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Porsche 911 - 1983

86.0 faults per 100 tests
Year average for all cars of 1983 is 180.1 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 1983. Sample size: 119 cars, 179 tests and 154 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 119 cars

The 1983 Porsche 911 has an overall defect rate of 86 per 100 vehicles, significantly lower than the yearly average of 180 per 100, indicating a performance that is 52% better than average. The model exhibits particularly strong results in categories such as brakes, steering, and body structure, where it has notably fewer defects compared to typical vehicles of the same year. Mileage trends show that defects are more common in lower mileage ranges, with the highest rates occurring in vehicles with 31,000 to 62,000 miles. Overall, the Porsche 911 stands out for its reliability across several key areas, making it a robust choice from its era.

Cars by mileage segment

Total: 119 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
▲ 57.5% better
26.8 faults / 100 tests
Year avg: 63.1 / 100 tests
  • Brake hose ferrules: excessively corroded
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • 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 bulging under pressure
Steering
▲ 60.1% better
6.7 faults / 100 tests
Year avg: 16.8 / 100 tests
  • 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
▲ 19.8% better
13.4 faults / 100 tests
Year avg: 16.7 / 100 tests
  • 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
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 25.3% better
34.6 faults / 100 tests
Year avg: 46.3 / 100 tests
  • Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
  • 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
  • Headlamp reflector or lens: slightly defective
Wheels & Suspension
▲ 50.4% better
55.9 faults / 100 tests
Year avg: 112.7 / 100 tests
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A wheel bearing: with excessive play
  • A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 89.4% better
4.5 faults / 100 tests
Year avg: 42.3 / 100 tests
  • Body, cab or chassis: excessively corroded at mounting points
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • 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
▲ 16.5% better
10.1 faults / 100 tests
Year avg: 12.1 / 100 tests
  • Audible warning:
  • 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
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
Other
▲ 60.0% better
20.1 faults / 100 tests
Year avg: 50.2 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Emissions levels exceed default limits

Fault rate by mileage segment

Model    Year average
0 428 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)

Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 16
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 14
A wheel bearing: with excessive play
ADVISORY
Occurrences: 13
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 9
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 7
A seat belt: webbing or flexible stalk significantly stretched or weakened
ADVISORY
Occurrences: 6
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 6
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 5
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 5
Significant brake effort recorded with no brake applied indicating a binding brake
ADVISORY
Occurrences: 4

Serious faults (Top 10)

Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 6
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 4
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
FAIL
Occurrences: 3
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 3
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 2
A battery insecure: and likely to fall from carrier or cause a short circuit
FAIL
Occurrences: 2
Brake hose bulging under pressure
FAIL
Occurrences: 2
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 2
Beam image obviously incorrect
FAIL
Occurrences: 2
Audible warning:
FAIL
Occurrences: 2