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Bmw Z4 - 2011

107.8 faults per 100 tests
Year average for all cars of 2011 is 274.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw Z4, model year 2011. Sample size: 2,286 cars, 5,275 tests and 5,688 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 2,286 cars

The 2011 BMW Z4 has an overall defect rate of 108 per 100 vehicles, significantly lower than the yearly average of 271 per 100, which indicates a 60% improvement. Mileage-related trends show that defect rates increase with mileage, particularly in the higher mileage categories. Notably, the Z4 performs exceptionally well in categories such as Brakes, Steering, and Body/Structure, with defects much lower than the average. These findings suggest that the Z4 is a reliable choice compared to typical vehicles of the same year, especially in critical areas like braking and visibility.

Cars by mileage segment

Total: 2,286 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
▲ 49.1% better
55.9 faults / 100 tests
Year avg: 109.9 / 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 hose ferrules: excessively corroded
Steering
▲ 94.3% better
0.9 faults / 100 tests
Year avg: 15.8 / 100 tests
  • A steering ball joint: with excessive wear or free play
  • Excessive wear or play in a universal joint or a flexible coupling excessively deteriorated
  • Excessive roughness in operation of steering
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 42.5% better
12.2 faults / 100 tests
Year avg: 21.2 / 100 tests
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
  • 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
Lights & Electrics
▲ 79.1% better
14.4 faults / 100 tests
Year avg: 68.9 / 100 tests
  • The aim of a headlamp is not within limits laid down in the requirements
  • A direction indicator: lamp with a multiple light source up to 1/2 not functioning
  • Lamp: missing, inoperative or in the case of a multiple light source more than a half 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
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▲ 55.8% better
117.8 faults / 100 tests
Year avg: 266.4 / 100 tests
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A shock absorber damaged … or showing signs of severe leakage
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 94.6% better
1.7 faults / 100 tests
Year avg: 31.3 / 100 tests
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • A body panel or body component: likely to become detached
  • 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: severely deteriorated
Equipment
▲ 70.3% better
2.2 faults / 100 tests
Year avg: 7.4 / 100 tests
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • A seat belt: or flexible stalk damaged
  • A seat belt:
  • ESC MIL indicates a system malfunction
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 62.6% better
10.4 faults / 100 tests
Year avg: 27.8 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Emissions levels exceed default limits
  • Lambda coefficient outside the default limits or the range specified by the manufacturer
  • Engine MIL inoperative or indicating a malfunction
  • Engine MIL inoperative or indicating a malfunction

Fault rate by mileage segment

Model    Year average
0 421 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: 1,016
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 809
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 611
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 325
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 191
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 173
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 169
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 157
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 149
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 141

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 173
Any fracture or welding defect on a wheel
FAIL
Occurrences: 133
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 81
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 63
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 56
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 52
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 44
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 41
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 36
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 33