mechanics.tradeBall joint dust cover: ball joint dust cover no longer prevents the ingress of dirt
This was recorded 219,908 times on cars and light vans in 2025, which makes it number 39 on the list of things that stop a car passing.
219,908recorded in 2025
39on the national list
1.1%of the top forty defects
What the tester is looking at
A suspension joint dust cover missing or no longer prevents the ingress of dirt etc
How serious it counts as
The tester records this as a major defect. What the categories mean.
Other things checked on the ball joint dust cover
All forty defects, from 42,728,066 MOT tests in 2025.