# Excessive oil discharge from a compressor or brake valve — Vehicle inspection defect categories: MOT major, minor and dangerous verdicts

For Excessive oil discharge from a compressor or brake valve, category is Minor; inspection item number is 1.1.7; defect reference is (b); inspection item is Brake valves; authority is DVSA MOT (cars, vans and passenger vehicles, classes 3, 4, 5, 7), recorded from its source on 2026-08-06.

- **Defect:** Excessive oil discharge from a compressor or brake valve _(verified: appears in the quote below)_
- **Category:** Minor _(verified: appears in the quote below)_
- **Inspection item number:** 1.1.7
- **Defect reference:** (b) _(verified: appears in the quote below)_
- **Inspection item:** Brake valves
- **Authority:** DVSA MOT (cars, vans and passenger vehicles, classes 3, 4, 5, 7) _(our reading, not quoted from the source)_

## What the source says

> (b) | Excessive oil discharge from a compressor or brake valve | Minor

## Source

- https://www.gov.uk/guidance/mot-inspection-manual-for-private-passenger-and-light-commercial-vehicles/1-brakes

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/).