60.4%
Daihatsu Sirion pass rate
Used Daihatsu Sirion buying guide
In 2025, Daihatsu Sirion cars passed 60.4% of 5,416 initial MOT tests, 11.9 points below the 72.3% UK average. Here is where it fails and what to check before you buy.
Looking at a specific Sirion? Check its finance, write-off, stolen, mileage and keeper history. £15, no account needed.
Daihatsu Sirion MOT record in brief
Initial MOT tests in 2025, retests excluded.
72.3%
UK average, all cars
−11.9
percentage points below average
Ranked on pass rate the Sirion sits 491st of 575 models in the data. Daihatsu as a brand averaged 61.5%, so this model runs 1.1 points behind its own brand.
A pass rate is not a reliability score. The full Daihatsu Sirion MOT record has the pass rate by age, every common failure and how the Sirion compares with similar cars.
Sirion fuel types
Petrol was the most common fuel among Daihatsu Sirion cars tested in 2025. None of the tested examples were diesel.
Where the Sirion fails its MOT
Where Daihatsu Sirion cars that failed their 2025 MOT were marked down, as a share of all recorded failure items.
The specific items testers recorded most often were ball joint excessively worn (10.3%), wipers does not clear the windscreen effectively (5.3%) and headlamp aim projected beam image is obviously incorrect (4.9%). See every common Sirion MOT failure.
These are DVSA failure records across every Daihatsu Sirion that failed, not a claim that every Sirion has these problems.
What should you check when buying a used Sirion?
The areas above, most common first, and what an MOT tester looks at in each.
1
Suspension
Listen for knocks over bumps, check the car sits level, and look for leaking shock absorbers and split rubber gaiters. 25.9% of Sirion failure items.
2
Lamps, reflectors and electrical equipment
Walk round with every light on: headlights, brake lights, indicators, fog lights and the number plate lamp. Check no warning lights stay on after starting. 23.2% of Sirion failure items.
3
Brakes
Make sure the pedal feels firm, the car stops in a straight line, the handbrake holds on a slope and no brake warning light is showing. 13.4% of Sirion failure items.
4
Body, chassis, structure
Look underneath and along the sills for corrosion, and check for damaged or poorly repaired panels. 9% of Sirion failure items.
5
Visibility
Check the windscreen for chips or cracks in the driver's view, and that the wipers and washers clear it properly. 8.3% of Sirion failure items.
None of this replaces the car's own record. Run a free MOT history check on the registration to see every test, advisory and recorded mileage for that car.
What the MOT record doesn't tell you
Knowing Daihatsu Sirion failures cluster around suspension and lamps, reflectors and electrical equipment tells you what to inspect. It tells you nothing about whether the car is safe to buy. An MOT does not show money still owed on the car, a write-off, a theft record or a clocked odometer.
Check the exact Sirion you are looking at. One £15 report, instant results, backed by a £30,000 data guarantee.
- Outstanding finance
- Write-off records
- Stolen markers
- Mileage history
- Previous keepers
Other used Daihatsu models
The most-tested Daihatsu models in 2025, with how their MOT pass rate compares with the Sirion.
See all 2 Daihatsu models ranked by MOT pass rate.
Used Daihatsu Sirion FAQs
Is the Daihatsu Sirion reliable?
MOT data does not measure reliability. It records whether a car met the roadworthiness standard on the day of its test. What it does show is a 60.4% first-time pass rate for the Daihatsu Sirion across 5,416 tests in 2025, below the 72.3% average for all cars.
What should I check before buying a used Daihatsu Sirion?
On the car itself, start with the areas it most often fails on: suspension, lamps, reflectors and electrical equipment and brakes. Then check the individual car's history: outstanding finance, insurance write-off records, stolen markers, mileage and previous keepers. None of these appear in the MOT record or on the V5C.
How do I check a Daihatsu Sirion's history?
Enter the registration of the specific car. A Carpeep car history check reports outstanding finance, write-off category, stolen markers, mileage history, previous keepers, MOT and tax status, import and export markers and scrapped status in one £15 report.
MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025 (class 4 initial tests, retests excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.