firmware in… |
| LI46.10-P-078012 | Service bulletin | Jul 17, 2026 | Complaint Hand detection system – malfunction / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist no… |
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 LI54.10-P-080053 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 LI54.10-P-080053 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 LI54.10-P-080053 cover?
The manufacturer filed it against 12 model years: 2026 Mercedes-Benz AMG GT, 2025 Mercedes-Benz AMG GT, 2024 Mercedes-Benz AMG GT, 2023 Mercedes-Benz AMG GT, 2026 Mercedes-Benz SL-Class, 2025 Mercedes-Benz SL-Class and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.