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Porsche 911 - 1997

78.2 faults per 100 tests
Year average for all cars of 1997 is 338.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 1997. Sample size: 859 cars, 1,553 tests and 1,214 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 859 cars

The 1997 Porsche 911 shows a significantly lower overall defect rate, with 78 defects per 100 vehicles compared to the average of 335 defects for cars of the same year, marking a 77% improvement. The model exhibits particularly impressive performance in categories like brakes and steering, with defects occurring at rates of just 33% and 3% respectively, compared to much higher averages. While mileage-related trends indicate increasing defect rates with higher mileage, the Porsche 911 stands out positively across multiple categories, suggesting robust engineering and reliability. Overall, this model demonstrates a commendable resilience in maintaining fewer faults compared to its peers.

Cars by mileage segment

Total: 859 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
▲ 76.5% better
33.1 faults / 100 tests
Year avg: 141.1 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake hose ferrules: excessively corroded
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Brake pipe damaged or excessively corroded
  • Excessive fluctuation in brake effort through each wheel revolution
Steering
▲ 90.1% better
2.7 faults / 100 tests
Year avg: 27.4 / 100 tests
  • 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
  • A steering ball joint: with excessive wear or free play
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • Power steering fluid leaking or system malfunctioning
Visibility
▲ 77.4% better
5.7 faults / 100 tests
Year avg: 25.2 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: defective
  • Visibility
  • 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
▲ 59.2% better
26.7 faults / 100 tests
Year avg: 65.5 / 100 tests
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
  • Lamp emitted colour, position or intensity not in accordance with the requirements
  • 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
Wheels & Suspension
▲ 77.3% better
56.8 faults / 100 tests
Year avg: 250.7 / 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
▲ 96.7% better
2.8 faults / 100 tests
Year avg: 83.8 / 100 tests
  • Exhaust system has a major leak or is insecure
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • Body, cab or chassis: excessively corroded at mounting points
Equipment
▲ 90.5% better
2.1 faults / 100 tests
Year avg: 22.1 / 100 tests
  • Audible warning:
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • Seat belt buckle missing, damaged or not functioning as intended
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • Audible warning not in accordance with requirements
Other
▲ 56.7% better
26.4 faults / 100 tests
Year avg: 61.0 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • 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
  • Exhaust noise levels in excess of those permitted
  • Lambda coefficient outside the default limits or the range specified by the manufacturer

Fault rate by mileage segment

Model    Year average
0 535 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: 177
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 150
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 119
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 69
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 56
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 34
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 33
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 28
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 25
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 25

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: 22
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 20
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 18
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 15
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 13
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 9
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
FAIL
Occurrences: 8
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 7
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 7
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 6