Used buying checklist
KIA Optima reliability, common problems and used buying checks
A used KIA Optima looks better than average for reliability in UK MOT data: 14.8% of 13,380 tests failed, compared with 18.7% across all indexed models. A good example should have a clean MOT history for suspension and steering, corrosion and structure, and windscreen, wipers, and mirrors.
It can be, if the exact car has a clean history for suspension and steering, corrosion and structure, and windscreen, wipers, and mirrors.
Start with suspension and steering, corrosion and structure, and windscreen, wipers, and mirrors, then compare the car's mileage and recall record below.
Sources used: DVSA MOT tests (Apr 2026); vehicle recalls (Apr 2026); MOT fault wording (May 2025). MOT data does not capture every reliability issue, especially intermittent engine, gearbox or infotainment faults that do not appear during the test.
- 14.8% MOT failure rate
- Median tested mileage 61,550 miles
- 1,983 failed MOT tests analysed
Suspension and steering is the clearest area to check
Suspension and steering is the clearest named problem area in this model's MOT history (7.4 MOT notes per 100 tests). Example MOT phrases from this area include ball joint has excessive play, ball joint excessively worn, and play in steering rack inner joint(s).
Example MOT phrases to search in the car's history:
- ball joint has excessive play
- ball joint excessively worn
- Play in steering rack inner joint(s)
- ball joint dust cover no longer prevents the ingress of dirt
- excessively corroded
- corroded and seriously weakened
- ferrule excessively corroded
- corroded to the extent that the rigidity of the assembly is significantly reduced
- damaged but not adversely affecting driver's view
- does not clear the windscreen effectively
Focus on suspension and steering, corrosion and structure, and windscreen, wipers, and mirrors
The model's recorded failure rate is 14.8%, -3.9 percentage points compared with the average across all models. Use the seller questions below to check whether repeat MOT notes have actually been repaired.
- MOT tests analysed13,380 tests
- Median tested mileage61,550 miles
- Failed MOT tests1,983
Should you buy a used KIA Optima?
85.2% of the MOT tests we analysed for this model passed. The model's recorded failure rate is 14.8%, -3.9 percentage points compared with the average across all models. This is a buying brief for the exact car in front of you: clean repeat history matters more than badge reputation.
- Repeat unresolved MOT notes for suspension and steering, corrosion and structure, and windscreen, wipers, and mirrors
- suspension and steering appearing across more than one MOT
- Any dangerous MOT failure on the exact car, especially if the same area appears again later
- No paperwork showing applicable recall work has been completed
- A seller who cannot explain MOT wording such as "ball joint has excessive play"
It can be, if the exact car has a clean history for suspension and steering, corrosion and structure, and windscreen, wipers, and mirrors.
Start with suspension and steering, corrosion and structure, and windscreen, wipers, and mirrors, then compare the car's mileage and recall record below.
Suspension and steering is the clearest named problem area in the MOT history (7.4 MOT notes per 100 tests). These counts are issue notes, not failure rates, because a single MOT can list several faults.
Past 100k miles on the KIA Optima, MOT records most often point to suspension and steering, corrosion and structure, and lights and electrical.
The MOT failure rate rises from 8.6% at 0-3 years to 33.3% at 15+ years. Compare the car with the nearest age range before treating a fault as normal wear or a warning sign. The average MOT failure rate across all models in the same dataset is 18.7%.
Start with suspension and steering, corrosion and structure, windscreen, wipers, and mirrors, and lights and electrical. The checklist on this page explains why each area is being recommended, what to inspect, and what to ask the seller.
3 relevant recall notices appear for this model. Treat them as safety checks to verify for the exact car, not as normal MOT wear.
What should I check first?
Start with suspension and steering, corrosion and structure, windscreen, wipers, and mirrors, and lights and electrical. The checklist on this page explains why each area is being recommended, what to inspect, and what to ask the seller. Each item shows whether it comes from MOT results, recall notices, or a standard used-car check.
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Suspension and steering Seen in MOT results
Suspension and steering is one of the most common MOT problem areas for this model (7.4 MOT notes per 100 tests).
What to check: Listen for knocks, check uneven tyre wear, and inspect steering play.
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Corrosion and structure Seen in MOT results
Corrosion and structure is one of the most common MOT problem areas for this model (6.6 MOT notes per 100 tests).
What to check: Inspect sills, subframes, mounting points, arches, and underside corrosion advisories.
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Windscreen, wipers, and mirrors Seen in MOT results
Windscreen, wipers, and mirrors is one of the most common MOT problem areas for this model (6.5 MOT notes per 100 tests).
What to check: Check windscreen damage, wiper operation, washers, mirrors, and demisting.
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Lights and electrical Seen in MOT results
Lights and electrical is one of the most common MOT problem areas for this model (4.0 MOT notes per 100 tests).
What to check: Check every lamp, warning light, horn, battery condition, and dashboard messages.
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Tyres and wheels Seen in MOT results
Tyres and wheels is one of the most common MOT problem areas for this model (2.2 MOT notes per 100 tests).
What to check: Check tyre age, tread depth, sidewall damage, wheel condition, and alignment wear.
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Emissions, engine, and exhaust Seen in MOT results
Emissions, engine, and exhaust is one of the most common MOT problem areas for this model (1.4 MOT notes per 100 tests).
What to check: Check warning lights, smoke, exhaust leaks, recent emissions failures, and service history.
What changes with mileage?
Past 100k miles on the KIA Optima, MOT records most often point to suspension and steering, corrosion and structure, and lights and electrical.
Common MOT problem areas
Common faults: what usually fails on this model?
Suspension and steering is the clearest named problem area in the MOT history (7.4 MOT notes per 100 tests). These counts are issue notes, not failure rates, because a single MOT can list several faults.
Recall-related areas to verify
Official recall areas
Manufacturer recall notices for the KIA Optima mainly involve 2 areas: brakes and emissions, engine, and exhaust. Treat each as something to verify on the specific car you are viewing; the recall table below shows the official notice text.
Mileage and age checks
Mileage changes: what starts showing up after high mileage?
Past 100k miles on the KIA Optima, MOT records most often point to suspension and steering, corrosion and structure, and lights and electrical. On lower-mileage cars, the most common named areas are windscreen, wipers, and mirrors, tyres and wheels, and corrosion and structure.
| Mileage range | Tests | Vehicles | Failure rate (vs all models) | Median mileage |
|---|---|---|---|---|
| 0-50k | 4,351 | 3,752 | 11.3%+0.5 percentage points vs all models | 38,506 miles |
| 50-100k | 6,998 | 5,565 | 15.8%-4.9 percentage points vs all models | 68,585 miles |
| 100-150k | 1,660 | 1,248 | 19.0%-7.2 percentage points vs all models | 115,210 miles |
| 150-200k | 273 | 193 | 20.5%-6.8 percentage points vs all models | 166,097 miles |
| 200k+ | 45 | 29 | 28.9%+2.3 percentage points vs all models | 218,133 miles |
Problem areas by mileage
Past 100k miles on the KIA Optima, MOT records most often point to suspension and steering, corrosion and structure, and lights and electrical.
| Mileage range | Car areas most often recorded | Specific MOT defect examples |
|---|---|---|
| 0-50k |
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| 50-100k |
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| 100-150k |
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| 150-200k |
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| 200k+ |
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Fair comparisons: is this problem normal for its age?
The MOT failure rate rises from 8.6% at 0-3 years to 33.3% at 15+ years. Compare the car with the nearest age range before treating a fault as normal wear or a warning sign. The average MOT failure rate across all models in the same dataset is 18.7%. The highest failure rate by age is 33.3% for 15+ years cars, based on 3 tests.
| Age range | Tests | Vehicles | Failure rate (vs all models) | Median age |
|---|---|---|---|---|
| 0-3 years 2023–2026 reg. |
105 | 96 | 8.6%+0.1 percentage points vs all models | 3.0 years |
| 3-6 years 2020–2023 reg. |
7,140 | 5,917 | 12.4%+1.8 percentage points vs all models | 5.0 years |
| 6-10 years 2016–2020 reg. |
4,950 | 3,957 | 15.8%-0.8 percentage points vs all models | 7.0 years |
| 10-15 years 2011–2016 reg. |
1,182 | 848 | 25.6%+2.0 percentage points vs all models | 11.0 years |
| 15+ years pre-2011 reg. |
3 | 2 | 33.3%+7.4 percentage points vs all models | 17.3 years |
Recall records and data freshness
Recall context: are there safety notices to know about?
3 relevant recall notices appear for this model. Treat them as safety checks to verify for the exact car, not as normal MOT wear.
| 2023-11-13 | Certain engines may have been produced with conditions that can cause premature wear of the connecting rod bearings Certain engines may have been produced with conditions that can cause premature wear of the connecting rod bearings Complete an electronic vibration test if the engine fails the test it will be replaced |
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| 2023-09-29 | The mesh filter inside the tandem pump may block causing insufficient oil supply and a risk of vacuum pump failure. If the pump fails there will be no vacuum assistance and the possibility of increased braking distance when applying the brake pedal. The mesh filter inside the tandem pump may block causing insufficient oil supply and a risk of vacuum pump failure. If the pump fails there will be no vacuum assistance and the possibility of increased braking distance when applying the brake pedal.� Remove the mesh filter and check the vacuum pump for damage if damaged replace the pump/drive belt. |
| 2013-06-01 | BRAKE LIGHTS MAY MALFUNCTION The vehicles brake lights may intermittently malfunction due to carbonisation of the contacts within the brake light switch. This can also affect other systems on the vehicle including: ESC cruise control gear selection (autoboxes) engine check lamp. Recall vehicles likely to be affected to replace the brake light switch. |
Related searches
Common ways people look up the KIA Optima. Each link runs the search and lands on the relevant section of this report.
Related reliability guides
See where this model sits against other KIA reports by MOT failure rate and common problem area.
Compare high-confidence model reports across all makes.
Use the fleet mileage baseline before checking this model's own mileage table.
Compare this model's age pattern with the wider MOT baseline.
Sources used: DVSA MOT tests (Apr 2026); vehicle recalls (Apr 2026); MOT fault wording (May 2025). These are patterns from many MOT tests and recall notices. They help you decide what to inspect and what to ask; they do not certify the condition of one specific car.