The 2020 Sportage diesel-hybrid is typically a 48V mild-hybrid CRDi paired with Kia's automatic gearbox (often a 7-speed DCT or conventional torque-converter depending on market). You get better real-world economy than a pure diesel, but it still uses diesel ancillaries — expect a DPF, EGR and possibly AdBlue, and the automatic gearbox will need its scheduled service. Mild-hybrid batteries are much smaller than full hybrid packs, so battery failures are less common, but check for hybrid-system warning history and recent software/recall updates.

• DPF condition and EGR carbon build-up — look for frequent DPF regeneration events in the trip computer if prior use was town driving
• AdBlue level/consumption and ensure injector/lines show no leaks (newer diesels use AdBlue)
• Automatic gearbox behaviour and service history — check for smooth shifts, no juddering or hesitation (if DCT, feel for low-speed snatch)
• Hybrid-system warnings and battery state-of-health report (even mild hybrids can log faults); check for any stored errors on a scan
• Turbo and oil-leak signs around the turbo/EGR area — worn turbo seals cause smoke and reduced performance