Why is my car clunking over bumps?
A clunk over bumps is typically worn suspension — usually sway-bar links, ball joints, control-arm bushes, or worn struts. It's a wear issue that worsens over time, hurts handling and chews tyres, so it's worth getting checked before it becomes a bigger job.
The most common causes
The most common clunk — cheap to replace and restores a quiet ride.
Most commonA safety item — worth checking promptly.
Safety itemWorn bushes let the arm move and knock over bumps.
Tired struts or their mounts clunk and hurt handling.
Occasionally the noise is a loose mount rather than the suspension itself.
What it costs in Sydney
| Mobile suspension diagnosis | $129 |
| Repairs (quoted per part, photographed) | Quoted on inspection |
Get it diagnosed — in your driveway.
We find which suspension part is knocking and give you a fixed price to fix it.
Common questions
It depends on the part. A worn sway-bar link is a comfort issue; a failing ball joint is a safety issue — which is why it's worth getting inspected.
Yes, and it affects tyre wear and handling, so the longer it's left the bigger the job tends to get.
Most often worn sway-bar links, ball joints, control-arm bushes or worn struts.