Skip to main content

Porsche 911 - 2005

123.2 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 Porsche 911, model year 2005. Sample size: 3,478 cars, 7,645 tests and 9,415 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 3,478 cars

The 2005 Porsche 911 shows a significantly lower overall defect rate compared to the average car of the same year, with 123 defects per 100 vehicles versus the average of 376. This model excels particularly in categories like Brakes, Steering, and Visibility, where it records defect rates much lower than the average. However, as mileage increases, the defect rates for the Porsche 911 tend to rise, especially in the highest mileage category, where it still performs better overall compared to the average. Notably, there are no standout negative categories for this model, highlighting its strong reliability.

Cars by mileage segment

Total: 3,478 cars

More model years for Porsche 911

1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

Other models from Porsche

Porsche 718 CAYMAN GT4 Porsche 718 SPYDER Porsche 911 Porsche 924 Porsche 928 Porsche 944 Porsche 968 Porsche BOXSTER Porsche CARRERA Porsche CAYENNE Porsche MACAN Porsche PANAMERA Porsche TAYCAN

Categories

Brakes
▲ 42.8% better
90.6 faults / 100 tests
Year avg: 158.5 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake lining or pad: worn below 1.5mm
  • Excessive fluctuation in brake effort through each wheel revolution
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake pipe damaged or excessively corroded
Steering
▲ 77.7% better
5.0 faults / 100 tests
Year avg: 22.4 / 100 tests
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • A steering ball joint: with excessive wear or free play
  • 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.
  • Power steering fluid leaking or system malfunctioning
Visibility
▲ 71.5% better
8.1 faults / 100 tests
Year avg: 28.4 / 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
  • Wiper blade: defective
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 77.5% better
24.8 faults / 100 tests
Year avg: 110.1 / 100 tests
  • The aim of a headlamp is not within limits laid down in the requirements
  • Headlamp reflector or lens: slightly defective
  • 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
  • The aim of a headlamp is not within limits laid down in the requirements
Wheels & Suspension
▲ 71.9% better
88.2 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 spring: or spring component fractured or seriously weakened
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A shock absorber damaged … or showing signs of severe leakage
Body/Structure
▲ 85.2% better
9.1 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
  • 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
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▲ 80.6% better
2.5 faults / 100 tests
Year avg: 12.9 / 100 tests
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • A seat belt:
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • A seat belt: or flexible stalk damaged
Other
▲ 61.5% better
18.0 faults / 100 tests
Year avg: 46.7 / 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
  • Emissions levels exceed the manufacturer’s specified limits
  • Lambda coefficient outside the default limits or the range specified by the manufacturer
  • Engine MIL inoperative or indicating a malfunction

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)

Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 1,542
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 1,171
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 1,144
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 720
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 630
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 347
Lamp emitted colour, position or intensity not in accordance with the requirements
ADVISORY
Occurrences: 220
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 180
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 179
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 173

Serious faults (Top 10)

Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 173
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 127
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 117
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 94
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 56
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 50
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 47
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 40
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 38
Emissions levels exceed default limits
FAIL
Occurrences: 35