Most 2020 Experts use PSA's BlueHDi diesels which commonly use DPF and SCR (AdBlue) systems — those components are fine when the van is used on sustained runs but can give trouble with constant short trips. The Expert is sold in different lengths and roof heights (L1/L2/L3 and H1/H2 variants) and payloads typically sit around 1,000–1,400 kg depending on spec; commercial insurance and DOE history are a separate consideration in Ireland. The manual gearbox is robust but expect clutch wear on high-usage vans and keep an eye on sliding-door rollers and cargo-floor wear from previous fit-outs.

• DPF/EGR behaviour: look for frequent regen events, dashboard DPF warnings or black smoke after cold starts (short-trip vans suffer most).
• AdBlue system: check filling cap, tank for leaks and any warning messages for dosing pump/sensor faults.
• Clutch and gearbox: test for slipping, heavy bite point or crunching when cold—manual vans often need clutch replacement on high-mileage units.
• Load-area condition and signs of overload: inspect cargo floor, racking fixings, rear door hinges and look for sagging rear suspension or worn shocks.
• DOE history and usage pattern: verify commercial DOE records and ask whether the van did mainly short urban runs or longer motorway work.