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Bmw X4 - 2018

79.3 faults per 100 tests
Year average for all cars of 2018 is 123.2 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw X4, model year 2018. Sample size: 2,499 cars, 6,060 tests and 4,803 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 2,499 cars

The 2018 BMW X4 has an overall defect rate of 79 per 100 vehicles, which is significantly lower than the average of 120 per 100 for its year, marking a 34% improvement. Notably, this model excels in categories such as brakes, steering, and body structure, showing much lower defect rates compared to the average. For instance, the brake defect rate is at 44%, while the average is 67%. Mileage-related trends indicate that defects increase with higher mileage, particularly after 124,000 miles. Overall, the BMW X4 stands out for its reliability, especially in braking and structural integrity.

Cars by mileage segment

Total: 2,499 cars

More model years for Bmw X4

2014 2015 2016 2017 2018 2019 2020 2021 2022

Other models from Bmw

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Categories

Brakes
▲ 36.0% better
44.0 faults / 100 tests
Year avg: 68.8 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: significantly and obviously worn
  • Excessive fluctuation in brake effort through each wheel revolution
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 5.0 / 100 tests
  • A steering ball joint: with excessive wear or free play
Visibility
▲ 10.8% better
12.4 faults / 100 tests
Year avg: 13.9 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: defective
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 65.9% better
6.0 faults / 100 tests
Year avg: 17.6 / 100 tests
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
  • Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
  • 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
Wheels & Suspension
▲ 29.1% better
89.8 faults / 100 tests
Year avg: 126.7 / 100 tests
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A suspension pin, bush, joint or bearing: excessively worn
  • 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
Body/Structure
▲ 90.2% better
0.5 faults / 100 tests
Year avg: 5.1 / 100 tests
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • Fuel system: leaking, or missing or ineffective filler cap
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • Bumper: insecure or with damage likely to cause injury when grazed or contacted
  • A transmission shaft flexible coupling: excessively deteriorated
Equipment
▲ 72.7% better
0.6 faults / 100 tests
Year avg: 2.2 / 100 tests
  • Seat belt buckle missing, damaged or not functioning as intended
  • Seat belt not functioning as intended or of an incorrect type
  • Seat belt buckle missing, damaged or not functioning as intended
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 25.7% better
5.2 faults / 100 tests
Year avg: 7.0 / 100 tests
  • Engine MIL inoperative or indicating a malfunction
  • 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

Fault rate by mileage segment

Model    Year average
0 307 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: 1,573
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 629
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 335
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 237
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 209
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 164
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 129
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 122
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 112
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 109

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 122
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 105
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 102
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 83
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 73
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 32
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 29
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 20
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 17
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 15