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Kia OPTIMA - 2015

167.9 faults per 100 tests
Year average for all cars of 2015 is 174.5 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Kia OPTIMA, model year 2015. Sample size: 640 cars, 1,426 tests and 2,394 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 640 cars

The 2015 KIA Optima displays a slightly lower overall defect rate, with 168 defects per 100 vehicles compared to the annual average of 170. Notably, the Optima performs significantly better than average in categories such as Lights & Electrics, Body/Structure, Equipment, and Other, with defect rates considerably lower than those of the average vehicle. However, it faces challenges in the Brakes and Steering categories, where defect rates are higher than average. A clear trend indicates that as mileage increases, the defect rate for the Optima also rises, particularly in the higher mileage brackets.

Cars by mileage segment

Total: 640 cars

Categories

Brakes
▼ 37.1% worse
116.1 faults / 100 tests
Year avg: 84.7 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake pipe damaged or excessively corroded
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▼ 24.2% worse
12.3 faults / 100 tests
Year avg: 9.9 / 100 tests
  • 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.
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • A steering ball joint: with excessive wear or free play
  • A steering ball joint: worn to the extent there is a serious risk of detachment
Visibility
▲ 11.8% better
14.2 faults / 100 tests
Year avg: 16.1 / 100 tests
  • Obligatory mirror or device: slightly damaged or loose
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
  • Wiper blade: defective
Lights & Electrics
▲ 35.8% better
19.9 faults / 100 tests
Year avg: 31.0 / 100 tests
  • A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
  • Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • Lamp: multiple light source up to a half not functioning
  • which shows red light to the front, white light to the rear or has heavily reduced light intensity
Wheels & Suspension
▲ 12.7% better
155.7 faults / 100 tests
Year avg: 178.3 / 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 component: excessively damaged or corroded
  • A suspension pin, bush, joint or bearing: excessively worn
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 28.2% better
8.4 faults / 100 tests
Year avg: 11.7 / 100 tests
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A door hinge, catch or pillar: excessively deteriorated
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • Exhaust system has a major leak or is insecure
  • Exhaust system has a major leak or is insecure
Equipment
▲ 62.5% better
1.5 faults / 100 tests
Year avg: 4.0 / 100 tests
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • Seat belt buckle missing, damaged or not functioning as intended
  • ESC MIL indicates a system malfunction
  • A statutory seat belt missing
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 42.4% better
7.6 faults / 100 tests
Year avg: 13.2 / 100 tests
  • 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
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Engine MIL inoperative or indicating a malfunction
  • Any part of the noise suppression system: insecure

Fault rate by mileage segment

Model    Year average
0 342 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: 375
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 204
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 184
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 167
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 158
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 140
Significant brake effort recorded with no brake applied indicating a binding brake
ADVISORY
Occurrences: 58
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 58
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 50
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 43

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 58
A steering ball joint: with excessive wear or free play
FAIL
Occurrences: 43
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 42
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 42
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 37
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 28
Tyre pressure monitoring system malfunctioning or obviously not working
FAIL
Occurrences: 24
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 19
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 19
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 17