At a glance
How 3,203 first tests went in 2025.
- Passed first time
- 53 in every 100
- Did not pass first time
- 47 in every 1001,495 failed first-attempt tests
- The typical car
- 12 yearsabout 97,405 miles
- First tests counted
- 3,203
What failed most often
- Coil spring (front)19 in every 100 failed tests
- Drive shaft joints and boots (front)19 in every 100 failed tests
- Number plate lights12 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 2013 Citroen DS4 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.
Brakes
Three faults. The strongest is the electronic parking brake: 31 times as often as on similar cars.
Figures below are measured across the 1,494 of 1,495 failed first attempts (99.9%) 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.
Electronic parking brake
What it means
An electronic parking brake is applied electronically but must still be maintained in operation by direct mechanical means. It may apply automatically in certain conditions, such as when the ignition is switched off or when the driver's door is opened. A control that is missing, defective or inoperative is Major, and so is a malfunction warning.
Electronic stability control
What it means
An ESC warning lamp is failed only when the tester is certain it indicates an ESC malfunction, because the lamp takes various forms and the owner's handbook may need checking. The system is also called ESP, VDC or DSC, among many other names. Every failure row is Major, covering the lamp, wheel speed sensors, wiring, other components and the switch.
Anti-lock braking system (ABS)
What it means
ABS is failed as removed only where it has obviously been removed, because not every vehicle in the age range where removal is not permitted has ABS. A warning lamp that does not light or shows an ABS fault is Major, as is a missing or excessively damaged wheel speed sensor. Every failure row for this component is Major.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Steering
One fault: steering rack (front), 7.4 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.
Body and structure
One fault: drive shaft joints and boots (front), 3.9 times as often as on similar cars.
Drive shaft joints and boots (front)
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Lamps and electrical
One fault: number plate lights (rear), 3.4 times as often as on similar cars.
Number plate lights (rear)
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.
Suspension
One fault: coil spring (front), 2.5 times as often as on similar cars.
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
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.
Headlight (front)
Suspension arm ball joint (front)
Shock absorbers (rear)
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
- 53in every 100
- Passed on the first test.
- Fixed at the station
- 7in every 100
- Failed, then fixed at the test station the same day.
- Failed
- 40in every 100
- Did not pass, and were not fixed at the test station.
First-attempt pass 53.3% of 3,203 first tests (2025): only cars that passed first time count. Official-style pass 60.4%: cars fixed at the test station also count as a pass. The 7 fixed and the 40 not fixed make the 47 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.
| Year | Passed first time | First tests |
|---|---|---|
| 2011 | 49 in every 100 | 904 |
| 2012 | 52 in every 100 | 1,961 |
| 2013 This car | 53 in every 100 | 3,203 |
| 2014 | 57 in every 100 | 2,023 |
| 2015 | 58 in every 100 | 988 |
If you are buying one
What this year's MOT record means for the decision in front of you.
Mileage matters most on a 2013 Citroen DS4.
Of 2013 Citroen DS4 vehicles with under 75,000 miles, 61 in every 100 passed their 2025 MOT first time. With 121,000 miles or more, 48 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 75,000 | 90,000–104,000 | 121,000 and over | |
|---|---|---|---|
| Coil spring (front) | 8.7 | 8.6 | 10.3 |
| Drive shaft joints and boots (front) | 9.6 | 6.8 | 8.9 |
| Number plate lights | 3.4 | 5.9 | 5.7 |
| Suspension arm ball joint (front) | 1.5 | 4.9 | 6.6 |
| Headlight aim | 2.8 | 3.5 | 5.7 |
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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