2018 · 6 years old at test · Diesel mostly

2018 DS DS4 MOT pass rate and common faults

374 MOT tests in 2024. 71.7% passed first time, compared with 82.5% for all cars the same age.

87Well below average
Passed first time71.7%
Failed or needed repairs28.3%
Typical mileage at test43,000

Most common reasons for failing

Share of all 374 tests where this item caused a failure.

  1. Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt5.6%
  2. Coil spring: fractured or broken5.6%
  3. Tread depth below requirements of 1.6mm4.8%
    26 marked dangerous
  4. Wipers: does not clear the windscreen effectively4.5%
  5. Brake discs: significantly and obviously worn1.6%
  6. Brake pads: less than 1.5 mm thick1.6%
    6 marked dangerous
  7. Exhaust system: has a major leak of exhaust gases1.3%
  8. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.3%
  9. Registration plate lamp(s): inoperative in the case of a single lamp or all lamps1.3%

Problem areas

Failure items found per 100 tests, by part of the car.

  1. Tyres8.8%
  2. Brakes8.3%
  3. Lights & electrics8.3%
  4. Body & chassis8.0%
  5. Suspension7.0%
  6. Visibility (wipers, screen, mirrors)5.9%
  7. Emissions & leaks1.1%
  8. Steering0.5%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm19.3%
  2. Brake discs: in such a condition that it is seriously weakened19.0%
  3. Brake pads: less than 1.5 mm thick7.0%
  4. Tyres - condition: has a tear, caused by separation or partial failure of its structure6.4%
  5. Brake discs: significantly and obviously worn2.9%

What this means if you are buying one

This model year fails more often than most cars its age, so budget for repairs and check the history carefully. Before buying, check the area that fails most: joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

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Questions

What is the MOT pass rate for a 2018 DS DS4?

In 2024, 71.7% of 2018 DS DS4 cars passed their MOT first time, across 374 tests. The average for all 6-year-old cars was 82.5%.

What are the most common MOT failures on a 2018 DS DS4?

The most common failure reasons were joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt; coil spring: fractured or broken; tread depth below requirements of 1.6mm. The biggest problem area was tyres.

Is the 2018 DS DS4 reliable at MOT time?

Its MOT Rank score is 87, which is well below average for a car of its age (100 means exactly average).