# Unsafe modification to any component 3 — Vehicle inspection defect categories: MOT major, minor and dangerous verdicts

For Unsafe modification to any component 3, category is Major; inspection item number is 1.1.21; defect reference is (d); inspection item is Complete braking system; authority is EU Directive 2014/45/EU Annex I, recorded from its source on 2026-08-06.

- **Defect:** Unsafe modification to any component 3 _(verified: appears in the quote below)_
- **Category:** Major
- **Inspection item number:** 1.1.21
- **Defect reference:** (d) _(verified: appears in the quote below)_
- **Inspection item:** Complete braking system
- **Authority:** EU Directive 2014/45/EU Annex I _(our reading, not quoted from the source)_

## What the source says

> (d) | Unsafe modification to any component 3 Braking performance affected. | | | X | X

## Source

- https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32014L0045

Last verified: 2026-08-06. Review by: 2027-02-02.
Part of [Vehicle inspection defect categories: MOT major, minor and dangerous verdicts](https://referencesource.org/vehicle-inspection-defect-categories/).