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Lexus Is 250 f sport auto vs Lexus Nx: reliability comparison

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

Lexus Is 250 f sport auto
88%
MOT pass rate · 182 vehicles
Lexus Nx
92%
MOT pass rate · 29,652 vehicles
More reliable
Verdict: On MOT pass rate, the Lexus Nx is the more reliable of the two — 92% pass first time versus 88%. It's one signal among several; check the full breakdown below.

Head to head

Measure Lexus Is 250 f sport auto Lexus Nx
MOT pass rate 88% 92% ✓
MOT failure rate 12% 8% ✓
Faults & advisories per test 0.9 0.9
Dangerous-fault share 6% 3% ✓
Average mileage 89,030 mi 54,657 mi
Sample size (vehicles) 182 29,652

Most common faults

Lexus Is 250 f sport auto

  1. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
  6. Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

Lexus Nx

  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 Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  4. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  5. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate, the Lexus Nx is the more reliable of the two — 92% pass first time versus 88%. It's one signal among several; check the full breakdown below.

Full Lexus Is 250 f sport auto report Full Lexus Nx 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.