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Bmw 645 - 2004

273.6 faults per 100 tests
Year average for all cars of 2004 is 384.6 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw 645, model year 2004. Sample size: 1,357 cars, 2,932 tests and 8,022 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 1,357 cars

The 2004 BMW 645 has an overall defect rate of 274 per 100 vehicles, which is 28% lower than the average rate of 382 for cars of the same year. This model performs particularly well in categories such as steering, visibility, and lights and electrics, showing significantly fewer defects compared to the average. However, it has a notable issue in the "Other" defects category, with a rate of 80, which is higher than the average. Mileage-related trends indicate that defect rates generally increase with higher mileage, but the BMW 645 maintains a relatively stable performance across different mileage segments compared to the year average. Overall, this model demonstrates strengths in several areas while facing challenges in specific defect categories.

Cars by mileage segment

Total: 1,357 cars

Categories

Brakes
▲ 10.6% better
146.8 faults / 100 tests
Year avg: 164.2 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake lining or pad: worn below 1.5mm
  • Parking brake efficiency: below minimum requirement
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake pipe damaged or excessively corroded
Steering
▲ 53.0% better
11.7 faults / 100 tests
Year avg: 24.9 / 100 tests
  • A steering ball joint: with excessive wear or free play
  • Power steering fluid leaking or system malfunctioning
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • A steering ball joint: with excessive wear or free play
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
Visibility
▲ 33.8% better
19.4 faults / 100 tests
Year avg: 29.3 / 100 tests
  • 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
  • Wiper blade: missing or obviously not clearing the windscreen
  • Obligatory mirror or device: slightly damaged or loose
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 72.2% better
30.6 faults / 100 tests
Year avg: 109.9 / 100 tests
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
  • Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
  • The aim of a headlamp is not within limits laid down in the requirements
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▲ 22.9% better
241.3 faults / 100 tests
Year avg: 312.9 / 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 suspension joint dust cover: severely deteriorated
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 83.6% better
10.4 faults / 100 tests
Year avg: 63.6 / 100 tests
  • Exhaust system has a major leak or is insecure
  • A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • Body, cab or chassis: excessively corroded at mounting points
Equipment
▲ 50.7% better
6.8 faults / 100 tests
Year avg: 13.8 / 100 tests
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • Audible warning:
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • A seat belt:
Other
▼ 58.8% worse
80.2 faults / 100 tests
Year avg: 50.5 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Exhaust emits excessive dense blue or clearly visible black smoke during acceleration which would obscure the view of other road users
  • Emissions test unable to be completed
  • Engine MIL inoperative or indicating a malfunction
  • Exhaust noise levels in excess of those permitted

Fault rate by mileage segment

Model    Year average
0 533 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)

A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 997
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 950
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 883
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 855
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 478
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 433
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 215
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 208
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 199
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 162

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 215
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 111
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 104
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 95
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 75
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 63
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 60
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 59
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 56
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 48