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Porsche 911 - 1988

76.6 faults per 100 tests
Year average for all cars of 1988 is 253.5 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 1988. Sample size: 453 cars, 815 tests and 624 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 453 cars

The 1988 Porsche 911 has an overall defect rate of 77 defects per 100 vehicles, significantly lower than the yearly average of 249 defects per 100 vehicles, marking a 69% improvement. The model shows a notable trend in defect rates, increasing with mileage, particularly in the highest mileage category where it records 289 defects per 100 vehicles. It excels in several categories such as brakes, steering, and body structure, with defect rates far below average. In contrast, there are no specific categories where this model stands out negatively, indicating a strong performance across the board.

Cars by mileage segment

Total: 453 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
▲ 69.3% better
29.2 faults / 100 tests
Year avg: 95.2 / 100 tests
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Brake hose ferrules: excessively corroded
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Excessive fluctuation in brake effort through each wheel revolution
  • Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▲ 86.8% better
3.7 faults / 100 tests
Year avg: 28.0 / 100 tests
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
  • Free play in the steering, measured at the rim of the steering wheel is: excessive
  • A steering ball joint: with excessive wear or free play
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • A steering linkage component with: excessive movement between components or likely to become detached
Visibility
▲ 54.2% better
9.8 faults / 100 tests
Year avg: 21.4 / 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
  • Wiper blade: missing or obviously not clearing the windscreen
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 54.6% better
29.2 faults / 100 tests
Year avg: 64.3 / 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
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • The aim of a headlamp is not within limits laid down in the requirements
  • The aim of a headlamp is not within limits laid down in the requirements
  • A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
Wheels & Suspension
▲ 68.6% better
50.6 faults / 100 tests
Year avg: 161.2 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A wheel bearing: with excessive play
  • A shock absorber damaged … or showing signs of severe leakage
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 83.9% better
10.3 faults / 100 tests
Year avg: 64.0 / 100 tests
  • 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
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • Fuel pipe or hose: damaged
Equipment
▲ 91.9% better
1.5 faults / 100 tests
Year avg: 18.5 / 100 tests
  • A seat belt: or flexible stalk damaged
  • 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
  • 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
▲ 65.2% better
18.9 faults / 100 tests
Year avg: 54.3 / 100 tests
  • Emissions levels exceed default limits
  • Emissions levels exceed the manufacturer’s specified limits
  • 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
  • Emissions levels exceed default limits

Fault rate by mileage segment

Model    Year average
0 480 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: 61
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 53
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 40
A wheel bearing: with excessive play
ADVISORY
Occurrences: 38
Significant brake effort recorded with no brake applied indicating a binding brake
ADVISORY
Occurrences: 30
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 23
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 23
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 21
Emissions levels exceed default limits
FAIL
Occurrences: 17
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: 16

Serious faults (Top 10)

The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 23
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 21
Emissions levels exceed default limits
FAIL
Occurrences: 17
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: 16
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 11
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 11
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 8
Beam image obviously incorrect
FAIL
Occurrences: 6
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 5
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 5