Porsche BOXSTER - 1998
248.3 faults per 100 tests
Year average for all cars of 1998 is 342.9 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche BOXSTER, model year 1998.
Sample size: 877 cars, 1,886 tests and 4,682 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: 877 cars
The 1998 Porsche Boxster has an overall defect rate of 248 defects per 100 vehicles, which is 27% lower than the average for cars of the same year at 339 defects per 100. It shows a clear improvement in several categories, particularly in steering, visibility, and body/structure, where it significantly outperforms the average, with defect rates much lower than the typical figures. Additionally, mileage-related trends indicate that as the mileage increases, the defect rate for the Boxster also rises, but it remains more favourable than the average across all mileage segments. Overall, the Porsche Boxster demonstrates strong reliability compared to its contemporaries, particularly in areas related to safety and structural integrity.
Cars by mileage segment
Total: 877 cars
Categories
Brakes
▲ 0.1% better
149.3 faults / 100 tests
Year avg: 149.4 / 100 tests
- Brake pipe damaged or excessively corroded
- Brake pipe damaged or excessively corroded
- Brake disc or drum: significantly and obviously worn
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
Steering
▲ 60.2% better
10.2 faults / 100 tests
Year avg: 25.6 / 100 tests
- Power steering fluid leaking or system malfunctioning
- 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.
- A steering ball joint: with excessive wear or free play
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 23.6% better
20.1 faults / 100 tests
Year avg: 26.3 / 100 tests
- 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
- 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: defective
Lights & Electrics
▲ 14.4% better
57.1 faults / 100 tests
Year avg: 66.7 / 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
- A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
- Headlamp reflector or lens: slightly defective
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
- Beam image obviously incorrect
Wheels & Suspension
▲ 32.4% better
174.3 faults / 100 tests
Year avg: 257.8 / 100 tests
- A suspension pin, bush, joint or bearing: excessively worn
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A shock absorber damaged … or showing signs of severe leakage
- Tyre tread depth not in accordance with the requirements
- A suspension component: excessively damaged or corroded
Body/Structure
▲ 68.6% better
25.3 faults / 100 tests
Year avg: 80.5 / 100 tests
- Exhaust system has a major leak or is insecure
- Exhaust system has a major leak or is insecure
- A transmission shaft constant velocity joint boot: severely deteriorated
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▲ 51.0% better
10.0 faults / 100 tests
Year avg: 20.4 / 100 tests
- Audible warning:
- 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
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 14.9% better
50.2 faults / 100 tests
Year avg: 59.0 / 100 tests
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- 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
- Emissions levels exceed default limits
- 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 pipe damaged or excessively corroded
ADVISORY
Occurrences: 693
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 424
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 359
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 301
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 292
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 259
Headlamp reflector or lens: slightly defective
MINOR
Occurrences: 129
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 104
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 104
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 91
Serious faults (Top 10)
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 91
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 83
Emissions levels exceed default limits
FAIL
Occurrences: 46
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 45
Audible warning:
FAIL
Occurrences: 45
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 42
Beam image obviously incorrect
FAIL
Occurrences: 40
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 35
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 32
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 29