mechanics.tradeComponent mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength
This was recorded 268,610 times on cars and light vans in 2025, which makes it number 33 on the list of things that stop a car passing.
268,610recorded in 2025
33on the national list
1.3%of the top forty defects
What the tester is looking at
The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired
How serious it counts as
The tester records this as a major defect. What the categories mean.
All forty defects, from 42,728,066 MOT tests in 2025.