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Bmw 523 - 2005

276.9 faults per 100 tests
Year average for all cars of 2005 is 377.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Bmw 523, model year 2005. Sample size: 224 cars, 490 tests and 1,357 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 224 cars

The 2005 BMW 523 has an overall defect rate of 277 per 100 vehicles, which is significantly lower than the yearly average of 376 per 100, marking an improvement of 26%. This model performs particularly well in categories like Steering and Visibility, showing defect rates that are about 49% and 37% lower than average, respectively. However, it has a higher defect rate in Equipment, exceeding the average by 46%. Mileage trends indicate that defect rates increase with mileage, particularly notable in the 93,000–124,000 miles range. Overall, this model demonstrates strengths in certain areas while facing challenges in others compared to its peers.

Cars by mileage segment

Total: 224 cars

More model years for Bmw 523

1997 1998 1999 2000 2005 2006 2007 2008 2009 2010 2011

Other models from Bmw

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Categories

Brakes
▲ 11.4% better
140.4 faults / 100 tests
Year avg: 158.5 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
  • Brake disc or drum: significantly and obviously worn
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 49.1% better
11.4 faults / 100 tests
Year avg: 22.4 / 100 tests
  • A steering ball joint: with excessive wear or free play
  • Free play in the steering, measured at the rim of the steering wheel is: excessive
  • 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
▲ 38.0% better
17.6 faults / 100 tests
Year avg: 28.4 / 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 washers not working or not providing sufficient fluid to clear the windscreen
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Obligatory mirror or device: slightly damaged or loose
Lights & Electrics
▲ 19.9% better
88.2 faults / 100 tests
Year avg: 110.1 / 100 tests
  • 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
  • Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
  • Headlamp reflector or lens: slightly defective
  • Lamp: multiple light source up to a half not functioning
Wheels & Suspension
▲ 30.2% better
219.2 faults / 100 tests
Year avg: 314.1 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
  • 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
Body/Structure
▲ 87.3% better
7.8 faults / 100 tests
Year avg: 61.5 / 100 tests
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • Fuel system: leaking, or missing or ineffective filler cap
Equipment
▼ 39.5% worse
18.0 faults / 100 tests
Year avg: 12.9 / 100 tests
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • Seat belt buckle missing, damaged or not functioning as intended
  • A seat belt:
Other
▼ 10.1% worse
51.4 faults / 100 tests
Year avg: 46.7 / 100 tests
  • Engine MIL inoperative or indicating a malfunction
  • Exhaust emits excessive dense blue or clearly visible black smoke during acceleration which would obscure the view of other road users
  • 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
  • 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
0 520 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: 160
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 148
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 121
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 103
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 73
Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
ADVISORY
Occurrences: 58
Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
ADVISORY
Occurrences: 42
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 34
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 29
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 22

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 29
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 22
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 18
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 15
Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
FAIL
Occurrences: 14
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 14
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 13
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 12
Beam image obviously incorrect
FAIL
Occurrences: 11
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 7