2018 DS4 · 1,312 MOT tests
2018 DS4 reliability
2018 DS4s fail 23.7% of first MOT tests, 61% more MOT fails than the average car its age and mileage, ranking 4 of 4 DS4 years (1,312 DVSA tests, 2022 to 2024).
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- first-time fail rate (all DS4s: 29.4%)
- 23.7%
- first-time fail rate (all DS4s: 29.4%)
- fails than cars of the same age and mileage
- 61% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 5
- 35,217
- typical miles at its MOT, aged about 5
- MOT tests, 2022 to 2024
- 1,312
- MOT tests, 2022 to 2024
Year on year
2018 against the years either side
- 2017 cars: 42% more MOT fails than the average car its age (the 2018 car does worse)
- Weak spot: body, chassis and structure, 4.7% of tests fail here (762% above cars of the same age and mileage).
- Plates: a 2018 car carries a 67 plate (January–February 2018), or a 18 plate (March–August 2018), or a 68 plate (September–December 2018).
Common problems
What fails on a 2018 DS4
Fail rate by area
- Tyres6%
- Suspension5.7%
- Lights and electrics5.4%
- Windscreen, wipers and mirrors5%
- Body, chassis and structure4.7%
- Brakes4.4%
- Exhaust, emissions and leaks0.7%
Average for cars of the same age and mileage
Top failures
Coil spring fractured or broken 4.34%
A broken coil spring can leave the car sitting low or unstable, so it must be replaced before driving.
CV joint boot split or insecure 3.66%
A split CV boot lets dirt in and grease out, so the joint wears and may need full replacement.
Tyre tread below 1.6mm 3.35%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Wiper blade not clearing windscreen 3.28%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Brake pads worn below 1.5mm 1.6%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Registration plate lamp not working 1.3%
A dark number plate lamp makes the plate hard to read at night, which is illegal and must be fixed.
Common advisories
Tyre worn close to legal limit (15.78%) · Brake disc pitted or scored (13.34%) · Brake pads wearing thin (6.17%) · Tyre slightly damaged or cracking (4.5%) · Brake discs showing some wear (2.36%) · Nail in tyre, monitor (2.06%)
Other years
Every DS4 year
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Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2018 DS4 reliable?
2018 DS4s fail 23.7% of first MOT tests, 61% more MOT fails than the average car its age and mileage, ranking 4 of 4 DS4 years (1,312 DVSA tests, 2022 to 2024).
What fails on a 2018 DS4 MOT?
Most often coil spring fractured or broken (4.34% of tests), cv joint boot split or insecure (3.66% of tests), tyre tread below 1.6mm (3.35% of tests).
How many miles should a 2018 DS4 have done?
At its MOT aged about 5, a typical 2018 DS4 shows 35,217 miles. Much higher or lower is worth asking about.
What plate is a 2018 car?
A car first registered in 2018 carries a 67 plate (January–February 2018), or a 18 plate (March–August 2018), or a 68 plate (September–December 2018).
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