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Porsche 911 - 1994

85.1 faults per 100 tests
Year average for all cars of 1994 is 308.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 1994. Sample size: 622 cars, 1,111 tests and 945 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 622 cars

The 1994 Porsche 911 has a significantly lower overall defect rate of 85 per 100 vehicles, compared to the average of 304 per 100 for cars of the same year, indicating a 72% improvement. This model excels in several categories, notably brakes, steering, and body structure, where it shows defects at rates far below the average, achieving over 80% better performance. Mileage trends reveal that defect rates vary across different mileages, yet the model remains consistently better than average, particularly in the higher mileage brackets. Overall, the Porsche 911 demonstrates a strong reliability profile, especially in critical areas such as brakes and visibility.

Cars by mileage segment

Total: 622 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
▲ 80.1% better
23.9 faults / 100 tests
Year avg: 120.1 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Excessive fluctuation in brake effort through each wheel revolution
  • Parking brake efficiency: below minimum requirement
  • Brake hose ferrules: excessively corroded
  • Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▲ 88.0% better
3.8 faults / 100 tests
Year avg: 31.6 / 100 tests
  • Power steering fluid leaking or system malfunctioning
  • Power steering pipe, hose or wiring: excessively damaged or corroded
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
  • A steering ball joint: with excessive wear or free play
Visibility
▲ 80.6% better
4.7 faults / 100 tests
Year avg: 24.2 / 100 tests
  • 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
  • Wiper blade: missing or obviously not clearing the windscreen
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: defective
Lights & Electrics
▲ 61.4% better
25.6 faults / 100 tests
Year avg: 66.3 / 100 tests
  • The aim of a headlamp is not within limits laid down in the requirements
  • Lamp emitted colour, position or intensity not in accordance with the requirements
  • 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
  • Stop lamp(s): all missing or inoperative
Wheels & Suspension
▲ 66.1% better
68.2 faults / 100 tests
Year avg: 201.4 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A shock absorber damaged … or showing signs of severe leakage
  • A suspension pin, bush, joint or bearing: excessively worn
  • A spring: or spring component fractured or seriously weakened
Body/Structure
▲ 91.5% better
7.0 faults / 100 tests
Year avg: 82.0 / 100 tests
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • Exhaust system has a major leak or is insecure
  • A transmission shaft flexible coupling: excessively deteriorated
Equipment
▲ 90.8% better
2.3 faults / 100 tests
Year avg: 24.9 / 100 tests
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • Audible warning not in accordance with requirements
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • Seat belt not functioning as intended or of an incorrect type
Other
▲ 47.3% better
34.6 faults / 100 tests
Year avg: 65.7 / 100 tests
  • Emissions levels exceed the manufacturer’s specified limits
  • Emissions levels exceed default limits
  • 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
  • Lambda coefficient outside the default limits or the range specified by the manufacturer

Fault rate by mileage segment

Model    Year average
0 514 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: 167
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 107
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 71
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 66
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 52
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 48
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 25
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 18
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 15
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: 14

Serious faults (Top 10)

The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 15
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: 14
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 11
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 10
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 9
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 8
Stop lamp(s): all missing or inoperative
FAIL
Occurrences: 8
Emissions levels exceed the manufacturer’s specified limits
FAIL
Occurrences: 8
Light source and lamp not compatible
FAIL
Occurrences: 7
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 6