D4 and D5 diesel DPF and AdBlue faults on short-journey cars
- Typically appears
- 60,000+ miles
- What to inspect
- Check AdBlue level warnings and evidence of completed regenerations
- Typical repair
- DPF forced regen or replacement · £250–£1,600

Scored from 8 documented faults · reviewed by the VehicleFaults Research Team
On our documented-fault scoring the Volvo V90 rates 3.9 out of 10 · buy with caution. We hold 8 known faults for it and 3 are rated high severity, so the risk is real but contained. The weak points cluster around engine, suspension and electrical. A well-serviced example with evidence for the big-ticket items is usually a safe buy; the score describes the model, not the specific car in front of you.
Verdict · Walk unless the history is spotless
Weak points cluster around engine, suspension, electrical, transmission.
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Build the inspection planD4 and D5 diesel DPF and AdBlue faults on short-journey cars
Rear air suspension leaks on cars fitted with it
Water ingress into the front footwells caused by blocked panoramic sunroof drains or shrinking roof seals, risking CEM (Central Electronic Module) damage.
Sensus screen rebooting and slow cold-start response
Automatic gearbox shunt from missed fluid changes
Costs are indicative UK independent-garage bands for budgeting and negotiation · never a quote.
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