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Kia Rio vs Kia Sportage s: reliability comparison

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

Kia Rio
76%
MOT pass rate · 141,350 vehicles
More reliable
Kia Sportage s
63%
MOT pass rate · 83 vehicles
Verdict: On MOT pass rate, the Kia Rio is the more reliable of the two — 76% pass first time versus 63%. It's one signal among several; check the full breakdown below.

Head to head

Measure Kia Rio Kia Sportage s
MOT pass rate 76% ✓ 63%
MOT failure rate 24% ✓ 37%
Faults & advisories per test 1.8 ✓ 2.5
Dangerous-fault share 3% 0% ✓
Average mileage 76,214 mi 78,481 mi
Sample size (vehicles) 141,350 83

Most common faults

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))

Kia Sportage s

  1. Nearside Front wheel bearing has slight play (2.5.A.3c)
  2. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Offside Front Brake pipe slightly corroded (3.6.B.2c)
  4. Offside Front wheel bearing has slight play (2.5.A.3c)
  5. Offside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)
  6. Nearside Front Brake pipe slightly corroded (3.6.B.2c)

Reliability FAQ

On MOT pass rate, the Kia Rio is the more reliable of the two — 76% pass first time versus 63%. It's one signal among several; check the full breakdown below.

Full Kia Rio report Full Kia Sportage s 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.