MOT data
Daihatsu Sirion MOT fail rate by age and year
DVSA MOT tests 2022–2025 · 24,404 MOT tests · Updated
At 16 years, 47.5% of Daihatsu Sirion MOT tests ended in a fail (adjusted to typical mileage), against 42.9% for all class 4 vehicles tested at 16 (5,134 MOT tests) [1].
Buying Report £14.99 incl. VAT · one car · no subscription · Not a mechanical inspection.
- Lights and electrics: fails less often than cars the same age (0.7× (0.66–0.75×)) at 16 years, 733 of 5,134 MOT tests
- Mileage: median 68,416 miles at 16 years against 102,757 for all class 4 vehicles, 5,134 MOT tests
- Before the mileage adjustment: 37.8% of MOT tests at 16 years ended in a fail, 5,134 MOT tests
Which engine and year a car has decides which of these apply. Check the reg first.
Figures are for the model, not one car, and compare with all class 4 vehicles tested at 16 in the same test year.
- Fail rate at 16 years, typical mileage
- 47.5%
- vs 42.9% for all class 4 vehicles tested at 16
- 5,134 MOT tests
- Fail rate at 16 years, raw
- 37.8%
- vs 42.9% for all class 4 vehicles tested at 16
- 5,134 MOT tests
- Rank at 16 years
- 109 of 159
- 1 = fewest fails at typical mileage, among models with 5,000+ MOT tests at 16
- 5,134 MOT tests
- Median mileage at 16 years
- 68,416 mi
- vs 102,757 mi for all class 4 vehicles
- 5,134 MOT tests
Daihatsu Sirion MOT fail rate by age
Each line follows the cars first used in one year across the ages they were tested at from 2022 to 2025, so a line never mixes a 2005 car with a 2015 one. 24k DVSA MOT tests in all (24,404).
At 16 years and typical mileage that is 11% more fails than all class 4 vehicles tested at 16 (5,134 MOT tests).
| Age | Raw | Typical mileage | All class 4 |
|---|---|---|---|
| 13 | 30.1% | 33.9% | 39.8% |
| 14 | 31.8% | 42.6% | 41.6% |
| 15 | 35.1% | 45.0% | 42.3% |
| 16 | 37.8% | 47.5% | 42.9% |
| 17 | 39.0% | 44.4% | 43.3% |
| 18 | 39.6% | 45.8% | 43.3% |
| 19* | 41.0% | 46.7% | 43.3% |
| 20* | 45.4% | 46.0% | 42.7% |
* Over 18 years: only survivors are still tested at this age, so these rates describe the cars that are left.
Higher MOT fail rate than average: 37.8% raw · 47.5% at typical mileage, against 42.9% for all class 4 vehicles tested at 16, 5,134 MOT tests. Which years? See the full verdict
What fails on a Daihatsu Sirion at 16 years
3 of 11 parts fail clearly more or less often than on cars the same age, with the same direction at 3 or more ages up to 18 years and no mixed picture.
| Part | Per 100 | All class 4 | Compared | Most common fail |
|---|---|---|---|---|
| Lights and electrics | 14.3 | 20.4 | fails less often than cars the same age (0.7× (0.66–0.75×)) | Stop lamp not working (MOT fail) |
| Tyres | 5.3 | 7.5 | fails less often than cars the same age (0.6–0.8×) | Tyre tread depth below requirements of 1.6mm (MOT fail) |
| Emissions and leaks | 4.2 | 6.2 | fails less often than cars the same age (0.6–0.8×) | Petrol exhaust Lambda reading after 2nd fast idle outside specified limits (MOT fail) |
| Suspension | 17.1 | 17.1 | about average for cars the same age | Suspension arm ball joint excessively worn (MOT fail) |
| Brakes | 9.7 | 11.6 | about average for cars the same age | Brake pipe excessively corroded (MOT fail) |
| Visibility | 6.6 | 6.8 | about average for cars the same age | Windscreen wiper does not clear the windscreen effectively (MOT fail) |
Buying a Daihatsu Sirion? Check that exact car before the viewing.
Buying Report £14.99 incl. VAT · one car · no subscription · Not a mechanical inspection.
- Model risks for this year and fuel
- What similar cars did at their next MOT
- Repairs ahead
- Viewing checklist
Check one Daihatsu Sirion, not the average
The figures here describe Daihatsu Sirion cars as a group. A registration shows one car's own DVSA record: its MOT tests, the mileage at each test and the recall flag.
- Check a Daihatsu Sirion's MOT history Every MOT test, fail item, advisory and mileage reading DVSA holds for that registration.
- Mileage check on a Daihatsu Sirion The odometer reading from each MOT, with drops, jumps and long gaps flagged.
- Check a Daihatsu Sirion for an outstanding recall Whether DVSA's MOT record flags an outstanding safety recall for that registration.
More Daihatsu Sirion data
Daihatsu Sirion recalls
1 DVSA recall lists this model by name [2]. Vehicles are DVSA's count of affected Daihatsu Sirion vehicles. The latest:
- R/2001/078 Also covers the Daihatsu Sirion: Headlights may fail unexpectedly (2,264 vehicles of this model), built Jan 1998 to Dec 1999. From the recall's stated risk: “There is a possibility that the headlight and horn wiring circuit may fail resulting in the unexpected failure of the headlights and horn.”
Ask the seller for proof the work was done. Check any car on GOV.UK · Daihatsu Sirion recalls
Daihatsu Sirion against similar cars at 16 years
Same class and fuel, all tested at 16 years, at typical mileage.
| Model | Fail rate | 95% range | MOT tests |
|---|---|---|---|
| Daihatsu Sirion | 47.5% | 45.2% to 49.8% | 5,134 |
| Ford Fiesta MOT fail rate | 47.1% | 46.9% to 47.3% | 257,412 |
| Vauxhall Corsa MOT fail rate | 48.8% | 48.5% to 49.1% | 152,796 |
| MINI Cooper and One MOT fail rate | 42.8% | 42.4% to 43.2% | 113,092 |
| Volkswagen Polo MOT fail rate | 50.0% | 49.6% to 50.3% | 98,520 |
| Toyota Yaris MOT fail rate | 43.5% | 43.1% to 43.8% | 89,483 |
| Honda Jazz MOT fail rate | 44.6% | 44.2% to 45.0% | 88,276 |
| Renault Clio MOT fail rate | 54.8% | 54.3% to 55.2% | 77,542 |
| Peugeot 207 MOT fail rate | 52.4% | 52.0% to 52.8% | 74,808 |
Other Daihatsu models
More Daihatsu Sirion data
Years
Running costs
By part
- Daihatsu Sirion suspension problems
- Daihatsu Sirion brakes problems
- Daihatsu Sirion lights and electrics problems
- Daihatsu Sirion steering problems
- Daihatsu Sirion body and structure problems
- Daihatsu Sirion exhaust and emissions problems
- Daihatsu Sirion windscreen and wipers problems
- Daihatsu Sirion tyres problems
Problems, recalls and costs
Questions people ask
How often does a Daihatsu Sirion fail its MOT at 16 years?
47.5% of MOT tests at 16 years ended in a fail at typical mileage (37.8% as tested), from 5,134 MOT tests, against 42.9% for all class 4 vehicles the same age; the Ford Fiesta was at 47.1%.
What fails most on a Daihatsu Sirion at 16 years?
14.3 in 100 MOT tests at 16 years failed on lights and electrics, most often "stop lamp not working", then tyres (5.3) and emissions and leaks (4.2), from 5,134 MOT tests.
What mileage does a Daihatsu Sirion have at 16 years?
A median of 68,416 miles at the MOT test at 16 years, against 102,757 for all class 4 vehicles the same age, from 5,134 MOT tests.
Sources
- Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 24,404 MOT tests. Accessed 7 Oct 2026.
- Driver and Vehicle Standards Agency, Vehicle safety recalls data. DVSA recall data. Accessed 7 Oct 2026.
Cars tested at 16 years are compared only with vehicles tested at 16 years in the same year, adjusted to typical mileage. Breakdowns and non-MOT faults are not in this data.