Porsche 911 - 2014
37.6 faults per 100 tests
Year average for all cars of 2014 is 198.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 911, model year 2014.
Sample size: 2,188 cars, 5,557 tests and 2,087 recorded faults.
0%
Less faults compared to the average car of same model year
Less faults compared to the average car of same model year
Quick summary
Total: 2,188 cars
The 2014 Porsche 911 has a significantly lower overall defect rate compared to the average car of the same year, with 38 defects per 100 vehicles compared to 194. This model excels particularly in categories like brakes and steering, showing a remarkable 81% and 98% lower defect rate, respectively. While defects related to tyres are present, they are not the most prominent issue. Mileage trends indicate an increase in defects with higher mileage, but the 911 consistently performs better than average across all mileage segments. Overall, this model stands out for its reliability and lower incidence of defects in crucial areas.
Cars by mileage segment
Total: 2,188 cars
Categories
Brakes
▲ 80.7% better
17.9 faults / 100 tests
Year avg: 92.8 / 100 tests
- Brake pipe damaged or excessively corroded
- Brake disc or drum: significantly and obviously worn
- Brake pipe damaged or excessively corroded
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake lining or pad: worn below 1.5mm
Steering
▲ 98.3% better
0.2 faults / 100 tests
Year avg: 11.9 / 100 tests
- A steering ball joint: with excessive wear or free play
- Power steering fluid leaking or system malfunctioning
Visibility
▲ 70.3% better
5.1 faults / 100 tests
Year avg: 17.2 / 100 tests
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Wiper blade: defective
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: missing or obviously not clearing the windscreen
- Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 92.4% better
3.0 faults / 100 tests
Year avg: 39.5 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- Stop lamp(s): all missing or inoperative
- The aim of a headlamp is not within limits laid down in the requirements
- Stop lamp(s): with a multiple light source up to 1/2 not functioning
- A lens defective: which has no effect on emitted light
Wheels & Suspension
▲ 77.8% better
44.1 faults / 100 tests
Year avg: 198.8 / 100 tests
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A spring: or spring component fractured or seriously weakened
- Tyre tread depth not in accordance with the requirements
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 86.5% better
2.1 faults / 100 tests
Year avg: 15.6 / 100 tests
- A transmission shaft constant velocity joint boot: severely deteriorated
- Exhaust system has a major leak or is insecure
- A driver’s seat: insecure
- A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
- Towbar: obstructing the registration plate or any lamp
Equipment
▲ 80.0% better
0.9 faults / 100 tests
Year avg: 4.5 / 100 tests
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- Seat belt buckle missing, damaged or not functioning as intended
- A seat belt:
- A seat belt: or flexible stalk damaged
- Seat belt buckle missing, damaged or not functioning as intended
Other
▲ 87.9% better
1.9 faults / 100 tests
Year avg: 15.7 / 100 tests
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Emissions levels exceed the manufacturer’s specified limits
- Engine MIL inoperative or indicating a malfunction
- Exhaust emits dense blue or clearly visible black smoke for a continuous period of 5 seconds at idle
- 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
* Metric: faults per 100 tests.
Most common faults (Top 10)
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 449
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 387
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 171
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 141
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 86
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 79
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 74
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 65
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 62
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 54
Serious faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 54
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 35
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 33
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 18
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 16
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 15
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 14
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 8
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 7
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 7