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Bmw 420 - 2015

115.9 faults per 100 tests
Year average for all cars of 2015 is 174.5 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw 420, model year 2015. Sample size: 12,186 cars, 28,309 tests and 32,796 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 12,186 cars

The 2015 BMW 420 has a significantly lower overall defect rate of about 116 defects per 100 vehicles, which is 32% better than the average for cars of the same year. While the model shows a concerning trend of increasing defects with mileage, particularly in the higher mileage categories, it excels in several areas compared to its peers. Notably, it has much fewer issues related to brakes, steering, and visibility, indicating a stronger performance in these categories. Additionally, the BMW 420 displays fewer defects in lights, body structure, and equipment, further highlighting its advantages in overall reliability compared to the average vehicle.

Cars by mileage segment

Total: 12,186 cars

More model years for Bmw 420

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
▲ 24.1% better
64.3 faults / 100 tests
Year avg: 84.7 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
  • Excessive fluctuation in brake effort through each wheel revolution
  • Brake lining or pad: worn below 1.5mm
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 53.5% better
4.6 faults / 100 tests
Year avg: 9.9 / 100 tests
  • A steering ball joint: with excessive wear or free play
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • Excessive roughness in operation of steering
  • Free play in the steering, measured at the rim of the steering wheel is: excessive
  • A steering ball joint: with excessive wear or free play
Visibility
▲ 32.9% better
10.8 faults / 100 tests
Year avg: 16.1 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: defective
  • Wiper blade: missing or obviously not clearing the windscreen
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 63.9% better
11.2 faults / 100 tests
Year avg: 31.0 / 100 tests
  • A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
  • The aim of a headlamp is not within limits laid down in the requirements
  • Lamp: multiple light source up to a half not functioning
  • The aim of a headlamp is not within limits laid down in the requirements
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▲ 28.4% better
127.6 faults / 100 tests
Year avg: 178.3 / 100 tests
  • A suspension pin, bush, joint or bearing: excessively worn
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A shock absorber damaged … or showing signs of severe leakage
Body/Structure
▲ 80.3% better
2.3 faults / 100 tests
Year avg: 11.7 / 100 tests
  • Exhaust system has a major leak or is insecure
  • Exhaust system has a major leak or is insecure
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A transmission shaft flexible coupling: excessively deteriorated
Equipment
▲ 72.5% better
1.1 faults / 100 tests
Year avg: 4.0 / 100 tests
  • Seat belt buckle missing, damaged or not functioning as intended
  • A seat belt: or flexible stalk damaged
  • Audible warning:
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 26.5% better
9.7 faults / 100 tests
Year avg: 13.2 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Smoke opacity levels exceed the manufacturer’s specified limit
  • Any part of the noise suppression system: insecure
  • Engine MIL inoperative or indicating a malfunction
  • Engine MIL inoperative or indicating a malfunction

Fault rate by mileage segment

Model    Year average
0 342 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: 8,501
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 3,409
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 2,817
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 2,174
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,351
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 1,209
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 1,206
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 1,066
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 853
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 748

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 1,209
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 748
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 401
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 370
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 339
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 324
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 322
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 264
A wheel: with a loose or missing wheel nut, bolt or stud
FAIL
Occurrences: 201
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 138