This content was compiled automatically and has not yet been reviewed by a technician. For reference only.
For reference only. Always confirm part numbers and procedures for your specific vehicle.
Suspension
2025 SEAL noise over speed humps: identify FSD and DiSus-C dampers first
Australian MY25 SEAL Premium lists FSD, while Performance lists DiSus-C. Identify the damping system and inspect the noise before replacing parts.
If an Australian 2025 model-year SEAL makes a noise over a speed hump, do not order using “SEAL damper” alone. The factory table lists FSD for MY25 Premium and DiSus-C for Performance. Identify the damping system before locating the noise to avoid both the wrong part and an unresolved cause.
FSD and DiSus-C are separate factory entries
The Australian factory equipment table lists Frequency Selective Damping (FSD) for Premium and BYD DiSus-C Adaptive Damping for Performance. Dynamic is listed as not equipped under both entries.[Factory equipment table][N05]
The table first establishes system identity. Dynamic's absence from these entries does not mean it has no dampers. Equally, the ability of both Premium and Performance to respond to road changes does not establish identical damping components.
Responding to the road does not necessarily mean the same control method
For background on FSD, KONI's published explanation of its own design describes hydraulic valves controlling fluid paths inside a damper. It can vary damping response with movement frequency without additional electronic sensors or external control equipment.[KONI technical explanation][R03]
BYD classifies DiSus-C as a type of intelligent damping body-control system, corresponding to the adaptive damping entry in the Australian SEAL table.[BYD technical release][R04] Procurement and repair records should therefore retain FSD or DiSus-C system identity, rather than reducing both to “variable damping shock absorber” and assessing substitution by appearance.
Especially after replacement, inspect mounting areas as well as the noise
Monroe's technical guidance on noise from newly installed dampers highlights mounting security, mounts and other worn suspension components. Loose or worn mounting areas may also knock or move.[New damper noise inspection][R08]
At vehicle reception, distinguish noise present before replacement from noise appearing afterwards. Record its relationship to bumps, then locate the sound and inspection area. System type determines which parts need identification; inspection results determine replacement. A single noise does not prove internal damper failure, and swapping to another version cannot substitute for diagnosis.
Scope and verification
This article covers damping equipment identification only for the three Australian MY25 SEAL versions. The model year is separately checked against an explicit [MY25 version designation][N06] in the local brand dealer network. KONI information describes only its own FSD design; it does not prove that KONI supplies SEAL or that its internal valves are the same. Monroe information provides general noise inspection directions only, without SEAL installation procedures or fitment authorisation.
No public data was available in the reviewed material for damper OE numbers, separate parts availability, SEAL internal valves, diagnostic codes, test limits, installation torques or cross-trim interchangeability. [To be verified] Verify compatibility or interchangeability using the VIN and local Australian manufacturer parts catalogue. Repairs must follow the relevant manufacturer technical information.
For suspension damper parts, use the parts enquiry page.
[N05]: https://bydautomotive.com.au/brochures/BYD-SEAL-2025.pdf
[N06]: https://bydhomebush.com.au/shop
[R03]: https://www.koniuk.co.uk/active-technology/
[R04]: https://en.byd.com/news/byd-reveals-disus-intelligent-body-control-system-exclusively-for-new-energy-vehicles/
[R08]: https://www.monroe.com/technical-resources/tech-tips/diagnosing-noise-with-new-shock-struts.html