1,445 tests in 2025
Chevrolet Lacetti reliability and MOT pass rate
58.1% passed first time. The 41.9% fail rate is 19.3 points worse than the all-car average, on a median example 17 years old with 72,485 miles.
Pass rate
58.1%
22.6% of all cars failed; 41.9% of these did.
Fixed on the day
9.6%
Passed after a defect was put right during the visit.
Median at test
72,485 mi
17 years old.
Fail rate by age
| Age at test | Tests | Fail rate |
|---|---|---|
| 3-5 years | 0 | — |
| 6-9 years | 0 | — |
| 10-13 years | 0 | — |
| 14+ years | 1,445 | 41.9% |
What the Lacetti 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.
- Suspension20 dangerous49.2%
- Lamps, reflectors and electrical equipment8 dangerous46.2%
- Brakes87 dangerous43.1%
- Body, chassis, structure15 dangerous25.7%
- Noise, emissions and leaks1 dangerous18.3%
- Tyres119 dangerous17.8%
- Seat belts and supplementary restraint systems16.2%
- Visibility1 dangerous14.5%
Is the Lacetti getting worse?
The fail rate fell 1.2 points to 41.9% from 2022 to 2025 while the median one tested aged 3 years. Ageing alone would predict about 3.3 points, so it is holding up better than the fleet average for its age.
| Year | Tests | Median age | Fail rate | All cars | |
|---|---|---|---|---|---|
| 2022 | 3,398 | 14 | 43.1% | 22.5% | |
| 2023 | 2,721 | 15 | 44% | 22.8% | |
| 2024 | 1,794 | 16 | 43.6% | 23.2% | |
| 2025 | 1,444 | 17 | 41.9% | 22.6% |
Fail rate is first attempts at class 4 tests. Median age is the age of a typical Lacetti 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 Lacetti in 2025, counted by how many tests each one appeared on.
- 1Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength134 tests
- 2Position lamp: not working108 tests
- 3Service brake performance: excessively binding74 tests
- 4Ball joint: ball joint excessively worn74 tests
- 5Stop lamp: not working63 tests
- 6Rigid brake pipes: excessively corroded61 tests
- 7Wipers: does not clear the windscreen effectively61 tests
- 8Headlamp aim: projected beam image is obviously incorrect57 tests
What wears out first
Advisories are the tester flagging wear that is still legal. A typical Lacetti collects 3.61 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.
- 1Engine oil leaks: leaking excessively from engine474 tests
- 2Rigid brake pipes: excessively corroded314 tests
- 3Tread depth: tread depth below requirements of 1.6mm277 tests
- 4Brake discs: in such a condition that it is seriously weakened192 tests
- 5Condition: has a tear, caused by separation or partial failure of its structure139 tests
- 6Pins and bushes: pin or bush excessively worn132 tests
- 7Registration plates: inscription illegible130 tests
- 8Exhaust system: has a major leak of exhaust gases112 tests
Questions
What is the Chevrolet Lacetti MOT pass rate?
58.1% of the 1,445 Chevrolet Lacetti first-attempt MOTs in 2025 passed. The fail rate of 41.9% compares with 22.6% across all cars. A further 9.6% passed after a defect was fixed during the test visit.
What does a Chevrolet Lacetti usually fail on?
The single most common failure is "Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength", recorded on 134 failed tests, followed by "Position lamp: not working" and "Service brake performance: excessively binding". By section, suspension appears in 49.2% of failures, lamps, reflectors and electrical equipment appears in 46.2% of failures, brakes appears in 43.1% of failures.
Does age change the odds?
Sharply. At 3 to 5 years old the fail rate was n/a%; at 14+ years it was 41.9%. The median Chevrolet Lacetti tested in 2025 was 17 years old with 72,485 miles.
Is the Chevrolet Lacetti getting less reliable?
The fail rate fell 1.2 points to 41.9% from 2022 to 2025 while the median one tested aged 3 years. Ageing alone would predict about 3.3 points, so it is holding up better than the fleet average for its age.
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 Lacetti trim together. Year-on-year figures come from the same DVSA extracts for 2026 and earlier years. Full method on the pass rates hub.
Other Chevrolet models
Checking a particular Lacetti?
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.