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Porsche 911 - 1985

94.2 faults per 100 tests
Year average for all cars of 1985 is 240.5 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 1985. Sample size: 301 cars, 550 tests and 518 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 301 cars

The 1985 Porsche 911 shows a significantly lower overall defect rate compared to the average car of the same year, with only 94 defects per 100 vehicles, in contrast to the average of 238. The model excels particularly in areas such as brakes, steering, and body structure, each showing much lower defect rates than the average. Notably, defects related to brakes are just 30.91% in this model compared to 83.68% for the average car. Mileage trends indicate that defects increase with mileage, but even at higher mileages, the 911 performs better than typical vehicles of its age.

Cars by mileage segment

Total: 301 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
▲ 63.0% better
30.9 faults / 100 tests
Year avg: 83.5 / 100 tests
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Excessive fluctuation in brake effort through each wheel revolution
  • Brake hose ferrules: excessively corroded
  • Brake hose ferrules: excessively corroded
Steering
▲ 84.9% better
4.7 faults / 100 tests
Year avg: 31.1 / 100 tests
  • Steering linkage retaining or locking device missing or ineffective
  • Excessive radial movement between the top of the steering column and the shaft indicating an excessively worn top bearing
  • Excessive movement of centre of steering wheel up or down
  • Excessive radial movement between the top of the steering column and the shaft indicating an excessively worn top bearing
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 49.8% better
11.3 faults / 100 tests
Year avg: 22.5 / 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
  • Obligatory mirror or device missing
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 20.1% better
45.8 faults / 100 tests
Year avg: 57.3 / 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
  • 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
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
Wheels & Suspension
▲ 64.2% better
57.5 faults / 100 tests
Year avg: 160.6 / 100 tests
  • A wheel bearing: with excessive play
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
  • A shock absorber damaged … or showing signs of severe leakage
Body/Structure
▲ 74.6% better
14.2 faults / 100 tests
Year avg: 55.8 / 100 tests
  • Exhaust system has a major leak or is insecure
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • Exhaust system has a major leak or is insecure
  • 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
Equipment
▲ 75.1% better
4.4 faults / 100 tests
Year avg: 17.7 / 100 tests
  • 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
  • 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
  • Audible warning:
Other
▲ 62.7% better
19.6 faults / 100 tests
Year avg: 52.6 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Emissions test unable to be completed
  • Emissions levels exceed default limits
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users

Fault rate by mileage segment

Model    Year average
0 448 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)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 54
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 43
A wheel bearing: with excessive play
ADVISORY
Occurrences: 40
Significant brake effort recorded with no brake applied indicating a binding brake
ADVISORY
Occurrences: 30
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: 23
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
MINOR
Occurrences: 18
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 18
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 16
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 15
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 15

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: 23
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 15
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 12
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 11
Headlamp emitted colour, position or intensity not in accordance with the requirements
FAIL
Occurrences: 8
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 8
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 8
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 7
Emissions levels exceed default limits
FAIL
Occurrences: 6
Brake hose ferrules: excessively corroded
FAIL
Occurrences: 6