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Porsche 911 - 1992

82.4 faults per 100 tests
Year average for all cars of 1992 is 300.1 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 1992. Sample size: 261 cars, 387 tests and 319 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 261 cars

The 1992 Porsche 911 demonstrates a significantly lower overall defect rate compared to the average car of the same year, with 82 defects per 100 vehicles versus 297 on average, marking a remarkable 72% improvement. Notably, the Porsche excels in several categories, particularly in brakes, steering, visibility, and lights, where it shows a drastic reduction in defects compared to average figures. While mileage does indicate a trend of increasing defects, the Porsche maintains a relatively robust performance across all mileage segments, with the highest defect rate observed in the 124,000+ miles category at 355 defects per 100 vehicles. Overall, this model stands out for its reliability in several critical areas, reinforcing its reputation as a well-engineered sports car.

Cars by mileage segment

Total: 261 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
▲ 79.5% better
24.3 faults / 100 tests
Year avg: 118.3 / 100 tests
  • Brake hose ferrules: excessively corroded
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Anti-slip provision missing, loose or worn smooth
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 68.5% better
9.8 faults / 100 tests
Year avg: 31.1 / 100 tests
  • A steering ball joint: with excessive wear or free play
  • Power steering fluid leaking or system malfunctioning
  • Power steering fluid leaking or system malfunctioning
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
  • Power steering fluid: level below minimum mark
Visibility
▲ 81.1% better
4.7 faults / 100 tests
Year avg: 24.9 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: defective
  • 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
Lights & Electrics
▲ 63.3% better
24.8 faults / 100 tests
Year avg: 67.6 / 100 tests
  • The aim of a headlamp is not within limits laid down in 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
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
  • The aim of a headlamp is not within limits laid down in the requirements
  • Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
Wheels & Suspension
▲ 74.5% better
50.1 faults / 100 tests
Year avg: 196.2 / 100 tests
  • 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 shock absorber damaged … or showing signs of severe leakage
  • A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
Body/Structure
▲ 76.7% better
18.6 faults / 100 tests
Year avg: 79.7 / 100 tests
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • A door hinge, catch or pillar: excessively deteriorated
  • Bumper: insecure or with damage likely to cause injury when grazed or contacted
  • Exhaust system has a major leak or is insecure
Equipment
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 20.3 / 100 tests
Other
▲ 47.4% better
32.6 faults / 100 tests
Year avg: 62.0 / 100 tests
  • Emissions levels exceed the manufacturer’s specified limits
  • Emissions test unable to be completed
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Emissions levels exceed default limits
  • Lambda coefficient outside the default limits or the range specified by the manufacturer

Fault rate by mileage segment

Model    Year average
0 518 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: 49
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 29
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 24
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 20
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 19
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 14
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 11
Power steering fluid leaking or system malfunctioning
ADVISORY
Occurrences: 9
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 8
Bumper: insecure or with damage likely to cause injury when grazed or contacted
ADVISORY
Occurrences: 8

Serious faults (Top 10)

The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 14
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 7
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 4
Emissions levels exceed the manufacturer’s specified limits
FAIL
Occurrences: 4
Stop lamp(s): all missing or inoperative
FAIL
Occurrences: 3
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
Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 2
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 2
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
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