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Hyundai I40 - 2017

130.6 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 Hyundai I40, model year 2017. Sample size: 2,549 cars, 5,501 tests and 7,182 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 2,549 cars

The 2017 Hyundai i40 has an overall defect rate of 131 per 100 vehicles, which is slightly better than the average of 134 per 100 vehicles, marking a 2% improvement. Notably, the i40 performs well in categories such as steering, visibility, body structure, and equipment, all showing significantly fewer defects than the average. However, it exhibits a higher defect rate in brakes and other categories compared to the yearly averages. Additionally, the defect rates increase with mileage, particularly in the higher mileage brackets, indicating a trend that is consistent with the overall performance of vehicles in this age group.

Cars by mileage segment

Total: 2,549 cars

Categories

Brakes
▼ 21.4% worse
88.0 faults / 100 tests
Year avg: 72.5 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 44.6% better
3.1 faults / 100 tests
Year avg: 5.6 / 100 tests
Visibility
▲ 22.8% better
11.2 faults / 100 tests
Year avg: 14.5 / 100 tests
Lights & Electrics
▲ 17.2% better
16.9 faults / 100 tests
Year avg: 20.4 / 100 tests
Wheels & Suspension
▲ 11.8% better
126.2 faults / 100 tests
Year avg: 143.1 / 100 tests
  • 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
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 52.9% better
3.3 faults / 100 tests
Year avg: 7.0 / 100 tests
Equipment
▲ 55.6% better
1.2 faults / 100 tests
Year avg: 2.7 / 100 tests
Other
▼ 25.6% worse
11.3 faults / 100 tests
Year avg: 9.0 / 100 tests
  • 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
0 318 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 1,753
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 833
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 652
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 632
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 232
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 200
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 193
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 176
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 134
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 110

Serious faults (Top 10)

Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 176
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 134
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 110
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 70
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 66
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 64
Tyre pressure monitoring system malfunctioning or obviously not working
FAIL
Occurrences: 60
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 49
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 42
Excessive fluctuation in brake effort through each wheel revolution
FAIL
Occurrences: 41