Kia NIRO - 2018
87.8 faults per 100 tests
Year average for all cars of 2018 is 123.2 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Kia NIRO, model year 2018.
Sample size: 6,369 cars, 15,217 tests and 13,364 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: 6,369 cars
The 2018 KIA Niro has an overall defect rate of 88 defects per 100 vehicles, significantly lower than the average of 120 defects per 100 vehicles, marking a 27% improvement. Mileage-related trends indicate that defect rates increase with mileage, with the highest rates observed in the 93,000 to 124,000 miles range. Notably, the Niro excels in several categories, particularly brakes, steering, and body/structure, where it shows a much lower defect percentage compared to the average. No standout areas of concern were identified, highlighting the model's reliability in comparison to its peers.
Cars by mileage segment
Total: 6,369 cars
More model years for Kia NIRO
Other models from Kia
Categories
Brakes
▲ 45.6% better
37.4 faults / 100 tests
Year avg: 68.8 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Service brake efficiency: below minimum requirement
- Brake lining or pad: worn below 1.5mm
- Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▲ 78.0% better
1.1 faults / 100 tests
Year avg: 5.0 / 100 tests
- A steering ball joint: with excessive wear or free play
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- 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.
- Track rod or drag link ends seriously misaligned
Visibility
▲ 7.9% better
12.8 faults / 100 tests
Year avg: 13.9 / 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
- 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
Lights & Electrics
▲ 28.4% better
12.6 faults / 100 tests
Year avg: 17.6 / 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 rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
- The aim of a headlamp is not within limits laid down in the requirements
- A lens defective: which has no effect on emitted light
Wheels & Suspension
▲ 14.2% better
108.7 faults / 100 tests
Year avg: 126.7 / 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
- Tyre tread depth not in accordance with the requirements
- 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
Body/Structure
▲ 78.4% better
1.1 faults / 100 tests
Year avg: 5.1 / 100 tests
- A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
- A door will not open using the relevant control or close properly
- A transmission shaft constant velocity joint boot: severely deteriorated
- A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
- A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
Equipment
▲ 77.3% better
0.5 faults / 100 tests
Year avg: 2.2 / 100 tests
- Seat belt buckle missing, damaged or not functioning as intended
- Seat belt buckle missing, damaged or not functioning as intended
- A seat belt:
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- Seat belt buckle missing, damaged or not functioning as intended
Other
▲ 80.0% better
1.4 faults / 100 tests
Year avg: 7.0 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Any part of the noise suppression system: insecure
- Engine MIL inoperative or indicating a malfunction
- Engine MIL inoperative or indicating a malfunction
- 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)
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 3,618
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 2,613
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 1,333
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 425
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 420
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 390
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 293
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 290
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 289
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 246
Serious faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 420
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 293
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 290
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 167
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 87
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 82
Service brake efficiency: below minimum requirement
FAIL
Occurrences: 80
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 77
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 62
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 56