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Bmw Z3 - 1999

295.1 faults per 100 tests
Year average for all cars of 1999 is 349.1 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw Z3, model year 1999. Sample size: 3,082 cars, 6,490 tests and 19,149 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 3,082 cars

The 1999 BMW Z3 has an overall defect rate of 295 per 100 vehicles, which is 14% lower than the average for cars of the same year. Notably, the Z3 performs better in several categories, particularly in steering, visibility, lights and electrics, and body/structure, with defect rates significantly lower than the average. Mileage trends indicate that as the vehicle ages and accumulates mileage, the defect rate increases, particularly for those over 124,000 miles. Overall, this model demonstrates strengths in reliability compared to its peers, making it a solid choice for buyers looking for a dependable vehicle from this era.

Cars by mileage segment

Total: 3,082 cars

Categories

Brakes
▼ 13.0% worse
173.4 faults / 100 tests
Year avg: 153.4 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake hose ferrules: excessively corroded
Steering
▲ 41.7% better
15.1 faults / 100 tests
Year avg: 25.9 / 100 tests
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
  • Power steering fluid leaking or system malfunctioning
  • Power steering pipe, hose or wiring: excessively damaged or corroded
  • A steering ball joint: with excessive wear or free play
Visibility
▲ 22.9% better
20.5 faults / 100 tests
Year avg: 26.6 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • 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
  • Wiper blade: defective
Lights & Electrics
▲ 26.8% better
53.4 faults / 100 tests
Year avg: 73.0 / 100 tests
  • Headlamp reflector or lens: slightly defective
  • Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
  • Lamp emitted colour, position or intensity not in accordance with the requirements
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
Wheels & Suspension
▲ 12.7% better
233.0 faults / 100 tests
Year avg: 266.9 / 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
  • A spring: or spring component fractured or seriously weakened
  • Tyre tread depth not in accordance with the requirements
  • A suspension component: excessively damaged or corroded
Body/Structure
▲ 48.4% better
39.5 faults / 100 tests
Year avg: 76.5 / 100 tests
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • Exhaust system has a major leak or is insecure
  • Exhaust system has a major leak or is insecure
  • Body, cab or chassis: excessively corroded at mounting points
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▲ 32.3% better
13.0 faults / 100 tests
Year avg: 19.2 / 100 tests
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • is significantly reduced or The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’): inadequately repaired
  • is significantly reduced or The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’): inadequately repaired
  • ESC MIL indicates a system malfunction
Other
▲ 25.5% better
42.1 faults / 100 tests
Year avg: 56.5 / 100 tests
  • Emissions levels exceed default limits
  • Emissions levels exceed the manufacturer’s specified limits
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Lambda coefficient outside the default limits or the range specified by the manufacturer
  • Emissions test unable to be completed

Fault rate by mileage segment

Model    Year average
0 566 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)

Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 2,153
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 1,737
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 1,025
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 992
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 883
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 880
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 830
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 619
Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
ADVISORY
Occurrences: 559
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
ADVISORY
Occurrences: 513

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 335
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 186
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 177
Emissions levels exceed default limits
FAIL
Occurrences: 158
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 153
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 146
Warning device shows system malfunction
FAIL
Occurrences: 144
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 137
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 133
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 128