2020 · 4 years old at test · Petrol mostly

2020 BMW m135I MOT pass rate and common faults

3,461 MOT tests in 2024. 90.3% passed first time, compared with 86.9% for all cars the same age.

104Above average
Passed first time90.3%
Failed or needed repairs9.7%
Typical mileage at test29,000

Most common reasons for failing

Share of all 3,461 tests where this item caused a failure.

  1. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.9%
  2. Tread depth below requirements of 1.6mm1.8%
    107 marked dangerous
  3. Tyres - condition: has a bulge, caused by separation or partial failure of its structure1.6%
    87 marked dangerous
  4. Tyres - condition: has ply or cords exposed1.0%
    54 marked dangerous
  5. Brake pads: less than 1.5 mm thick0.9%
    66 marked dangerous
  6. Tyres - condition: has a lump, caused by separation or partial failure of its structure0.3%
    18 marked dangerous
  7. Headlamp aim: too high0.3%
  8. Brake pads: worn down to wear indicator0.3%
  9. Washers: provides insufficient washer liquid0.3%
  10. Coil spring: fractured or broken0.3%

Problem areas

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

  1. Tyres7.0%
  2. Brakes1.5%
  3. Lights & electrics0.8%
  4. Visibility (wipers, screen, mirrors)0.7%
  5. Emissions & leaks0.5%
  6. Suspension0.3%
  7. Number plates & VIN0.3%
  8. Seat belts & airbags0.3%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm12.0%
  2. Brake pads: less than 1.5 mm thick8.0%
  3. Tyres - condition: has a tear, caused by separation or partial failure of its structure4.6%
  4. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords2.3%
  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: tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

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Questions

What is the MOT pass rate for a 2020 BMW m135I?

In 2024, 90.3% of 2020 BMW m135I cars passed their MOT first time, across 3,461 tests. The average for all 4-year-old cars was 86.9%.

What are the most common MOT failures on a 2020 BMW m135I?

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

Is the 2020 BMW m135I reliable at MOT time?

Its MOT Rank score is 104, which is above average for a car of its age (100 means exactly average).