At a glance
How 1,453 first tests went in 2025.
- Passed first time
- 54 in every 100
- Did not pass first time
- 46 in every 100666 failed first-attempt tests
- The typical car
- 24 yearsabout 76,416 miles
- First tests counted
- 1,453
What failed most often
- Drive shaft joints and boots (front)11 in every 100 failed tests
- Windscreen washers10 in every 100 failed tests
- Airbag warning light10 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 Renault Clio 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.
Lamps and electrical
Two faults. The strongest is the hazard warning switch: 15 times as often as on similar cars.
Figures below are measured across the 664 of 666 failed first attempts (99.7%) that recorded an odometer reading in 2025. Mileage is needed to compare like with like.
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.
Hazard warning switch
Number plate lights
What it means
Registration plate lamps must light up the rear registration plate and operate at the same time as the position lamps. A missing or inoperative lamp is Major when the plate has only one lamp or all its lamps are not working, and Minor when the plate has several lamps or light sources and not all have failed. A lamp throwing direct white light to the rear is also Minor.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Steering
One fault: steering rack (front), 7.1 times as often as on similar cars.
Steering rack (front)
What it means
Steering gear casing retaining devices dangerously loose, or visible relative movement to the chassis or bodywork, is graded Dangerous. A casing not properly attached, or fractured, is Major, but a fracture that affects the stability or attachment of the casing is Dangerous. A gaiter damaged but still keeping dirt out is Minor, and Major once missing or no longer doing so.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Suspension
Four faults. The strongest is the anti-roll bar linkage pins and bushes (front): 5.2 times as often as on similar cars.
Anti-roll bar linkage pins and bushes (front)
What it means
Excessive wear in an anti-roll bar linkage pin or bush is Major. If the pin or bush is likely to become detached, it is graded Dangerous. The wording is DVSA's general one for a suspension pin, bush or joint.
Also noted as an advisory
Testers also noted it as an advisory, worn but not yet failing, on 67 first tests, 4.3 times as often as on similar cars.
Wheel bearings (rear)
Shock absorbers (front)
What it means
Slight seepage that leaves a film of fluid on a shock absorber does not fail it. Severe leakage, or damage so that it does not function, is Major. A shock absorber missing or likely to become detached is graded Dangerous, though a missing one is only rejected if shock absorbers were fitted as standard.
Coil spring (front)
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.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage. Advisories count notes recorded on failed first tests only.
Seat belts and restraints
Two faults. The strongest is the seat belt condition (rear): 4.5 times as often as on similar cars.
Seat belt condition (rear)
Airbag warning light
What it means
The airbag warning lamp (SRS MIL in DVSA's wording) is failed only if it indicates a system malfunction, which is Major. A lamp lit to show the passenger airbag is disabled is not to be regarded as a defect. Dashboard messages are not a defect in their own right, though they can help the tester confirm a malfunction.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
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.
Individual sidelight or tail light (rear)
Brake light
Macpherson strut pins and bushes (front)
Exhaust system (rear)
Track rod end (front)
Anti-roll bar pins and bushes (front)
Headlight
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
- 54in 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
- 38in every 100
- Did not pass, and were not fixed at the test station.
First-attempt pass 54.2% of 1,453 first tests (2025): only cars that passed first time count. Official-style pass 62.0%: cars fixed at the test station also count as a pass. The 8 fixed and the 38 not fixed make the 46 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, 52 in every 100 passed first time.
| Year | Passed first time | First tests |
|---|---|---|
| 1999 | 53 in every 100 | 352 |
| 2000 | 52 in every 100 | 723 |
| 2001 This car | 54 in every 100 | 1,453 |
| 2002 | 54 in every 100 | 2,429 |
| 2003 | 51 in every 100 | 3,712 |
| 2004 | 50 in every 100 | 5,667 |
| 2005 | 50 in every 100 | 6,971 |
| 2006 | 48 in every 100 | 11,297 |
| 2007 | 46 in every 100 | 15,443 |
| 2008 | 46 in every 100 | 12,941 |
| 2009 | 46 in every 100 | 14,127 |
| 2010 | 46 in every 100 | 20,410 |
| 2011 | 45 in every 100 | 15,582 |
| 2012 | 46 in every 100 | 13,335 |
| 2013 | 53 in every 100 | 18,839 |
| 2014 | 52 in every 100 | 24,737 |
| 2015 | 55 in every 100 | 22,966 |
| 2016 | 56 in every 100 | 21,346 |
| 2017 | 63 in every 100 | 18,461 |
| 2018 | 68 in every 100 | 18,935 |
| 2019 | 73 in every 100 | 16,484 |
| 2020 | 83 in every 100 | 10,443 |
| 2021 | 85 in every 100 | 8,884 |
| 2022 | 88 in every 100 | 7,466 |
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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