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Bmw 520 - 2020

56.2 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 520, model year 2020. Sample size: 4,450 cars, 9,844 tests and 5,528 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 4,450 cars

The 2020 BMW 520 has an overall defect rate of 56 per 100 vehicles, significantly lower than the average of 90 per 100, indicating a 37.5% improvement. This model particularly excels in brake and steering issues, with defect rates of 15% and 0.2%, respectively, well below the averages of 49% and 1.4%. However, it shows a notable concern in body and structural defects, where its rate of 8.5% is considerably higher than the average 2.3%. Mileage trends suggest that the defect rates for this model increase with distance, peaking at over 213 defects per 100 for those with more than 124,000 miles. Overall, the BMW 520 performs better than average in several categories but struggles with body integrity as mileage increases.

Cars by mileage segment

Total: 4,450 cars

More model years for Bmw 520

1995 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

Other models from Bmw

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Categories

Brakes
▲ 70.3% better
15.1 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
▲ 86.7% better
0.2 faults / 100 tests
Year avg: 1.5 / 100 tests
  • A steering ball joint: with excessive wear or free play
  • Steering linkage retaining or locking device missing or ineffective
  • Track rod or drag link ends seriously misaligned
  • A steering ball joint: with excessive wear or free play
  • Power steering pipe, hose or wiring: excessively damaged or corroded
Visibility
▲ 56.7% better
6.1 faults / 100 tests
Year avg: 14.1 / 100 tests
  • Wiper blade: defective
  • Wiper blade: missing or obviously not clearing 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
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 71.4% better
3.2 faults / 100 tests
Year avg: 11.2 / 100 tests
  • The aim of a headlamp is not within limits laid down in the requirements
  • A lens defective: which has no effect on emitted light
  • Lamp: multiple light source up to 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
  • The aim of a headlamp is not within limits laid down in the requirements
Wheels & Suspension
▲ 23.6% better
74.5 faults / 100 tests
Year avg: 97.5 / 100 tests
  • 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 cut in excess of the requirements deep enough to reach the ply or cords
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▼ 254.2% worse
8.5 faults / 100 tests
Year avg: 2.4 / 100 tests
  • A transmission shaft flexible coupling: excessively deteriorated
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • Exhaust system has a major leak or is insecure
  • A transmission shaft flexible coupling: excessively deteriorated
  • A transmission shaft constant velocity joint boot: severely deteriorated
Equipment
▲ 73.3% better
0.4 faults / 100 tests
Year avg: 1.5 / 100 tests
  • Seat belt buckle missing, damaged or not functioning as intended
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • ESC MIL indicates a system malfunction
  • A seat belt:
  • Steering lock missing or not functioning
Other
▼ 13.5% worse
4.2 faults / 100 tests
Year avg: 3.7 / 100 tests
  • Engine MIL inoperative or indicating a malfunction
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Engine MIL inoperative or indicating a malfunction
  • Engine MIL inoperative or indicating a malfunction
  • 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: 2,090
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 479
A transmission shaft flexible coupling: excessively deteriorated
ADVISORY
Occurrences: 339
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 311
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 270
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 264
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 249
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 245
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 146
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 109

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 270
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 245
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 109
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 99
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 40
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 35
Any fracture or welding defect on a wheel
FAIL
Occurrences: 34
A transmission shaft flexible coupling: excessively deteriorated
FAIL
Occurrences: 32
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 32
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 28