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Seat Arona vs Seat Leon sx: reliability comparison

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

Seat Arona
87%
MOT pass rate · 42,906 vehicles
Seat Leon sx
79%
MOT pass rate · 39 vehicles
Verdict: On MOT pass rate the Seat Arona (87%) and Seat Leon sx (79%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Seat Arona Seat Leon sx
MOT pass rate 87% ✓ 79%
MOT failure rate 13% ✓ 21%
Faults & advisories per test 1.2 0.5 ✓
Dangerous-fault share 6% 0% ✓
Average mileage 43,681 mi 112,470 mi
Sample size (vehicles) 42,906 39

Most common faults

Seat Arona

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

Seat Leon sx

  1. Exhaust has a minor leak of exhaust gases (7.1.2)
  2. Front Brake pad(s) wearing thin (3.5.1g)
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Ball joint has slight play (2.2.B.1f)
  5. Offside 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)

Reliability FAQ

On MOT pass rate the Seat Arona (87%) and Seat Leon sx (79%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Seat Arona report Full Seat Leon sx 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.