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Toyota Aventis vs Toyota Yaris: reliability comparison

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

Toyota Aventis
68%
MOT pass rate · 3 vehicles
Toyota Yaris
78%
MOT pass rate · 631,425 vehicles
Verdict: On MOT pass rate the Toyota Aventis (68%) and Toyota Yaris (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Toyota Aventis Toyota Yaris
MOT pass rate 68% 78% ✓
MOT failure rate 32% 22% ✓
Faults & advisories per test 0.5 ✓ 1.7
Dangerous-fault share 0% ✓ 2%
Average mileage 163,590 mi 85,387 mi
Sample size (vehicles) 3 631,425

Most common faults

Toyota Aventis

  1. Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.5b)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Undretrays and engine covers fitted
  4. Nearside Front position lamp(s) not working (1.1.A.3b)
  5. Nearside Windscreen wiper does not clear the windscreen effectively (8.2.2)
  6. Offside Windscreen wiper does not clear the windscreen effectively (8.2.2)

Toyota Yaris

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  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 Toyota Aventis (68%) and Toyota Yaris (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Toyota Aventis report Full Toyota Yaris 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.