The MOT Files

Section 1 · Brakes

1.1.13 Brake linings and pads

Manual indexed

Quick answer

Sub-section 1.1.13 of the MOT inspection manual covers brake linings and pads and lists 4 defects, 2 of them Dangerous. A reference like "(1.1.13 (a)(i))" on a certificate points to the matching row below. The most recorded is "Brake lining or pad worn down to wear indicator", about 0.3 times per 100 failed tests.

Official wording

The defect clauses

  1. 1.1.13 (a)(i)Major0.3 per 100 fails

    Brake lining or pad worn down to wear indicator

    Brake drum or shoe worn or contaminated explained: what it means and what puts it right

  2. 1.1.13 (a)(ii)Dangerous

    Brake lining or pad worn below 1.5mm

    Brake drum or shoe worn or contaminated explained: what it means and what puts it right

  3. 1.1.13 (b)Major

    Brake lining or pad contaminated with oil, grease etc.

    Brake drum or shoe worn or contaminated explained: what it means and what puts it right

  4. 1.1.13 (c)Dangerousunder 0.1 per 100 fails

    Brake lining or pad missing or incorrectly mounted

    Brake drum or shoe worn or contaminated explained: what it means and what puts it right

Wording and categories reproduced from the DVSA inspection manual under the Open Government Licence. Frequencies are items per 100 failed class 4 tests across the DVSA anonymised MOT dataset; a clause with no figure was not recorded often enough to appear in any model’s top forty failure items. 4 of 4 clauses link to our own explanation.

Grading

What the categories mean

Dangerous
a direct and immediate risk to road safety or the environment. The vehicle fails and must not be driven until repaired, even to a garage.
Major
a defect that affects safety, the environment or other road users. The vehicle fails.
Minor
a defect with no significant effect on safety or the environment. Recorded on the certificate; the vehicle passes.

The full guide to defect grading

Section 1

All sections of the manual

Common questions

What does 1.1.13 mean on an MOT certificate?
It refers to sub-section 1.1.13 of the MOT inspection manual, "Brake linings and pads", within section 1, brakes. The letter or letters after it — (a), (b)(i) and so on — identify the specific defect from the 4 listed here. 2 of them are graded Dangerous, 2 Major and 0 Minor.
Which brake linings and pads defect is recorded most often?
"Brake lining or pad worn down to wear indicator" (1.1.13 (a)(i)), recorded about 0.3 times per 100 failed MOT tests nationally. We explain what it means and what puts it right.
Does a Minor defect fail the MOT?
No. a defect with no significant effect on safety or the environment. Recorded on the certificate; the vehicle passes. Major and Dangerous defects fail. A Dangerous defect also means the car must not be driven until it is repaired.