1.6 CRDi (D4FB)
2017–2022 · diesel · 1582cc · 136hp
Engine codes: D4FB, D4FE
Reliability, common problems and owner reviews for the Hyundai i30 III 1.6 CRDi (D4FB). Check this before you buy used.
The 1.6 CRDi (D4FB — the well-proven U-line Hyundai/Kia diesel shared across the Ceed/Kona/i40/Sportage) is the high-mileage i30 III choice: refined, genuinely economical and dependable. Standard modern-diesel cautions: DPF clogging on short trips, EGR sooting, injector and turbo attention at high mileage, and AdBlue/SCR on later cars. It's a sound engine that mostly suffers only from short urban-only use that never lets the DPF regen. For a motorway commuter it's a low-thirst long-hauler — buy on oil, DPF and injector history.
Same engine, other cars
This is the same physical engine (D4FB) sold under different names across brands. Reliability is broadly shared — cross-check these:
- Kia Ceed— 1.6 CRDi diesel (D4FB)115hp
- Hyundai i30— 1.6 CRDi diesel (D4FB)115hp
- Hyundai Kona— 1.6 CRDi (U-line diesel)136hp
- Hyundai Tucson NX4— 1.6 CRDi (D4FE, mild-hybrid)136hp
- Kia Venga— 1.4 / 1.6 CRDi (U-line diesel)115hp
- Kia Ceed III— 1.6 CRDi (D4FB / D4FE)136hp
- Kia Soul— 1.6 CRDi (U-line, D4FB)128hp
- Kia Sportage V— 1.6 CRDi (D4FE, mild-hybrid)136hp
- Hyundai Elantra— 1.6 CRDi (U-line, D4FB)128hp
Known Issues
DPF clogs and EGR soots on urban use; AdBlue/SCR on later cars.
Fix / Workaround: Motorway regens; clean EGR; diagnose SCR.
Repair cost: €250–€1000
Typically appears after: 140,000 km
Injector and turbo attention at higher mileage.
Fix / Workaround: Injector test; check turbo.
Repair cost: €200–€1200
Typically appears after: 170,000 km
Mileage Thresholds
After 200,000 km: Economical long-hauler with care.
Pre-Purchase Checklist
- ☐Best for motorway miles
- ☐Same D4FB as Ceed / Kona / i40
- ☐Oil + DPF history
Frequently asked questions
Is the Hyundai i30 III 1.6 CRDi (D4FB) reliable?
Maint. Sensitive — The 1.6 CRDi (D4FB — the well-proven U-line Hyundai/Kia diesel shared across the Ceed/Kona/i40/Sportage) is the high-mileage i30 III choice: refined, genuinely economical and dependable. Standard modern-diesel cautions: DPF clogging on short trips, EGR sooting, injector and turbo attention at high mileage, and AdBlue/SCR on later cars. It's a sound engine that mostly suffers only from short urban-only use that never lets the DPF regen. For a motorway commuter it's a low-thirst long-hauler — buy on oil, DPF and injector history.
What are the common problems and reviews for the Hyundai i30 III 1.6 CRDi (D4FB)?
The most commonly reported problems: DPF / EGR (short trips), Injector / turbo (high miles).
Is a used Hyundai i30 III 1.6 CRDi (D4FB) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.