26,686 tests in 2025
Mitsubishi Asx reliability and MOT pass rate
78.2% passed first time. The 21.8% fail rate is 0.8 points better than the all-car average, on a median example 10 years old with 73,314 miles.
Pass rate
78.2%
22.6% of all cars failed; 21.8% of these did.
Fixed on the day
3.8%
Passed after a defect was put right during the visit.
Median at test
73,314 mi
10 years old.
Fail rate by age
| Age at test | Tests | Fail rate |
|---|---|---|
| 3-5 years | 1,809 | 7.7% |
| 6-9 years | 10,130 | 15.7% |
| 10-13 years | 11,623 | 26.3% |
| 14+ years | 3,124 | 32.9% |
What the Asx fails on
Share of failed tests with at least one fail item in each DVSA inspection section. A test can fail in several sections at once.
- Brakes1,317 dangerous42.8%
- Suspension90 dangerous36.9%
- Tyres1,064 dangerous18.6%
- Lamps, reflectors and electrical equipment1 dangerous16.6%
- Steering34 dangerous15.8%
- Visibility4 dangerous11.7%
- Noise, emissions and leaks5 dangerous10.9%
- Body, chassis, structure44 dangerous9.3%
Is the Asx getting worse?
The fail rate rose 6.9 points to 23% from 2022 to 2025 while the median one tested aged 3 years, which is about what ageing alone predicts (7.7 points). Read it as the fleet getting older rather than the model changing.
| Year | Tests | Median age | Fail rate | All cars | |
|---|---|---|---|---|---|
| 2022 | 28,068 | 7 | 16.1% | 22.5% | |
| 2023 | 27,778 | 8 | 18% | 22.8% | |
| 2024 | 23,571 | 9 | 21% | 23.2% | |
| 2025 | 24,578 | 10 | 23% | 22.6% |
Fail rate is first attempts at class 4 tests. Median age is the age of a typical Asx at its test that year, and it is the number to watch: across the whole fleet each extra year of age adds roughly 1.9 points to the fail rate, so a model whose age and fail rate rise together is simply getting older.
The exact defects that fail it
Every failure item DVSA recorded against a Asx in 2025, counted by how many tests each one appeared on.
- 1Brake pads: less than 1.5 mm thick817 tests
- 2Tread depth: tread depth below requirements of 1.6mm562 tests
- 3Rigid brake pipes: excessively corroded544 tests
- 4Rbt (sp): efficiency below requirements526 tests
- 5Track rod end: ball joint has excessive play490 tests
- 6Ball joint: ball joint excessively worn474 tests
- 7Position lamp: not working432 tests
- 8Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt395 tests
What wears out first
Advisories are the tester flagging wear that is still legal. A typical Asx collects 2.91 of them per test, and these are the ones that come up most. Treat it as the running-repairs list for the next year or two.
- 1Tread depth: tread depth below requirements of 1.6mm4,367 tests
- 2Brake pads: less than 1.5 mm thick3,674 tests
- 3Rigid brake pipes: excessively corroded3,173 tests
- 4Brake discs: in such a condition that it is seriously weakened2,895 tests
- 5Condition: has a tear, caused by separation or partial failure of its structure2,040 tests
- 6Sub-frame: corroded and seriously weakened1,578 tests
- 7Pins and bushes: pin or bush excessively worn1,355 tests
- 8Engine oil leaks: leaking excessively from engine956 tests
Questions
What is the Mitsubishi Asx MOT pass rate?
78.2% of the 26,686 Mitsubishi Asx first-attempt MOTs in 2025 passed. The fail rate of 21.8% compares with 22.6% across all cars. A further 3.8% passed after a defect was fixed during the test visit.
What does a Mitsubishi Asx usually fail on?
The single most common failure is "Brake pads: less than 1.5 mm thick", recorded on 817 failed tests, followed by "Tread depth: tread depth below requirements of 1.6mm" and "Rigid brake pipes: excessively corroded". By section, brakes appears in 42.8% of failures, suspension appears in 36.9% of failures, tyres appears in 18.6% of failures.
Does age change the odds?
Sharply. At 3 to 5 years old the fail rate was 7.7%; at 14+ years it was 32.9%. The median Mitsubishi Asx tested in 2025 was 10 years old with 73,314 miles.
Is the Mitsubishi Asx getting less reliable?
The fail rate rose 6.9 points to 23% from 2022 to 2025 while the median one tested aged 3 years, which is about what ageing alone predicts (7.7 points). Read it as the fleet getting older rather than the model changing.
First-attempt class 4 tests, 2025, from DVSA’s anonymised MOT data (OGL v3, retrieved 2026-09-12). DVSA records newer cars trim by trim; this page adds every Asx trim together. Year-on-year figures come from the same DVSA extracts for 2026 and earlier years. Full method on the pass rates hub.
DVSA has published 12 safety recalls naming the Mitsubishi Asx: Mitsubishi Asx recalls.
Other Mitsubishi models
Checking a particular Asx?
The odds above are the model. The car in front of you has its own record: every test, every advisory, the mileage at each one.
Due a test? Find an approved MOT station near you.