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Porsche 911 - 1987

95.2 faults per 100 tests
Year average for all cars of 1987 is 238.3 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 1987. Sample size: 438 cars, 811 tests and 772 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 438 cars

The 1987 Porsche 911 has a significantly lower overall defect rate compared to the average car of the same year, with 95 defects per 100 vehicles compared to 234. This model excels particularly in categories such as brakes and steering, where it performs much better than average, indicating fewer issues in these areas. Additionally, it shows improved results in visibility and lights & electrics, while the defect rates increase with mileage, peaking in the highest mileage range. Overall, the Porsche 911 stands out as a reliable vehicle of its era, with notable strengths across various defect categories.

Cars by mileage segment

Total: 438 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
▲ 57.8% better
37.0 faults / 100 tests
Year avg: 87.7 / 100 tests
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Brake hose ferrules: excessively corroded
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Excessive fluctuation in brake effort through each wheel revolution
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
Steering
▲ 89.0% better
3.2 faults / 100 tests
Year avg: 29.1 / 100 tests
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • Excessive roughness in operation of steering
  • 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
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
Visibility
▲ 27.1% better
14.8 faults / 100 tests
Year avg: 20.3 / 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 or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: defective
  • Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 34.9% better
40.9 faults / 100 tests
Year avg: 62.8 / 100 tests
  • 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
  • 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
▲ 65.9% better
50.8 faults / 100 tests
Year avg: 148.8 / 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 suspension pin, bush, joint or bearing: excessively worn
  • A wheel bearing: with excessive play
  • A shock absorber damaged … or showing signs of severe leakage
Body/Structure
▲ 70.2% better
16.0 faults / 100 tests
Year avg: 53.7 / 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
  • Exhaust system has a major leak or is insecure
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • Fuel pipe or hose: damaged
Equipment
▲ 75.1% better
5.2 faults / 100 tests
Year avg: 20.9 / 100 tests
  • A statutory seat belt missing
  • 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
  • Audible warning:
  • Seat belt retractor not functioning as intended
Other
▲ 57.7% better
22.4 faults / 100 tests
Year avg: 53.0 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Exhaust emits excessive dense blue or clearly visible black smoke during acceleration which would obscure the view of other road users
  • Any part of the noise suppression system: insecure
  • Emissions levels exceed default limits
  • Exhaust noise levels in excess of those permitted

Fault rate by mileage segment

Model    Year average
0 472 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: 65
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 53
A wheel bearing: with excessive play
ADVISORY
Occurrences: 39
Significant brake effort recorded with no brake applied indicating a binding brake
ADVISORY
Occurrences: 31
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: 26
Excessive fluctuation in brake effort through each wheel revolution
ADVISORY
Occurrences: 26
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 24
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 24
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 22
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 21

Serious faults (Top 10)

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: 26
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 24
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 21
Emissions levels exceed default limits
FAIL
Occurrences: 19
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 13
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 12
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 12
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 9
Beam image obviously incorrect
FAIL
Occurrences: 8
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 5