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MOT statistics · 2023 tests

Daihatsu Sirion MOT pass rate, common failures and mileage

In 2023, 70.1% of 6,925 MOT tests on the Daihatsu Sirion ended in a pass, 6.4 points below the 76.5% average for all cars.

Pass rate
70.1%
All cars 76.5%
Tests
6,925
Initial MOTs in 2023
Mileage at 13
59k
Median; middle half 41k to 83k

Pass rate and mileage by age

Each row covers the Daihatsu Sirion MOT tests at that age. Mileage shows the median and the middle half of odometer readings, from the 25th to the 75th percentile.

AgePass rateMileage
13542 tests
74.4%
59,000 · 41k to 83k
141,425 tests
74.2%
65,000 · 45k to 87k
151,847 tests
71.1%
67,000 · 47k to 89k
161,202 tests
68.0%
69,000 · 51k to 91k
17785 tests
65.7%
73,000 · 53k to 95k
18499 tests
66.5%
73,000 · 53k to 95k
Sirion pass rateAll cars at that ageMiddle half of mileages

Most common MOT failures and advisories

How often each item came up, per 100 MOT tests on the Daihatsu Sirion. Advisories are things the tester noted that did not fail the car, often wear that will need attention soon. Follow an item to see what it means and how serious it is.

Failures

Wiper blades
Wiper blade missing or obviously not clearing the windscreen
4.0in 100 tests
Side and tail lights
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
3.6in 100 tests
Brake lights
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
3.3in 100 tests
Steering joints
A suspension pin, bush or joint excessively worn
2.8in 100 tests
Brake pipes
Brake pipe damaged or excessively corroded
2.7in 100 tests
Corrosion near mountings
The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mo
2.6in 100 tests
Headlight aim
The aim of a headlamp is not within limits laid down in the requirements
2.4in 100 tests
Tyre tread
Tyre tread depth not in accordance with the requirements
2.0in 100 tests

Advisories and minor defects

Brake pipes
Brake pipe damaged or excessively corroded
15.2in 100 tests
Tyre tread
Tyre tread depth not in accordance with the requirements
12.2in 100 tests
Tyres
A tyre seriously damaged
12.1in 100 tests
Brake discs
Brake disc or drum excessively weakened, insecure or fractured
8.4in 100 tests
Brake pads
A brake lining or pad worn below 1.5mm
5.3in 100 tests
Headlights
Headlamp reflector or lens slightly defective (minor defect)
5.3in 100 tests
Suspension bushes
A suspension pin, bush or joint excessively worn
4.7in 100 tests
Headlights
Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than whit
4.7in 100 tests

What to check on a used Sirion

The parts that come up most often in Daihatsu Sirion MOTs, and how to look at them on a viewing.

  1. Brake pipes and hoses
    Look underneath at the metal brake pipes for heavy rust, and at the rubber hoses for cracks or bulges.
  2. Tyres
    Check the tread across the full width of every tyre, including the inner edge, and look for cuts and bulges in the sidewalls.
  3. Brake discs and pads
    Ask when the discs and pads were last replaced, and look through the wheel for a raised lip on the edge of the disc.
  4. Lights
    Walk round with every light on, and ask someone to press the brake pedal so you can see both brake lights.
  5. Suspension and steering joints
    Listen for knocks over bumps and at full lock, and ask whether any suspension or steering joints have been replaced.

Check a specific Sirion

Fleet averages only go so far. Enter the registration to see that car's own MOT history, mileage record and current condition, free.

UK

Questions

What is the MOT pass rate of the Daihatsu Sirion?
In 2023, 70.1% of 6,925 initial MOT tests on the Daihatsu Sirion ended in a pass, against 76.5% for all cars and light vans.
What fails most often on a Daihatsu Sirion MOT?
The most common failures were wiper blades (4.0 in 100 tests), side and tail lights (3.6 in 100 tests), brake lights (3.3 in 100 tests).
What is a normal mileage for a 13-year-old Daihatsu Sirion?
At 13 years old, the median Daihatsu Sirion at its MOT had covered 59,000 miles, and the middle half had between 41,000 and 83,000 miles.
What do MOT testers most often advise on a Daihatsu Sirion?
The most common advisories were brake pipes (15.2 in 100 tests), tyre tread (12.2 in 100 tests), tyres (12.1 in 100 tests).

Other Daihatsu models

Overall MOT pass rate in 2023. Compare all Daihatsu models or see every make.

Sirion70.1%

How these figures are made. We counted every initial MOT test (not retests) of cars and light vans in Great Britain in 2023 from the DVSA anonymised MOT dataset, 33,842,940 tests in all. Pass rate is the share of initial tests that ended in a pass, counting faults fixed during the test. Age is whole years from first registration to the test, so a car having its first MOT a few weeks early counts as 2.

Like-for-like pass rates average each model's pass rate at ages 3 to 10 with the same age mix for every model, so a model is not flattered by a young fleet or penalised by an old one. Models are grouped by the first word of the DVSA model name, and names that cover several models are left out.

Contains public sector information licensed under the Open Government Licence v3.0. RegTail's analysis of the DVSA anonymised MOT dataset, 2023 tests.