Alfa romeo 4C - 2017
25.6 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 Alfa romeo 4C, model year 2017.
Sample size: 159 cars, 344 tests and 88 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: 159 cars
The 2017 Alfa Romeo 4C has a significantly lower overall defect rate, with 26 defects per 100 vehicles, compared to the yearly average of 134 defects per 100 vehicles, marking an impressive 81% improvement. This model shows particularly strong performance in several categories, including brakes and steering, where it has nearly eliminated defects, boasting rates of 10% and 0% respectively, compared to much higher averages. Additionally, it performs well in visibility and lights & electrics, with defects significantly below average. Mileage trends indicate higher defect rates for vehicles with lower mileage, which is atypical and suggests a need for further investigation into the model's early performance.
Cars by mileage segment
Total: 159 cars
More model years for Alfa romeo 4C
Other models from Alfa romeo
Categories
Brakes
▲ 85.5% better
10.5 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
- Insufficient reserve travel
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 5.6 / 100 tests
Visibility
▲ 71.7% better
4.1 faults / 100 tests
Year avg: 14.5 / 100 tests
Lights & Electrics
▲ 85.8% better
2.9 faults / 100 tests
Year avg: 20.4 / 100 tests
- Beam image obviously incorrect
Wheels & Suspension
▲ 78.5% better
30.8 faults / 100 tests
Year avg: 143.1 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A suspension joint dust cover: severely deteriorated
- A suspension pin, bush, joint or bearing: excessively worn
- A shock absorber damaged … or showing signs of severe leakage
- A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 91.4% better
0.6 faults / 100 tests
Year avg: 7.0 / 100 tests
Equipment
▲ 77.8% better
0.6 faults / 100 tests
Year avg: 2.7 / 100 tests
Other
▲ 81.1% better
1.7 faults / 100 tests
Year avg: 9.0 / 100 tests
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: 21
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 10
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 8
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 6
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 4
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 4
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 4
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 3
Beam image obviously incorrect
FAIL
Occurrences: 2
Insufficient reserve travel
FAIL
Occurrences: 2
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 4
Beam image obviously incorrect
FAIL
Occurrences: 2
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 2
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 2
Insufficient reserve travel
FAIL
Occurrences: 2
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 1
Excessive fluctuation in brake effort through each wheel revolution
FAIL
Occurrences: 1
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 1
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 1
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 1