Mercedes-Benz AMG C43 2022–2025 — technical service bulletin
Bulletin LI32.25-P-079707 · NHTSA communication 11022529 · issued Aug 29, 2025
Technical service bulletin
communication type
Suspension
component
2022–2025
model years
19
vehicle entries
Official 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.
Vehicles covered
- 2023 Mercedes-Benz AMG C43
- 2024 Mercedes-Benz AMG C43
- 2024 Mercedes-Benz AMG C63 S E
- 2024 Mercedes-Benz AMG GLC43
- 2025 Mercedes-Benz AMG GLC63 S E
- 2022 Mercedes-Benz C 300
- 2023 Mercedes-Benz C 300
- 2024 Mercedes-Benz C 300
- 2025 Mercedes-Benz C 300
- 2025 Mercedes-Benz E 350
- 2025 Mercedes-Benz E 350 4MATIC
- 2025 Mercedes-Benz E 450 4MATIC
- 2025 Mercedes-Benz E 450 4MATIC All-Terrain
- 2023 Mercedes-Benz GLC 300
- 2024 Mercedes-Benz GLC 300
- 2025 Mercedes-Benz GLC 300
- 2023 Mercedes-Benz GLC 300 4MATIC
- 2024 Mercedes-Benz GLC 300 4MATIC
- 2025 Mercedes-Benz GLC 300 4MATIC
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.