Car Model Guide/ Peugeot/ 508/ 508/ 2.0 HDi DW10/ Issues

2.0 HDi DW10, known issues

508 · 2010–2018 · R2 Manageable

Recorded issues3
Walk-away0
Over €1,0002
Checkable at viewing0/3
Likely spend€1,500

Likely spend is the mid cost of every issue rated common or universal, added together, what an unmaintained example owes over the next few years, not a prediction for any one car. Worst case if everything here failed at once is €3,600, which isn't a realistic scenario but is a useful ceiling.

All issues, by system

Emissions

DPF clogging and forced regenerationDPF€250–€1,800
Warning light, limp mode, oil level rising above the maximum mark from fuel dilution. The filter needs sustained hot running to regenerate. A car used for short urban trips never completes a regeneration cycle.
Check: Read the DPF soot load and the distance since the last regeneration on a scan tool, and check the engine oil level and smell it for diesel. Ask what the car was used for. A short-trip city diesel is the wrong car regardless of mileage.
EmissionscommonPartly detectableevidence: documented120–250k km
EGR cooler leakEGR cooler€400–€1,000
Coolant loss with no visible external leak, white smoke, sweet smell. The EGR cooler cracks internally and leaks coolant into the intake. BMW recalled affected diesels over a fire risk from glycol deposits igniting.
Check: Check coolant level and look for unexplained top-ups in the service history. Verify the recall was carried out. It's free and searchable by VIN.
EmissionsoccasionalPartly detectableevidence: manufacturer120–250k km

Electrical

Module and electrical faults508 platform€150–€800
Warning lights that appear and clear, an infotainment screen that reboots, and occasional central-locking or parking-sensor faults. These carry a lot of electronics and the connectors and modules age. As with most cars of this kind a tired battery is the most common root cause, though genuine module failures do happen.
Check: Scan every module rather than just the engine, work the infotainment and the parking sensors, and check the battery's age.
ElectricalcommonPartly detectableevidence: documented100–190k km

How to read this

Every issue is authored once against the part that actually carries it: the engine, the gearbox, the chassis or a shared component, and inherited by every variant that has that part. The badge next to each issue says where it comes from, so you can tell an DW10 problem from an E9x problem.

Evidence tiers. Manufacturer means a recall, technical bulletin or revised part number. Documented means workshop data or multiple independent sources. Reported means owner consensus with no hard confirmation, and never sets a risk level on its own.

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