Toyota Yaris UK Reliability Profile — DVSA MOT pass rates

Background

This profile is based on DVSA MOT results for the Toyota Yaris in the UK, covering 1,676,758 tests across vehicles aged 3 to 24. The dataset spans test years 2020, 2021, 2022, and 2023.

MOT pass rates are not a full mechanical history, but they are a useful indicator of how often a car reaches its annual inspection without a fail. In this Yaris dataset, the broad pattern is straightforward: pass rates are very strong at younger ages, then decline steadily as vehicles get older and accumulate mileage.

How the Yaris performs at different ages

The Toyota Yaris starts from a notably high pass rate at age 3, when 101,588 tests returned a 95.05 pass rate at a median mileage of 15,827. From there, the pass rate eases down year by year.

By age 7, the Yaris records 113,464 tests with an 87.16 pass rate and a median mileage of 40,796. By age 12, there are 83,735 tests with a 75.02 pass rate at 69,058 median miles. At age 24, the oldest point in the dataset, 1,367 tests show a 62.18 pass rate with median mileage at 92,011.

That progression suggests a model that remains relatively robust through its early MOT life, then moves into a more mixed picture in later years rather than showing any abrupt collapse at one specific age.

Age	Tests	Pass rate	Median mileage
3	101,588	95.05	15,827
7	113,464	87.16	40,796
12	83,735	75.02	69,058
18	68,947	65.38	88,694
24	1,367	62.18	92,011

The age-related decline is steady, not erratic

One of the clearer features in the Yaris record is consistency. The pass rate moves from 95.05 at age 3 to 93.09 at age 4, 91.39 at age 5, and 89.59 at age 6. It then continues through 87.16 at age 7, 84.27 at age 8, and 81.45 at age 9.

That same gradual pattern continues into older age bands. The Yaris posts 79.64 at age 10, 78.13 at age 11, 75.02 at age 12, 72.69 at age 13, and 70.56 at age 14. Even in the oldest groups, the movement remains incremental: 66.89 at age 16, 66.1 at age 17, 65.38 at age 18, 64.75 at age 19, 64.65 at age 20, 64.54 at age 21, 63.81 at age 22, 62.67 at age 23, and 62.18 at age 24.

For a reliability narrative, that matters. The data does not point to a single cliff-edge year. Instead, it shows a long, predictable ageing curve.

Mileage rises alongside age

Median mileage also climbs in a largely orderly way through most of the age range. The Yaris moves from 15,827 at age 3 to 21,694 at age 4, 28,081 at age 5, and 34,351 at age 6. At age 10, median mileage is 58,357, and by age 15 it is 84,054.

The later years continue that pattern, with 85,933 at age 16, 87,645 at age 17, 88,694 at age 18, 90,340 at age 19, 91,977 at age 20, 93,169 at age 21, 93,426 at age 22, and 94,129 at age 23. The age-24 figure is 92,011.

Taken together, the mileage and pass-rate data show the expected relationship: older Yaris examples tend to have higher median mileage and lower MOT pass rates. The dataset does not isolate cause, but it does show that the decline in pass performance happens alongside rising use.

Recent test-year results

The by-year figures are comparatively stable and slightly stronger in the later years shown. In 2020, the Yaris recorded 99,333 tests with an 86.6 pass rate. In 2021, that moved to 117,666 tests and 87.4. In 2022, there were 115,989 tests at 88.74, followed by 114,653 tests at 89.42 in 2023.

Test year	Tests	Pass rate
2020	99,333	86.6
2021	117,666	87.4
2022	115,989	88.74
2023	114,653	89.42

These annual figures should be read carefully, because the age mix of cars in each year is not shown here. Even so, the direction across 2020 to 2023 is positive rather than weakening.

What this says about Yaris reliability in the UK

On MOT evidence alone, the Toyota Yaris presents as a car with very strong early-life inspection performance and a long, gradual ageing curve. A 95.05 pass rate at age 3 is a strong starting point, and 87.16 at age 7 still indicates that most examples are passing. By age 12, the figure is 75.02, and from age 18 onward the model sits in the mid-60 range, ending at 62.18 at age 24.

The scale of the sample also adds weight to the pattern. There are more than 100,000 tests at ages 3, 4, 5, 6, 7, and 8, and 1,676,758 tests overall. That makes the broad trend hard to dismiss as noise.

Frequently asked questions

Q: What is the Toyota Yaris MOT pass rate at age 3? A: At age 3, the Toyota Yaris records 101,588 MOT tests with a 95.05 pass rate. Median mileage at that age is 15,827.

Q: How does the Yaris perform at age 7? A: At age 7, the Yaris posts 113,464 tests with an 87.16 pass rate. Median mileage is 40,796.

Q: What is the pass rate for a 12-year-old Yaris? A: At age 12, the dataset shows 83,735 tests and a 75.02 pass rate. Median mileage is 69,058.

Q: Does the Yaris pass rate fall steadily with age? A: Yes. The pass rate moves from 95.05 at age 3 to 87.16 at age 7, 75.02 at age 12, and 62.18 at age 24.

Q: What do the latest test-year figures show? A: The Yaris records 86.6 in 2020, 87.4 in 2021, 88.74 in 2022, and 89.42 in 2023. Test volumes are 99,333, 117,666, 115,989, and 114,653 respectively.

Q: How many MOT tests are included in this profile? A: The profile covers 1,676,758 Toyota Yaris MOT tests. The observed vehicle ages run from 3 to 24.