Porsche BOXSTER - 2011
94.0 faults per 100 tests
Year average for all cars of 2011 is 274.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche BOXSTER, model year 2011.
Sample size: 918 cars, 2,044 tests and 1,921 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: 918 cars
The 2011 Porsche Boxster exhibits a significantly lower overall defect rate of 94 defects per 100 vehicles compared to the yearly average of 271 defects per 100 vehicles, making it 65% better than average. When examining mileage-related trends, defects increase with higher mileages, particularly in the 124,000+ miles category. Notably, the Boxster performs exceptionally well in several key areas: it has vastly fewer issues with brakes, steering, visibility, lights and electrics, and body structure compared to the typical car of the same year. Overall, this model demonstrates a strong reliability profile, particularly in critical safety categories.
Cars by mileage segment
Total: 918 cars
Categories
Brakes
▲ 32.7% better
74.0 faults / 100 tests
Year avg: 109.9 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake hose ferrules: excessively corroded
- Brake pipe damaged or excessively corroded
- Brake pipe damaged or excessively corroded
- Brake disc or drum: significantly and obviously worn
Steering
▲ 82.9% better
2.7 faults / 100 tests
Year avg: 15.8 / 100 tests
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- 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: missing or no longer prevents the ingress of dirt etc.
- Power steering fluid leaking or system malfunctioning
Visibility
▲ 56.6% better
9.2 faults / 100 tests
Year avg: 21.2 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: missing or obviously not clearing the windscreen
- Obligatory mirror or device: slightly damaged or loose
- Wiper blade: defective
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 82.1% better
12.3 faults / 100 tests
Year avg: 68.9 / 100 tests
- Headlamp reflector or lens: slightly defective
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
- 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
Wheels & Suspension
▲ 69.0% better
82.7 faults / 100 tests
Year avg: 266.4 / 100 tests
- 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
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 93.6% better
2.0 faults / 100 tests
Year avg: 31.3 / 100 tests
- Exhaust system has a major leak or is insecure
- Fuel system: leaking, or missing or ineffective filler cap
- Exhaust system has a major leak or is insecure
Equipment
▲ 85.1% better
1.1 faults / 100 tests
Year avg: 7.4 / 100 tests
- Audible warning:
- Audible warning control insecure
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- Audible warning not in accordance with requirements
- ESC MIL indicates a system malfunction
Other
▲ 85.6% better
4.0 faults / 100 tests
Year avg: 27.8 / 100 tests
- Any part of the noise suppression system: insecure
- Emissions levels exceed default 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 test unable to be completed
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 370
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 343
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 217
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 178
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 128
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 46
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 34
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 30
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 30
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 29
Serious faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 26
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 26
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 20
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 17
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 15
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 15
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 12
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 11
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 10
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 7