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Common problems by part

DS DS4 exhaust, emissions and leaks problems

DVSA MOT tests 2022–2025 · 10,290 MOT tests · Updated

At 10 years, 2.7 in 100 MOT tests of the DS DS4 failed on exhaust, emissions and leaks, against 2.8 for all class 4 vehicles the same age (all test years; 10,290 MOT tests) [1].

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  • Against all class 4 vehicles the same age: about average for all class 4 vehicles the same age (all test years), 279 MOT tests with a fail
  • By age: seen at 9 ages from 5 to 13 years, 58,336 MOT tests
  • MOT tests at 10 years: 10,290 for the DS DS4

Figures are for the model as a whole, not for one car.

What the MOT tests show

What we know

2.7 fails per 100 MOT tests at 10 years, against 2.8 for all class 4 vehicles tested at 10 (all test years). That is about average.

Why it matters

An exhaust, emissions and leaks fail stops the car passing until it is fixed.

What to check

Start the car from cold and look for smoke at the exhaust, listen for blowing joints, and look under the engine and gearbox for fresh oil or fluid drips.

DS DS4 exhaust, emissions and leaks fails by age

DS DS4 exhaust, emissions and leaks fails per 100 MOT tests by ageSolid line: the DS DS4. Dashed line: all cars the same age. The table below lists every value.0245 years: 0.9 per 100 (all cars 1.0), 1,404 MOT tests56 years: 1.5 per 100 (all cars 1.3), 3,791 MOT tests67 years: 2.3 per 100 (all cars 1.7), 5,714 MOT tests78 years: 2.1 per 100 (all cars 2.1), 7,546 MOT tests89 years: 2.3 per 100 (all cars 2.4), 10,250 MOT tests910 years: 2.7 per 100 (all cars 2.8), 10,290 MOT tests1011 years: 2.8 per 100 (all cars 3.2), 9,362 MOT tests1112 years: 3.2 per 100 (all cars 3.7), 6,809 MOT tests1213 years: 3.9 per 100 (all cars 4.3), 3,170 MOT tests13
Fails per 100 MOT tests by age, all first-use years pooled. DS DS4 All class 4 vehicles the same age
AgeMOT testsFails per 100All class 4 vehicles the same age
51,4040.91.0
63,7911.51.3
75,7142.31.7
87,5462.12.1
910,2502.32.4
1010,2902.72.8
119,3622.83.2
126,8093.23.7
133,1703.94.3

All first-use years of the DS DS4 pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years.

What fails in the exhaust, emissions and leaks at 10 years

Advisories (not fails)

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  • Model risks for this year and fuel
  • What similar cars did at their next MOT
  • Repairs ahead
  • Viewing checklist

See a sample report

How to check on a test drive

Start the car from cold and look for smoke at the exhaust, listen for blowing joints, and look under the engine and gearbox for fresh oil or fluid drips.

The most common advisory here in MOT records: Engine oil leaks: leak, but not excessive.

Check one DS DS4, not the average

The figures here describe DS DS4 cars as a group. These free tools answer for one car. Each line says what the tool reads.

  • Check a DS DS4's MOT history Every MOT test, fail item, advisory and mileage reading DVSA holds for that registration.
  • MOT advisory checker Paste an advisory or defect to read DVSA's wording, its grade and what tends to happen at the next MOT.

Other DS DS4 problems

Exhaust, emissions and leaks on rival models

Questions people ask

Does the DS DS4 have more exhaust, emissions and leaks problems than other cars?

2.7 in 100 MOT tests at 10 years, against 2.8 for all class 4 vehicles the same age: about average by our test (all test years; 10,290 MOT tests).

How common are DS DS4 exhaust, emissions and leaks problems?

2.7 in 100 MOT tests at 10 years failed on exhaust, emissions and leaks, against 2.8 for all class 4 vehicles the same age (all test years; 10,290 MOT tests).

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 58,336 MOT tests. Accessed 7 Oct 2026.

Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare