Is the Citroen C4 reliable?

On MOT evidence the Citroen C4 is well below average. It passes 63.8% of tests once age and mileage are accounted for, against a national average of 72.3%, which ranks it 231 of 262 models with enough data for a fair comparison. This measures how often the car meets the MOT standard, not how often it breaks down or what a repair costs.

What do testers most often warn about on a Citroen C4?

The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 32.2% of all Citroen C4 tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a Citroen C4 usually have at its MOT?

The average odometer reading recorded at test is 83,994 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

Which Citroen C4 years are the most reliable?

Going by MOT pass rate, Citroen C4 cars first registered 2020–2022 do best at 81.8%, and those registered 2010 and earlier do worst at 48.3%. But that ordering is mostly age, not build year: almost every model passes less often as it wears, so the newest cars top this list whatever they are. A specific year looking strong here means little on its own; the failure items above, and the individual car's own MOT history, tell you far more.

Does a Citroen C4 get harder to pass as it ages?

Yes. At 3 to 5 years old, 81.8% of Citroen C4 tests pass. By fifteen years or more, that falls to 48.3%. Nearly every model follows this pattern, which is why comparing raw pass rates between models is misleading unless age is accounted for.

Are most Citroen C4 models petrol or diesel?

Of the Citroen C4 cars tested, 75% are diesel, 25% are petrol. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

Model reliability file

Citroen C4 MOT pass rate & common failures

From 125,166 recorded MOT tests of the Citroen C4, published by DVSA.

Data updated 29 July 2026

Quick answer

The Citroen C4 passes 63.8% of MOT tests once results are adjusted for the age and mileage of the cars tested, against a national average of 72.3%. That is well below average, ranking it 231 of 262 models with enough data to compare fairly. Based on 125,166 tests. Its most commonly recorded failure is transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, which appears in 21.4% of failed tests. Cars of this model average 83,994 miles on the odometer when tested.

At a glance

Pass rate, adjusted for age and mileage

63.8%national average72.3%unadjusted59.7%range covered100%rank231 of 262

The C4 is 8.5 percentage points below the national pass rate once age and mileage are accounted for, which is well below average. The unadjusted figure is 59.7%; the difference is what the age and mileage of this model’s fleet was hiding.

DVSA recorded wording

Most common failure items

Share of failed Citroen C4 tests in which each item was recorded. One failed test often lists several items, so these do not sum to 100%.

1.A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc21.4%
8,844 occurrencesDriveshaft CV joint gaiter split or missing explained
2.Tyre tread depth not in accordance with the requirements13.4%
5,527 occurrencesTyre worn close to the legal limit explained
3.A spring or spring component fractured or seriously weakened12.4%
5,121 occurrencesRoad spring broken or fractured explained
4.A steering ball joint with excessive wear or free play10.5%
4,361 occurrencesBall joint worn explained
5.A brake lining or pad worn below 1.5mm10.4%
4,289 occurrencesBrake drum or shoe worn or contaminated explained
6.A suspension joint dust cover missing or no longer prevents the ingress of dirt etc10.3%
4,262 occurrencesSuspension joint dust cover missing or split explained
7.A suspension pin, bush or joint excessively worn9.4%
3,874 occurrencesSuspension arm bush worn explained
8.Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning8.9%
3,673 occurrencesStop lamp not working explained
9.A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps8.4%
3,493 occurrencesLamp not working explained
10.A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning7.8%
3,205 occurrencesLamp not working explained

Warnings without a failure

Most common advisories

Share of all Citroen C4 tests carrying each advisory. The denominator differs from the failure list above because an advisory can be issued on a car that passed.

1.Tyre tread depth not in accordance with the requirements32.2%
40,265 testsTyre worn close to the legal limit explained
2.Brake disc or drum excessively weakened, insecure or fractured20.3%
25,466 testsBrake disc worn, pitted or scored explained
3.A suspension pin, bush or joint excessively worn14.7%
18,400 testsSuspension arm bush worn explained
4.A brake lining or pad worn below 1.5mm11.0%
13,779 testsBrake drum or shoe worn or contaminated explained
5.A tyre seriously damaged10.9%
13,592 testsTyre damaged or deteriorated explained
6.Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users6.7%
8,439 tests
7.Brake disc or drum significantly and obviously worn4.9%
6,094 testsBrake disc worn, pitted or scored explained
8.Child Seat fitted not allowing full inspection of adult belt4.5%
5,594 tests

The rest of the record

Everything else recorded on the Citroen C4

The 22 other defects testers recorded on this model, beyond the most common listed above. Each links to what it means and what it takes to put right.

Known faults

Citroen C4 common problems, by part and by year

The same failure record read the way a buyer asks the question: which parts wear out on a C4, when they start, and how each registration year compares — including the steps that mark a generation change.

C4 common problems and results by year

How wear changes the picture

C4 pass rate by age and registration year

How often the Citroen C4 passes at each age, with the years those cars were first registered. Tests are from 2025, so a car aged 3 to 5 was first used in 2020–2022.

3–5 yrsreg. 2020–202282%

6–8 yrsreg. 2017–201975%

9–11 yrsreg. 2014–201660%

12–14 yrsreg. 2011–201354%

15+ yrsreg. 2010 and earlier48%

Read this as an age curve rather than a verdict on particular model years. Nearly every car passes less often as it gets older, so a newer C4 outscoring an older one says more about wear than about how that year’s cars were built. Bands holding too few tests to be meaningful are omitted rather than shown as a rate.

What gets tested

The C4 fleet

Average mileage recorded at test: 83,994
Fuel mix of tested cars: Diesel74.9%
Petrol25.1%

Trim names grouped into this model (22)

Recorded exactly as DVSA holds them. Trim-level names are rolled up so one model is not split across a dozen thin pages.

C4 + PURETECH S/S
C4 + PURETECH S/S AUTO
C4 C-SERIES EDITION B-HDI SS A
C4 C-SERIES EDITION BLUEHDI SS
C4 C-SERIES EDITION PTECH SS A
C4 C-SERIES EDITION PURETCH SS
C4 MAX PURETECH S/S
C4 MAX PURETECH S/S AUTO
C4 SENSE + BLUEHDI S/S
C4 SENSE + BLUEHDI S/S AUTO
C4 SENSE + PURETECH S/S
C4 SENSE + PURETECH S/S AUTO
C4 SENSE BLUEHDI S/S
C4 SENSE PURETECH S/S
C4 SHINE + BLUEHDI S/S AUTO
C4 SHINE + PURETECH S/S AUTO
C4 SHINE BLUEHDI S/S
C4 SHINE BLUEHDI S/S AUTO
C4 SHINE PURETECH S/S
C4 SHINE PURETECH S/S AUTO
C4 VTR+
C4 YOU PURETECH S/S

Check a specific Citroen C4

A model average tells you the pattern. Its own MOT record tells you the car.

Compare within the range

Other Citroen models

Citroen C3 — 63.9% adjusted
Citroen Berlingo — 61.9% adjusted
Citroen C1 — 68.7% adjusted
Citroen DS3 — 51.9% adjusted
Citroen Dispatch — 62.0% adjusted
Citroen C3 Aircross — 84.6% unadjusted
All Citroen models

Similar test volumes

Compare against other makes

Land Rover Range Rover Sport — 81.1% adjusted, ranked 47
Peugeot 308 — 67.5% adjusted, ranked 202
Audi A5 — 79.1% adjusted, ranked 61
Toyota Corolla — 78.8% adjusted, ranked 64

Common questions

Is the Citroen C4 reliable?: On MOT evidence the Citroen C4 is well below average. It passes 63.8% of tests once age and mileage are accounted for, against a national average of 72.3%, which ranks it 231 of 262 models with enough data for a fair comparison. This measures how often the car meets the MOT standard, not how often it breaks down or what a repair costs.
What is the most common MOT failure on a Citroen C4?: The item recorded most often is "A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc", which appears in 21.4% of failed Citroen C4 tests. Because one failed test can list several items, these shares do not add up to 100%.
What do testers most often warn about on a Citroen C4?: The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 32.2% of all Citroen C4 tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a Citroen C4 usually have at its MOT?: The average odometer reading recorded at test is 83,994 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.
Which Citroen C4 years are the most reliable?: Going by MOT pass rate, Citroen C4 cars first registered 2020–2022 do best at 81.8%, and those registered 2010 and earlier do worst at 48.3%. But that ordering is mostly age, not build year: almost every model passes less often as it wears, so the newest cars top this list whatever they are. A specific year looking strong here means little on its own; the failure items above, and the individual car's own MOT history, tell you far more.
Does a Citroen C4 get harder to pass as it ages?: Yes. At 3 to 5 years old, 81.8% of Citroen C4 tests pass. By fifteen years or more, that falls to 48.3%. Nearly every model follows this pattern, which is why comparing raw pass rates between models is misleading unless age is accounted for.
Are most Citroen C4 models petrol or diesel?: Of the Citroen C4 cars tested, 75% are diesel, 25% are petrol. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

How this was worked out

Method and limits

Figures come from the DVSA anonymised MOT testing dataset, published under the Open Government Licence. Only class 4 initial tests are counted: retests are excluded so a car appears once, and abandoned tests are excluded entirely. The adjusted rate is directly standardised across twenty-five age and mileage bands and reweighted onto the national distribution, so this model is compared against cars that have lived a similar life rather than against a younger or lighter-used fleet.

An MOT measures whether a car met a legal standard on the day. It is not a breakdown record, a service history or a running-cost estimate, and a pass rate is a property of a fleet rather than a prediction about one car.