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Bmw Z4 - 2017

89.4 faults per 100 tests
Year average for all cars of 2017 is 137.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw Z4, model year 2017. Sample size: 154 cars, 379 tests and 339 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 154 cars

The 2017 BMW Z4 has an overall defect rate of 89 per 100 vehicles, significantly lower than the average of 134 per 100 vehicles, marking a 33% improvement. This model shows particularly strong performance in categories such as brakes and steering, where it has much lower defect rates compared to the average. However, it does have a higher incidence of visibility-related defects. Additionally, defect rates tend to increase with mileage, particularly in the highest mileage category, which is typical of many vehicles. Overall, the Z4 stands out positively in several key areas, suggesting it may be a reliable choice compared to its peers.

Cars by mileage segment

Total: 154 cars

More model years for Bmw Z4

2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 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
▲ 39.6% better
43.8 faults / 100 tests
Year avg: 72.5 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
  • Brake hose ferrules: excessively corroded
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 5.6 / 100 tests
Visibility
▼ 23.4% worse
17.9 faults / 100 tests
Year avg: 14.5 / 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
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 48.0% better
10.6 faults / 100 tests
Year avg: 20.4 / 100 tests
  • Stop lamp(s): with a multiple light source up to 1/2 not functioning
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • Stop lamp(s): all missing or inoperative
  • The aim of a headlamp is not within limits laid down in the requirements
  • Headlamp aim unable to be tested
Wheels & Suspension
▲ 27.7% better
103.4 faults / 100 tests
Year avg: 143.1 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • 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
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Any fracture or welding defect on a wheel
Body/Structure
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 7.0 / 100 tests
Equipment
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 2.7 / 100 tests
Other
▲ 64.4% better
3.2 faults / 100 tests
Year avg: 9.0 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users

Fault rate by mileage segment

Model    Year average
0 350 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: 78
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 55
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 47
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 20
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 18
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 15
Any fracture or welding defect on a wheel
FAIL
Occurrences: 14
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 10
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 9
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 9

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 20
Any fracture or welding defect on a wheel
FAIL
Occurrences: 14
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 10
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 9
Tyres on the same axle or on twin wheels are different sizes
FAIL
Occurrences: 5
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 3
Brake disc or drum: insecure, fractured or otherwise likely to fail
FAIL
Occurrences: 2
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 2
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 2
Brake lining or pad: worn down to wear indicator
FAIL
Occurrences: 1