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Kia Ls vs Kia Rio: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Kia Ls
62%
MOT pass rate · 2 vehicles
Kia Rio
76%
MOT pass rate · 141,350 vehicles
Verdict: On MOT pass rate the Kia Ls (62%) and Kia Rio (76%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Kia Ls Kia Rio
MOT pass rate 62% 76% ✓
MOT failure rate 38% 24% ✓
Faults & advisories per test 1.9 1.8 ✓
Dangerous-fault share 0% ✓ 3%
Average mileage 125,660 mi 76,214 mi
Sample size (vehicles) 2 141,350

Most common faults

Kia Ls

  1. Headlamp deteriorated but light output not reduced (1.7.5a)
  2. Offside Front Front position lamp(s) deteriorated, but still visible from a reasonable distance (1.1.A.3d)
  3. Offside Rear Brake pipe slightly corroded (3.6.B.2c)
  4. Oil leak
  5. slight roughness in n/s/r wheel bearing
  6. Brake pipe excessively corroded (3.6.B.2c)

Kia Rio

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Reliability FAQ

On MOT pass rate the Kia Ls (62%) and Kia Rio (76%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Kia Ls report Full Kia Rio 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.