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Porsche 911 - 2017

30.0 faults per 100 tests
Year average for all cars of 2017 is 137.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 2017. Sample size: 2,767 cars, 7,132 tests and 2,143 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 2,767 cars

The 2017 Porsche 911 shows a significantly lower overall defect rate with 30 defects per 100 vehicles, compared to the yearly average of 134 defects per 100 vehicles, marking a reduction of 78%. This model excels particularly in categories such as brakes, steering, and visibility, where it has far fewer issues than the average car. Notably, it has no defects reported for steering and a minimal presence in other critical areas like lights and electrics. Mileage-related trends show that defects increase with mileage, but the Porsche 911 consistently outperforms the average across all mileage brackets.

Cars by mileage segment

Total: 2,767 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
▲ 91.0% better
6.5 faults / 100 tests
Year avg: 72.5 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
  • Brake lining or pad: worn below 1.5mm
  • Brake lining or pad: worn below 1.5mm
  • Brake pipe damaged or excessively corroded
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 5.6 / 100 tests
Visibility
▲ 71.0% better
4.2 faults / 100 tests
Year avg: 14.5 / 100 tests
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Windscreen or window excessively tinted: but not adversely affecting driver’s view
  • 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
Lights & Electrics
▲ 87.3% better
2.6 faults / 100 tests
Year avg: 20.4 / 100 tests
  • The aim of a headlamp is not within limits laid down in the requirements
  • A lens defective: which has no effect on emitted light
  • Beam image obviously incorrect
  • The aim of a headlamp is not within limits laid down in the requirements
  • Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
Wheels & Suspension
▲ 68.5% better
45.1 faults / 100 tests
Year avg: 143.1 / 100 tests
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 94.3% better
0.4 faults / 100 tests
Year avg: 7.0 / 100 tests
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • A door will not open using the relevant control or close properly
  • Exhaust system has a major leak or is insecure
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A passenger seat: with a defective structure or the backrest cannot be retained in the upright position
Equipment
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 2.7 / 100 tests
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 85.6% better
1.3 faults / 100 tests
Year avg: 9.0 / 100 tests
  • 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
  • Any part of the noise suppression system: insecure
  • Engine MIL inoperative or indicating a malfunction

Fault rate by mileage segment

Model    Year average
0 318 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: 861
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 367
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 129
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 88
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 77
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 76
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 54
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 40
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 40
The aim of a headlamp is not within limits laid down in the requirements
PRS
Occurrences: 39

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 76
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 54
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 37
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 20
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 18
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 16
Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
FAIL
Occurrences: 8
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 7
Beam image obviously incorrect
FAIL
Occurrences: 6
A wheel: with a loose or missing wheel nut, bolt or stud
FAIL
Occurrences: 6