DS Ds4 MOT Failures

An analysis of 39,700 real DVSA MOT tests on the DS Ds4 — what fails, how often, and how that compares to every other car on UK roads. Generations covered: C4P (2015–2018).

Where the DS Ds4 fails its MOT

The single biggest MOT failure point on the DS Ds4 is transmission shaft constant velocity joint boot... — this model is 14 times more likely to fail on this item than the average car on UK roads. That makes it worth watching for anyone buying or owning this model. Across 39,700 MOT tests, 4.86% of all DS Ds4 tests recorded this as a failure.

Bodywork failures usually mean structural corrosion — not cosmetic rust, but rot that affects the car's structural integrity. Check sills, subframes, and chassis rails carefully, especially on older examples.

Other notable weak points include abs fault (8.5x the fleet average), front or rear fog lamp not securely attached (54x the fleet average), headlight fault (12x the fleet average), and rear registration plate lamp or light source mi... (9.9x the fleet average). These ratios compare the DS Ds4's failure rate on each item against the national average for all cars tested — a ratio of 10x means this model fails ten times more often than a typical car.

The failures span 5 categories: Bodywork, Suspension, Lights & Electrics, Tyres, Brakes. If you're inspecting a DS Ds4 before purchase, these are the areas to focus on — and if any have been flagged as advisories on a previous MOT, they're likely to become failures in the near future.

How failures change with mileage

The DS Ds4's weak points shift as the car covers more miles. Understanding these patterns helps you know what to expect — and what to budget for — at each stage of ownership.

Under 60,000 miles

At this mileage, most failures are either design-related or caused by age rather than wear. Components like bushes and drop links may not have been replaced yet, and original-fit parts can deteriorate even on low-mileage cars that spend a lot of time sitting.

For the DS Ds4 specifically, the DVSA data shows the most common failures at this mileage are front or rear fog lamp not securely attached (54x the average) and transmission shaft constant velocity joint boot... (14x). headlight fault (12x) and rear registration plate lamp or light source mi... (9.9x) also appear frequently.

60,000 to 100,000 miles

This is where routine wear items start to show up. Brake components, tyres, and exhaust parts have done serious work by this point. Cars that have been well serviced will show fewer of these failures — this mileage band is where good maintenance really separates the well-kept from the neglected.

For the DS Ds4 specifically, the DVSA data shows the most common failures at this mileage are front or rear fog lamp not securely attached (31x the average) and abs fault (8.5x). rear registration plate lamp does not illuminat... (6.5x) and transmission shaft constant velocity joint boot... (5.3x) also appear frequently.

Known issues beyond the MOT

An MOT only tests roadworthiness at a single point in time — it won't catch developing faults, intermittent problems, or issues that haven't yet reached the failure threshold. These are the issues that DS Ds4 specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.

CV joint boot failure Major

The constant velocity joint protective boots on DS4 driveshafts fail at significantly higher rates than the fleet average. Affects C4P; typical independent garage repair cost is £200–£350.

Shock absorber failure Major

The shock absorbers on diesel DS4 variants fail at rates up to 14.7 times higher than the fleet average, particularly the 2.0 diesel between 60,000-80,000 miles. Affects C4P; typical independent garage repair cost is £300–£500.

Front coil spring fracture Major

Front coil springs on the DS4 fracture at 4 times the national fleet average, with the highest failure rate on 1.6 diesel variants at 20,000-40,000 miles. Affects C4P; typical independent garage repair cost is £200–£350.

Brake disc premature wear and cracking Major

Brake discs on the DS4 show excessive wear and cracking at up to 3 times the fleet average failure rate. Affects C4P; typical independent garage repair cost is £200–£400.

For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full DS Ds4 common problems breakdown.

What to check before buying a DS Ds4

Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a DS Ds4:

Bodywork — check for transmission shaft constant velocity joint boot.... Suspension — check for abs fault. Lights & Electrics — check for front or rear fog lamp not securely attached, headlight fault, rear registration plate lamp or light source mi..., rear registration plate lamp does not illuminat....

Beyond the MOT items, ask specifically about cv joint boot failure and shock absorber failure. These won't show up on a standard MOT but can be expensive to fix — repairs start from £200. A specialist pre-purchase inspection is worth the investment on this model.

Always check the car's full MOT history for patterns — recurring advisories often become failures within 12 months. And verify the service history to confirm maintenance has been kept up to schedule. Enter any reg into our free car check to see the complete picture.

MOT failure data sourced from DVSA bulk test records via data.gov.uk. Ratios compare this model's failure rate against the national fleet average. Known issues sourced from manufacturer bulletins, specialist workshops, and verified owner reports.