Mercedes-Benz bulletin LI88.30-N-078036
What it saysComplaint T57 Electric step inoperative with warning on cluster. NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Jul 14, 2024, received Aug 3, 2024, about the electrical system. It names 6 model years (2019–2024). 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 communicationComplaint T57 Electric step inoperative with warning on cluster. Cause Possible damage to end position sensors.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI88.30-N-078036 | Service bulletin | Jul 14, 2024 | 11005575 | PDF, 300 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| A9069820100 | Sensor harness with both sen | — | eBay Motors → |
| A9069820000 | Single sensor 1 If only one sensor is damaged. X | — | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 885460 | MICROSWITCH OF STEP REMOVE/ INSTALL AND, IF NECESSARY, RE- PLACE | 1.7 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Mercedes-Benz’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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 6 model years this bulletin names have filed 385 complaints with NHTSA since 2015. 74 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.
The contact owns a 2020 Mercedes-Benz Sprinter 3500. The contact received notification of NHTSA Campaign Number: 22V360000 (Electrical System, Communication) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
2020 Mercedes-Benz Sprinter · Electrical System · filed with NHTSA Sep 9, 2022 · ODI 11483702
Charging issue with house battery side of class B camping van. It became somewhat apparent the system was not charging properly and quickly escalated to a high overcharge situation, followed by evidence of electrical short in smells and possible smoke in engine bay. The car was in for service for a month and a half.
2022 Mercedes-Benz Sprinter · Electrical System · filed with NHTSA Jan 30, 2025 · ODI 11639645
The active distance assist inoperative appears when using the cruise control. This comes on when no traffic in front of the vehicle for 1 hour or less. Also Active Brake Assist functions limited - see operators Manual To reset: follow another vehicle for 5 minutes. This is Very Very Very frustrating and UNSAFE.
2019 Mercedes-Benz Sprinter · Electrical System · filed with NHTSA Nov 10, 2024 · ODI 11624407
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 group3 other manufacturer communications filed against the Mercedes-Benz Sprinter under the same component group (electrical system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 2025080008 | Service campaign | Sep 4, 2025 | MBAG has determined the software of the control unit for the anti-theft warning system does not correspond to the current production configu… |
| LI49.20-N-079157_6 | Service bulletin | Jun 24, 2025 | Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Adblue System: •P20F… |
| LI47.70-N-079422_1 | Service bulletin | Jun 12, 2025 | HV battery is not charging to its full capacity with restricted maximum SoC Complaint The vehicle's HV battery is not charging to its full c… |
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 LI88.30-N-078036 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 LI88.30-N-078036 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 LI88.30-N-078036 cover?
The manufacturer filed it against 6 model years: 2024 Mercedes-Benz Sprinter, 2023 Mercedes-Benz Sprinter, 2022 Mercedes-Benz Sprinter, 2021 Mercedes-Benz Sprinter, 2020 Mercedes-Benz Sprinter, 2019 Mercedes-Benz Sprinter. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.