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Kia Mentor sx vs Kia Sportage: reliability comparison

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

Kia Mentor sx
65%
MOT pass rate · 104 vehicles
Kia Sportage
80%
MOT pass rate · 294,137 vehicles
More reliable
Verdict: On MOT pass rate, the Kia Sportage is the more reliable of the two — 80% pass first time versus 65%. It's one signal among several; check the full breakdown below.

Head to head

Measure Kia Mentor sx Kia Sportage
MOT pass rate 65% 80% ✓
MOT failure rate 35% 20% ✓
Faults & advisories per test 2.4 1.7 ✓
Dangerous-fault share 0% ✓ 4%
Average mileage 95,815 mi 76,824 mi
Sample size (vehicles) 104 294,137

Most common faults

Kia Mentor sx

  1. Parking brake: efficiency below requirements (3.7.B.7)
  2. Nearside Front Brake pipe slightly corroded (3.6.B.2c)
  3. Offside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)
  4. Offside Front Brake pipe slightly corroded (3.6.B.2c)
  5. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  6. Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a)

Kia Sportage

  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. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  4. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
  5. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  6. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Reliability FAQ

On MOT pass rate, the Kia Sportage is the more reliable of the two — 80% pass first time versus 65%. It's one signal among several; check the full breakdown below.

Full Kia Mentor sx report Full Kia Sportage 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.