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Federal filingsHome›Bulletins›Mercedes-Benz› LI32.25-P-079231
Manufacturer communication · Service bulletin

Mercedes-Benz bulletin LI32.25-P-079231

What it saysComplaint When driving on uneven road surfaces, there may be cracking, thumping, or knocking noises from the area of the rear axle. NHTSA’s full summary ↓

Mercedes-Benz filed this with NHTSA as a service bulletin dated Jul 1, 2025, received Jul 2, 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 communication

Complaint When driving on uneven road surfaces, there may be cracking, thumping, or knocking noises from the area of the rear axle. Cause The lower connection of the shock absorber (damper) to the lower transverse control arm might not have been torqued to specification. Remedy Tighten threaded connection to listed appropriate torque. (See WIS). Replacing the shock absorber (damper) does not remedy the problem. Invoice SSL 32D07 and 32S07 for this. Note: The threaded connection is self-locking and will not detach. Noise is the only byproduct.

Kind Service bulletin Manufacturer date Jul 1, 2025 Received by NHTSA Jul 2, 2025 Components Suspension

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
LI32.25-P-079231Service bulletinJul 1, 202511020156PDF, 35 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 them

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 database

Owners of the 4 model years this bulletin names have filed 134 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 group

1 other manufacturer communication filed against the Mercedes-Benz EQB under the same component group (suspension), newest first.

NumberKindDatedNHTSA’s summary
LI32.25-P-070053Service bulletinMay 16, 2026Complaint There may be creaking noises when steering while stationary or driving slowly. See Example Noise attachment Cause The vehicle leve…

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.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Mercedes-Benz LI32.25-P-079231 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 LI32.25-P-079231 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 LI32.25-P-079231 cover?

The manufacturer filed it against 4 model years: 2025 Mercedes-Benz EQB, 2024 Mercedes-Benz EQB, 2023 Mercedes-Benz EQB, 2022 Mercedes-Benz EQB. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.