Porsche 944 - 1990
170.8 faults per 100 tests
Year average for all cars of 1990 is 257.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Porsche 944, model year 1990.
Sample size: 372 cars, 672 tests and 1,148 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: 372 cars
The 1990 Porsche 944 has an overall defect rate of 171 per 100 vehicles, which is significantly lower than the average of 256 per 100 vehicles for cars of the same year, marking a 33% improvement. Notably, the model performs exceptionally well in categories such as brakes, steering, and visibility, with defect rates considerably lower than the average. In terms of mileage-related trends, the defect rate increases with mileage, particularly in the highest mileage segment (124,000+ miles), which shows a notable spike. However, there are no standout negative categories for this model, highlighting its reliability compared to its peers.
Cars by mileage segment
Total: 372 cars
More model years for Porsche 944
Other models from Porsche
Categories
Brakes
▲ 20.1% better
81.3 faults / 100 tests
Year avg: 101.8 / 100 tests
- Brake pipe damaged or excessively corroded
- Brake hose ferrules: excessively corroded
- Excessive fluctuation in brake effort through each wheel revolution
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake pipe damaged or excessively corroded
Steering
▲ 65.2% better
8.9 faults / 100 tests
Year avg: 25.6 / 100 tests
- Power steering fluid leaking or system malfunctioning
- A steering linkage component with: relative movement between components which should be fixed
- Excessive wear or play in a universal joint or a flexible coupling excessively deteriorated
- Free play in the steering, measured at the rim of the steering wheel is: excessive
- A steering linkage component: fractured or deformed
Visibility
▲ 29.7% better
14.9 faults / 100 tests
Year avg: 21.2 / 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
- Wiper blade: defective
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
Lights & Electrics
▲ 33.6% better
39.0 faults / 100 tests
Year avg: 58.7 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
- 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
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▲ 22.3% better
137.5 faults / 100 tests
Year avg: 177.0 / 100 tests
- A wheel bearing: with excessive play
- Tyre tread depth not in accordance with the requirements
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A suspension pin, bush, joint or bearing: excessively worn
- A suspension component: excessively damaged or corroded
Body/Structure
▲ 55.5% better
27.7 faults / 100 tests
Year avg: 62.3 / 100 tests
- 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
- Exhaust system has a major leak or is insecure
- 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
▲ 90.4% better
1.5 faults / 100 tests
Year avg: 15.7 / 100 tests
- 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
- Audible warning:
Other
▲ 40.0% better
31.0 faults / 100 tests
Year avg: 51.7 / 100 tests
- Emissions levels exceed default limits
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- 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)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 113
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 91
A wheel bearing: with excessive play
ADVISORY
Occurrences: 79
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 72
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 63
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 60
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 51
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 31
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 23
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 21
Serious faults (Top 10)
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 21
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 17
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 14
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 13
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 13
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 12
Emissions levels exceed default limits
FAIL
Occurrences: 12
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 12
Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
FAIL
Occurrences: 12
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: 11