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DS Ds5 Problems & Known Issues

The most common DS Ds5 problems ranked by severity — what to watch for, what it costs to fix, and what happens if you ignore it.

Generations

DS5_Gen1 — First Generation
2015–2019
1.6 BlueHDi, 2.0 BlueHDi

Top issues to watch for

The most serious DS Ds5 problems ranked by severity. We track 5 known issues — here are the ones you need to know about first.

Major
CV joint boot deterioration (DS5_Gen1)
DS5_Gen12015–201920k–100k miles
The constant velocity joint boots on DS5 transmission shafts deteriorate at rates significantly above the fleet average. MOT data shows the 2.0L diesel failing at 13.7 times the fleet average for severe boot deterioration and 8.8 times for missing boots between 20-40k miles. The rubber boots crack and split, allowing grease to escape and dirt to enter the CV joint. This pattern suggests either inferior boot material or design stress concentration on the DS5 platform.
What happens if ignoredSplit boots allow the CV joint grease to escape and contaminate components. Water and dirt entering the joint causes rapid wear of the ball bearings and races. Complete CV joint failure results in loss of drive to one wheel and potential damage to the transmission. Joint replacement typically costs £200-400 per side.
Independent garage
£150–£300
Specialist
£200–£350
Main dealer
£300–£500
Parts only
£60–£120
Major
Brake disc premature wear (DS5_Gen1)
DS5_Gen12015–201920k–40k miles
The 1.6L diesel DS5 shows brake disc failure at 2.4 times the fleet average in the 20-40k mile range, with discs becoming excessively weakened or fractured. This suggests either inadequate disc specification for the vehicle weight, poor quality disc material, or aggressive brake pad compound causing accelerated disc wear. The issue appears specific to the 1.6L variant.
What happens if ignoredFractured brake discs can fail completely, causing total loss of braking on the affected wheel and potential wheel lockup. Severely weakened discs reduce braking effectiveness and increase stopping distances. Complete disc and pad replacement is required, typically costing £250-400 per axle.
Independent garage
£200–£350
Specialist
£250–£400
Main dealer
£350–£550
Parts only
£80–£150
Major
DPF blockage and regeneration issues (DS5_Gen1)
DS5_Gen12015–201930k–80k miles
Both diesel engines in the DS5 use diesel particulate filters which are prone to blockage in urban driving conditions. The BlueHDi engines require regular high-temperature regeneration cycles to burn off accumulated soot, but short journeys and stop-start traffic prevent this process. Blocked DPF triggers dashboard warnings and eventually limp mode with severe power reduction.
What happens if ignoredCompletely blocked DPF requires professional cleaning at £300-500 or replacement at £1,500-2,500. The car enters limp mode with severely restricted performance when the DPF reaches critical blockage. Ignored DPF problems can damage the turbocharger and engine through excessive back pressure.
Independent garage
£300–£2,000
Specialist
£400–£2,500
Main dealer
£500–£3,000
Parts only
£800–£1,800
Minor
Fluid leakage from engine bay (DS5_Gen1)
DS5_Gen12015–201960k–80k miles
The 1.6L diesel DS5 shows excessive fluid leakage at MOT testers categorise this as environmental or safety risk leakage, suggesting significant oil or coolant loss rather than minor seepage. Common leak points on PSA diesel engines include the turbocharger oil feed lines, intercooler connections, and engine undertray pooling areas.
What happens if ignoredExcessive fluid loss can lead to engine damage through oil starvation or overheating from coolant loss. Environmental contamination from oil leaks can result in MOT failure. Large leaks may create slippery conditions for following traffic. Repair costs vary widely depending on the leak source.
Independent garage
£100–£400
Specialist
£150–£500
Main dealer
£200–£700
Parts only
£20–£150

1 more known issues tracked

Including wear items, electrical niggles, and generation-specific problems. Check a specific car to see which issues apply to its age and mileage.

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MOT failure hotspots

Based on DVSA MOT test data. These are the items where the DS Ds5 fails at a significantly higher rate than the average car.

Transmission shaft constant velocity joint boot...
Bodywork · 20-40k miles
MOT failure rate: 14x the fleet average
Sample: 859 tests
Rear registration plate lamp or light source mi...
Lights & Electrics · 40-60k miles
MOT failure rate: 7.3x the fleet average
Sample: 232 tests

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Related

DS Ds5 reliability FAQs

What are the most common problems with the DS Ds5?

The DS Ds5 has 5 known issues across 2 severity levels. The most common problems relate to CV joint boot deterioration (DS5_Gen1) and Brake disc premature wear (DS5_Gen1).

Is the DS Ds5 reliable?

The DS Ds5 has 0 dangerous and 3 major known issues. No dangerous issues are tracked, which is a positive sign.

How much does it cost to fix DS Ds5 problems?

Repair costs range widely. The most significant issue (CV joint boot deterioration (DS5_Gen1)) costs £150–£300 at an independent garage. Minor issues can be under £200. Always get a full inspection before buying.