At a glance
How 2,356 first tests went in 2025.
- Passed first time
- 57 in every 100
- Did not pass first time
- 43 in every 1001,011 failed first-attempt tests
- The typical car
- 24 yearsabout 93,622 miles
- First tests counted
- 2,356
What failed most often
- Headlight aim14 in every 100 failed tests
- Suspension mounting area (rear)10 in every 100 failed tests
- Individual sidelight or tail light (front)9 in every 100 failed tests
How we count this. Data: UK MOT open data, 2025. Only Class 4 cars on their first MOT of the year are counted. A car that fails and is fixed at the test station still counts as a fail in the first-attempt rate. These are raw results, not adjusted for age, mileage, or peer mix. The MOT does not test engine or gearbox internals.
These are patterns across 2001 Vauxhall Astra vehicles in 2025, not a prediction that any one car will have them. Faults are grouped by part of the car. They come from MOT defect codes, not manufacturer bulletins, recalls or a diagnosis of any one car.
Suspension
Six faults. The strongest is the macpherson strut pins and bushes (front): 12 times as often as on similar cars.
Figures below are measured across the 985 of 1,011 failed first attempts (97.4%) that recorded an odometer reading in 2025. Mileage is needed to compare like with like. 2.6% of failures are excluded because no mileage was recorded, so treat these shares as indicative for this model year.
We only list faults with at least 20 failures and a rate of about 2.0 times that of similar cars, which keeps one-off results out of the list.
Macpherson strut pins and bushes (front)
What it means
A suspension pin or bush that is excessively worn is graded Major. One likely to become detached is graded Dangerous. DVSA uses its general suspension pin, bush or joint wording here, not anything specific to a strut.
Also noted as an advisory
Testers also noted it as an advisory, worn but not yet failing, on 50 first tests, 6.4 times as often as on similar cars.
Suspension sub-frame mounting area (front)
What it means
Structure around a sub-frame mounting that is so weakened that control of the vehicle is likely to be adversely affected is graded Dangerous, whether it is damaged, fractured, corroded or inadequately repaired. It is Major when strength is significantly reduced by excessive corrosion, damage or a fracture, or when it is inadequately repaired.
Also noted as an advisory
Testers also noted it as an advisory, worn but not yet failing, on 65 first tests, 11 times as often as on similar cars.
Macpherson strut (front)
What it means
Many MacPherson strut top bushes are designed to have significant lateral play when the suspension hangs free, so a top bush is rejected only when the play comes from wear or maladjustment. A top bush or bearing with excessive wear or free play is Major. Rubber or synthetic bushes are rejected only for serious deterioration of the bonding or flexible material.
Coil spring (rear)
What it means
A missing bump stop rubber is not a reason to fail a coil spring. When the vehicle is jacked and lowered, a spring that does not correctly locate as the suspension returns to its normal running position is rejected as insecurely attached. A missing spring is Major, and graded Dangerous where directional control is affected.
Also noted as an advisory
Testers also noted it as an advisory, worn but not yet failing, on 159 first tests, 2.0 times as often as on similar cars.
Anti-roll bar linkage ball joint dust cover (front)
What it means
A suspension joint dust cover that is severely deteriorated is Minor. It becomes Major once it is missing or no longer prevents the ingress of dirt, so what matters is whether it still keeps dirt out. DVSA words this for any suspension joint dust cover, and files it here under anti-roll bars.
Anti-roll bar linkage ball joints (front)
What it means
Excessive wear on an anti-roll bar linkage ball joint is Major. A joint likely to become detached is graded Dangerous.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage. Advisories count notes recorded on failed first tests only.
Brakes
Two faults. The strongest is the rigid brake pipes (front): 2.5 times as often as on similar cars.
Rigid brake pipes (front)
What it means
Chafing, corrosion or damage to a rigid brake pipe justifies rejection once its wall thickness is reduced by a set amount, although DVSA accepts this is not easy to determine. If a tester is not sure, the benefit of the doubt applies. A leaking pipe or connection is graded Dangerous on a hydraulic system and Major on an air system.
Also noted as an advisory
Testers also noted it as an advisory, worn but not yet failing, on 137 first tests, 2.0 times as often as on similar cars.
Brake performance not tested
What it means
A brake performance test recorded as unable to be tested is Major. DVSA says the result must only be used where it becomes apparent during the test that the item cannot be tested, and this could not have been identified before starting. The reason has to go in the additional information box.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage. Advisories count notes recorded on failed first tests only.
Body and structure
One fault: exhaust system (rear), 2.3 times as often as on similar cars.
Exhaust system (rear)
What it means
Exhaust fumes causing a danger to health of persons on board are graded Dangerous, and so is a silencer likely to become detached. Fumes entering the cabin are Major. One or more missing or defective mountings does not necessarily make the exhaust insecure, since testers assess the overall security of the system.
Also noted as an advisory
Testers also noted it as an advisory, worn but not yet failing, on 60 first tests, 2.3 times as often as on similar cars.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage. Advisories count notes recorded on failed first tests only.
Advisories
Other things testers noted as worn or close to failing, more often than on similar cars.
An advisory is a note from the tester about something that has not failed yet. It is an early warning, not a fail. Advisories for the faults above are shown with those faults.
Swivel pins and bushes (rear)
Rigid brake pipes (rear)
Suspension sub-frame (front)
Data: UK MOT open data, 2025. Counts cover advisories recorded on failed first tests only, compared with cars of the same age and mileage.
MOT pass rates
How first tests ended, and how the pass rates are counted.
- Passed first time
- 57in every 100
- Passed on the first test.
- Fixed at the station
- 8in every 100
- Failed, then fixed at the test station the same day.
- Failed
- 35in every 100
- Did not pass, and were not fixed at the test station.
First-attempt pass 57.1% of 2,356 first tests (2025): only cars that passed first time count. Official-style pass 65.5%: cars fixed at the test station also count as a pass. The 8 fixed and the 35 not fixed make the 43 in every 100 that did not pass first time.
Same model, other years
Passed first time in every 100, all tested in 2025.
Newer cars are younger, so look for a jump rather than the climb. A year earlier (2024), when these cars were a year younger, 56 in every 100 passed first time.
| Year | Passed first time | First tests |
|---|---|---|
| 1997 | 59 in every 100 | 419 |
| 1998 | 61 in every 100 | 424 |
| 1999 | 56 in every 100 | 739 |
| 2000 | 56 in every 100 | 1,248 |
| 2001 This car | 57 in every 100 | 2,356 |
| 2002 | 55 in every 100 | 4,206 |
| 2003 | 57 in every 100 | 5,631 |
| 2004 | 56 in every 100 | 5,960 |
| 2005 | 53 in every 100 | 10,854 |
| 2006 | 51 in every 100 | 16,611 |
| 2007 | 53 in every 100 | 27,312 |
| 2008 | 55 in every 100 | 28,455 |
| 2009 | 55 in every 100 | 29,686 |
| 2010 | 59 in every 100 | 40,145 |
| 2011 | 61 in every 100 | 37,568 |
| 2012 | 64 in every 100 | 44,619 |
| 2013 | 65 in every 100 | 52,491 |
| 2014 | 66 in every 100 | 48,410 |
| 2015 | 67 in every 100 | 44,368 |
| 2016 | 73 in every 100 | 53,101 |
| 2017 | 78 in every 100 | 43,869 |
| 2018 | 80 in every 100 | 28,645 |
| 2019 | 83 in every 100 | 20,311 |
| 2020 | 83 in every 100 | 5,926 |
| 2021 | 87 in every 100 | 5,634 |
| 2022 | 89 in every 100 | 2,817 |
If you are buying one
What this year's MOT record means for the decision in front of you.
Mileage matters most on a 2001 Astra.
Of 2001 Astra vehicles with under 64,000 miles, 68 in every 100 passed their 2025 MOT first time. With 131,000 miles or more, 54 in every 100 did.
What to check at your mileage
How often each fault turned up on a failed first test, by the car's mileage. Read it as: what is likely to need looking at on a car like the one in front of you.
| Under 64,000 | 85,000–105,000 | 131,000 and over | |
|---|---|---|---|
| Headlight aim | 5.5 | 5.8 | 5.4 |
| Suspension mounting area (rear) | 1.3 | 3.9 | 7.5 |
| Individual sidelight or tail light (front) | 1.3 | 4.8 | 5.8 |
| Petrol emissions (with catalyst) | 0.4 | 4.1 | 3.7 |
| Handbrake efficiency below minimum (roller test) | 1.1 | 3.2 | 5.4 |
Faults per 100 first tests, by the car's mileage at the test.
When a car fails
of failed cars had one item to fix.
of failed cars had three or more items to fix.
of all first tests had a defect the tester marked dangerous (unsafe to drive away).
Every figure here is a first-attempt MOT rate from DVSA open data for this model line, for cars of this model year tested in 2025. Each mileage band holds a fifth of the tests. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.
FAQs
Short answers about how to read this model-year guide.
About this data
How this page is built and what it can (and can't) say.
These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars, not a full reliability score, and not a pass/fail verdict on any individual vehicle.
What we include
UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.
Same-day repairs
PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.
How we compare
We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.
What this does not cover
- MOTs do not cover engine internals, gearboxes, or many electronics; this is not a full reliability score.
- Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
- Age and mileage matching reduces, but does not remove, differences in how cars were used and maintained.
- If the data for a car is too thin to say anything useful, we say so rather than guess.
Contains public sector information licensed under the Open Government Licence v3.0.
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