Skip to main content

Bmw M3 - 2020

40.8 faults per 100 tests
Year average for all cars of 2020 is 91.3 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw M3, model year 2020. Sample size: 2,064 cars, 5,129 tests and 2,094 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 2,064 cars

The 2020 BMW M3 has a significantly lower overall defect rate, with 41 defects per 100 vehicles compared to the yearly average of 90 defects per 100 vehicles, marking a 55% improvement. This model shows particularly fewer issues in critical areas such as brakes, steering, and visibility, outperforming the average by substantial margins. Mileage-related trends indicate a gradual increase in defects as mileage rises, but the M3 still maintains a low defect rate in each mileage category compared to the average. Notably, the M3 excels in areas like body structure and equipment, where defect rates are much lower than the average.

Cars by mileage segment

Total: 2,064 cars

Categories

Brakes
▲ 73.8% better
13.3 faults / 100 tests
Year avg: 50.8 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: significantly and obviously worn
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Excessive fluctuation in brake effort through each wheel revolution
Steering
▲ 53.3% better
0.7 faults / 100 tests
Year avg: 1.5 / 100 tests
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
  • Excessive roughness in operation of steering
Visibility
▲ 61.7% better
5.4 faults / 100 tests
Year avg: 14.1 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Windscreen or window excessively tinted: but not adversely affecting driver’s view
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: defective
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 67.9% better
3.6 faults / 100 tests
Year avg: 11.2 / 100 tests
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
  • The aim of a headlamp is not within limits laid down in the requirements
  • The aim of a headlamp is not within limits laid down in the requirements
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▲ 43.2% better
55.4 faults / 100 tests
Year avg: 97.5 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 75.0% better
0.6 faults / 100 tests
Year avg: 2.4 / 100 tests
  • Exhaust system has a major leak or is insecure
  • A door will not open using the relevant control or close properly
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • Exhaust system has a major leak or is insecure
  • A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
Equipment
▲ 73.3% better
0.4 faults / 100 tests
Year avg: 1.5 / 100 tests
  • A seat belt:
  • A seat belt:
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • Seat belt buckle missing, damaged or not functioning as intended
Other
▲ 35.1% better
2.4 faults / 100 tests
Year avg: 3.7 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Emissions levels exceed default limits
  • Engine MIL inoperative or indicating a malfunction
  • Emissions levels exceed the manufacturer’s specified limits
  • Engine MIL inoperative or indicating a malfunction

Fault rate by mileage segment

Model    Year average
0 273 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 728
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 231
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 188
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 97
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 90
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 76
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 70
The aim of a headlamp is not within limits laid down in the requirements
PRS
Occurrences: 57
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 54
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 54

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 231
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 97
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 51
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 21
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 12
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 11
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 10
Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 9
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 7
Any fracture or welding defect on a wheel
FAIL
Occurrences: 7