mechanics.tradeHeadlamp aim: too low
This was recorded 486,316 times on cars and light vans in 2025, which makes it number 21 on the list of things that stop a car passing.
486,316recorded in 2025
21on the national list
2.4%of the top forty defects
What the tester is looking at
The aim of a headlamp is not within limits laid down in the requirements
What you can do about it
Headlamp aim drifts as a car ages. It is a quick adjustment on most cars.
How serious it counts as
The tester records this as a major defect. What the categories mean.
Other things checked on the headlamp aim
All forty defects, from 42,728,066 MOT tests in 2025.