Mercedes-Benz bulletin LI46.35-P-079817
What it saysComplaint Cracking noises are audible from the area of the electric steering gear with full steering movement (i.e. when the wheel is turned to full lock). NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Sep 26, 2025, received Sep 29, 2025, about the suspension. It names 4 model years (2022–2025). 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 Cracking noises are audible from the area of the electric steering gear with full steering movement (i.e. when the wheel is turned to full lock). Cause The vehicles have a function that electronically limits the steering movement. In isolated cases, e.g. following a toe adjustment, the steering limitations can be taught in incorrectly; this results in a metallic cracking noise occurring when turning the steering wheel to the point of full steering movement, due to the mechanical end stops being reached; see video. Remedy For the steering limitations in electrical power steering control unit N68, perform the procedure Reset value for 'straight-ahead position of the steering wheel' with XENTRY in the "Adaptations" tab under "Teach-in processes" and reteach in the steering limitations. Teach-in process for the steering limitations: 1. Vehicle is stationary, engine is switched on 2. With XENTRY Diagnosis connected, open the "Actual values" menu in electrical power steering control unit N68 3. Turn the steering wheel all the way to the left to full lock and hold it there – then slowly press the steering wheel further to the left until the "Steering wheel torque" value (observe actual values in XENTRY) is approx. 10–15 Nm – the actual value "Left steering limitation "Partially learned"" is displayed 4. Bring the steering wheel into the center position 5. Turn the steering wheel all the way to the right to full lock and hold it there – then slowly press the steering wheel further to the right until the "Steering wheel torque" value (observe actual values in XENTRY) is approx. 10–15 Nm – the actual value "Right steering limitation "Partially learned"" is displayed 6. Bring the steering wheel into the center position – actual values of the steering limitations are displayed as "Fully learned" – see note!
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI46.35-P-079817 | Service bulletin | Sep 26, 2025 | 11023371 | 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 4 model years this bulletin names have filed 128 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 suspension
Source: same model, same component group2 other manufacturer communications filed against the Mercedes-Benz EQS under the same component group (suspension), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| LI33.20-P-078406 | Service bulletin | Jul 8, 2026 | Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling… |
| LI46.35-P-076566 | Service bulletin | Mar 10, 2025 | Complaint A squeaking noise comes from the electric power steering; see video with example. Cause Toothed rack in the area of the screw driv… |
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 LI46.35-P-079817 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 LI46.35-P-079817 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 LI46.35-P-079817 cover?
The manufacturer filed it against 4 model years: 2025 Mercedes-Benz EQS, 2024 Mercedes-Benz EQS, 2023 Mercedes-Benz EQS, 2022 Mercedes-Benz EQS. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.