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Bmw I3 - 2021

70.6 faults per 100 tests
Year average for all cars of 2021 is 80.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw I3, model year 2021. Sample size: 3,823 cars, 8,204 tests and 5,794 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 3,823 cars

The 2021 BMW i3 has an overall defect rate of 71 per 100 vehicles, which is 10% lower than the average rate for cars of the same year at 79 per 100. This model stands out positively in categories like brakes, steering, visibility, and body structure, with significantly lower defect rates compared to the average. However, it shows a notable weakness in the wheels, suspensions, and axles category, where its defect rate exceeds the average by nearly 29%. Mileage data indicates that as the mileage increases, the defect rate also rises, particularly in the higher mileage brackets, although the model remains competitive overall.

Cars by mileage segment

Total: 3,823 cars

More model years for Bmw I3

2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

Other models from Bmw

Bmw 114 Bmw 116 Bmw 118 Bmw 120 Bmw 123 Bmw 125 Bmw 216 Bmw 218 Bmw 220 Bmw 316 Bmw 318 Bmw 320 Bmw 330 Bmw 335 Bmw 418 Bmw 420 Bmw 428 Bmw 430 Bmw 435 Bmw 440 Bmw 518 Bmw 520 Bmw 523 Bmw 525 Bmw 528 Bmw 530 Bmw 535 Bmw 630 Bmw 640 Bmw 645 Bmw 650 Bmw 728 Bmw 730 Bmw 740 Bmw 840 Bmw ALPINA Bmw I3 Bmw I4 Bmw IX3 Bmw M2 Bmw M3 Bmw M340D Bmw M4 Bmw M5 Bmw M6 Bmw X1 Bmw X2 Bmw X3 Bmw X4 Bmw X5 Bmw X6 Bmw X7 Bmw Z3 Bmw Z4

Categories

Brakes
▲ 79.0% better
8.4 faults / 100 tests
Year avg: 40.0 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Excessive fluctuation in brake effort through each wheel revolution
  • Brake fluid: not visible
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: significantly and obviously worn
Steering
▲ 85.7% better
0.1 faults / 100 tests
Year avg: 0.7 / 100 tests
  • Excessive wear or play in a universal joint or a flexible coupling excessively deteriorated
  • Free play in the steering, measured at the rim of the steering wheel is: excessive
  • Excessive roughness in operation of steering
Visibility
▲ 50.3% better
7.2 faults / 100 tests
Year avg: 14.5 / 100 tests
  • Wiper blade: defective
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▼ 12.5% worse
12.6 faults / 100 tests
Year avg: 11.2 / 100 tests
  • 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
  • Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
  • A lamp: not securely attached
Wheels & Suspension
▼ 27.7% worse
111.5 faults / 100 tests
Year avg: 87.3 / 100 tests
  • 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
  • Tyre tread depth not in accordance with the requirements
  • A wheel: badly distorted or wear between wheel and hub at spigot mounting
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 85.7% better
0.3 faults / 100 tests
Year avg: 2.1 / 100 tests
  • A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
  • A door will not open using the relevant control or close properly
  • A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
  • A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
  • An engine mounting or bracket: severely damaged or deteriorated resulting in excessive movement
Equipment
▲ 40.0% better
0.9 faults / 100 tests
Year avg: 1.5 / 100 tests
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • Seat belt buckle missing, damaged or not functioning as intended
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • A seat belt:
  • A seat belt: or flexible stalk damaged
Other
▲ 96.3% better
0.1 faults / 100 tests
Year avg: 2.7 / 100 tests
  • Any part of the noise suppression system: insecure
  • Any part of the noise suppression system: insecure
  • Any part of the noise suppression system: insecure

Fault rate by mileage segment

Model    Year average
0 300 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: 1,849
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,683
The aim of a headlamp is not within limits laid down in the requirements
PRS
Occurrences: 398
A wheel: badly distorted or wear between wheel and hub at spigot mounting
ADVISORY
Occurrences: 303
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 229
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 172
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 165
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 149
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 124
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 92

Serious faults (Top 10)

A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 165
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 149
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 124
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 52
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 50
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 29
A wheel: badly distorted or wear between wheel and hub at spigot mounting
FAIL
Occurrences: 23
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 23
Tyres on the same axle or on twin wheels are different sizes
FAIL
Occurrences: 21
Seat belt buckle missing, damaged or not functioning as intended
FAIL
Occurrences: 13