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Service bulletin LI32.25-P-079707

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11022529
Published by NHTSA2025-09-04
Manufacturer's numberLI32.25-P-079707
Manufacturer's date2025-08-29
NHTSA componentSUSPENSION

NHTSA's summary

Complaint Wheezing noises/squeaking noises from the front shock absorbers when passing over surface undulations and rough road. Noise MUST match those heard in the attached videos. Cause • Wheezing noises: Flow noises of the shock absorber fluid • Squeaking noise: From the mechanical rubber valve in the dividing piston Remedy Replace shock absorber(s). If noise persists after replacement, please create a TIPS case to the Body, Chassis, Entertainment inbox referencing this LI and include sound/video files.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension

Vehicles listed
MERCEDES-BENZ AMG C432023 to 2024
MERCEDES-BENZ AMG C63 S E2024
MERCEDES-BENZ AMG GLC432024
MERCEDES-BENZ AMG GLC63 S E2025
MERCEDES-BENZ C 3002022 to 2025
MERCEDES-BENZ E 3502025
MERCEDES-BENZ E 350 4MATIC2025
MERCEDES-BENZ E 450 4MATIC2025
MERCEDES-BENZ E 450 4MATIC ALL-TERRAIN2025
MERCEDES-BENZ GLC 3002023 to 2025
MERCEDES-BENZ GLC 300 4MATIC2023 to 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.