2021 · 3 years old at test · Electric mostly

2021 Ford Mustang MOT pass rate and common faults

3,031 MOT tests in 2024. 89.9% passed first time, compared with 87.6% for all cars the same age.

103Above average
Passed first time89.9%
Failed or needed repairs10.1%
Typical mileage at test26,000

Most common reasons for failing

Share of all 3,031 tests where this item caused a failure.

  1. Tread depth below requirements of 1.6mm2.0%
    107 marked dangerous
  2. Tyres - condition: has ply or cords exposed1.8%
    84 marked dangerous
  3. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.7%
  4. Headlamp aim: too high1.4%
  5. Headlamp aim: too low0.7%
  6. Wipers: does not clear the windscreen effectively0.5%
  7. Washers: provides insufficient washer liquid0.2%
  8. Tyres - condition: has a bulge, caused by separation or partial failure of its structure0.2%
    6 marked dangerous

Problem areas

Failure items found per 100 tests, by part of the car.

  1. Tyres6.4%
  2. Lights & electrics2.7%
  3. Visibility (wipers, screen, mirrors)1.1%
  4. Brakes0.7%
  5. Number plates & VIN0.3%
  6. Seat belts & airbags0.3%
  7. Emissions & leaks0.3%
  8. Suspension0.2%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm18.0%
  2. Tread depth: tread pattern not visible over the whole tread area when minimum depth required is 1.0mm2.5%
  3. Brake discs: in such a condition that it is seriously weakened2.1%
  4. Non-component advisories: Child Seat fitted not allowing full inspection of adult belt2.1%
  5. Non-component advisories: Nail in tyre1.9%

What this means if you are buying one

This model year does better than most cars its age, so it is a reasonable used buy on MOT record alone. Before buying, check the area that fails most: tread depth below requirements of 1.6mm. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

← 2020 MustangAll Mustang years

Questions

What is the MOT pass rate for a 2021 Ford Mustang?

In 2024, 89.9% of 2021 Ford Mustang cars passed their MOT first time, across 3,031 tests. The average for all 3-year-old cars was 87.6%.

What are the most common MOT failures on a 2021 Ford Mustang?

The most common failure reasons were tread depth below requirements of 1.6mm; tyres - condition: has ply or cords exposed; tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords. The biggest problem area was tyres.

Is the 2021 Ford Mustang reliable at MOT time?

Its MOT Rank score is 103, which is above average for a car of its age (100 means exactly average).