Toyota Dba-onc20 vs Toyota Yaris: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Toyota Dba-onc20
78%
MOT pass rate · 1 vehicles
Toyota Yaris
78%
MOT pass rate · 631,425 vehicles
Verdict: On MOT pass rate the Toyota Dba-onc20 (78%) 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 Dba-onc20 | Toyota Yaris |
|---|---|---|
| MOT pass rate | 78% | 78% |
| MOT failure rate | 22% | 22% |
| Faults & advisories per test | 2.6 | 1.7 ✓ |
| Dangerous-fault share | 0% ✓ | 2% |
| Average mileage | 130,746 mi | 85,387 mi |
| Sample size (vehicles) | 1 | 631,425 |
Most common faults
Toyota Dba-onc20
- Nearside Front Lower Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))
- Offside Front Lower Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))
- Front Lower Suspension arm ball joint dust cover severely deteriorated Nearside & Offside (5.3.4 (b) (i))
- Nearside Rear Shock absorbers light misting of oil or has limited damping effect (5.3.2 (b))
- Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt Nearside & Offside (2.1.3 (g) (i))
- Offside Front Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))
Toyota Yaris
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
Reliability FAQ
On MOT pass rate the Toyota Dba-onc20 (78%) and Toyota Yaris (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Toyota Dba-onc20 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.