Kia Ceed vs Kia Optima 3 crdi isg: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Kia Ceed
76%
MOT pass rate · 147,722 vehicles
Kia Optima 3 crdi isg
93%
MOT pass rate · 279 vehicles
More reliable
Verdict: On MOT pass rate, the Kia Optima 3 crdi isg is the more reliable of the two — 93% pass first time versus 76%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Kia Ceed | Kia Optima 3 crdi isg |
|---|---|---|
| MOT pass rate | 76% | 93% ✓ |
| MOT failure rate | 24% | 7% ✓ |
| Faults & advisories per test | 2.0 | 0.0 ✓ |
| Dangerous-fault share | 4% | — ✓ |
| Average mileage | 90,545 mi | 87,486 mi |
| Sample size (vehicles) | 147,722 | 279 |
Most common faults
Kia Ceed
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
Kia Optima 3 crdi isg
No fault breakdown available.
Reliability FAQ
On MOT pass rate, the Kia Optima 3 crdi isg is the more reliable of the two — 93% pass first time versus 76%. It's one signal among several; check the full breakdown below.
Full Kia Ceed report Full Kia Optima 3 crdi isg report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.