1.6 CRDi diesel (D4FB)
2007–2017 · diesel · 1582cc · 115hp
Engine codes: D4FB, D4FC
Reliability, common problems and owner reviews for the Hyundai i30 1.6 CRDi diesel (D4FB). Check this before you buy used.
The CRDi diesels (1.4/1.6 U-line, the 1.6 shared with the i30/Ceed) are economical and generally sturdy, but as modern common-rail units they bring the usual cautions: DPF clogging on short trips, EGR sooting and injector wear. Worth it mainly for high-mileage drivers; for typical short-trip family use the petrols are the lower-worry choice. A documented car with good DPF history is dependable and frugal.
Same engine, other cars
This is the same physical engine (D4FB) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
Chain stretches; cold-start clacking is the warning. Ignored it can skip and damage valves.
Fix / Workaround: Quality oil on time (tensioner runs on oil pressure); replace chain at first clack.
Repair cost: €500–€1100
Typically appears after: 80,000 km
DPF blocks on short urban trips.
Fix / Workaround: Motorway runs; clean/replace.
Repair cost: €200–€900
DPF clogs and EGR soots on urban use.
Fix / Workaround: Motorway regens; clean/replace EGR + DPF.
Repair cost: €250–€1000
Typically appears after: 120,000 km
Injectors wear with mileage.
Fix / Workaround: Injector test; recon/replace.
Repair cost: €200–€800
Typically appears after: 150,000 km
Mileage Thresholds
After 80,000 km: Timing chain wear window.
After 150,000 km: DPF + injector window.
Pre-Purchase Checklist
- ☐Cold-start clack check (timing chain)
- ☐Confirm quality-oil service history
- ☐DPF history; petrol better for city use
- ☐Cold-start clack check (chain)
- ☐Quality-oil history
- ☐DPF history; prefer motorway use
- ☐Oil + DPF history
- ☐1.6 CRDi shared with i30/Ceed
- ☐Petrols lower-worry for short trips
Frequently asked questions
Is the Hyundai i30 1.6 CRDi diesel (D4FB) reliable?
Maint. Sensitive — The CRDi diesels (1.4/1.6 U-line, the 1.6 shared with the i30/Ceed) are economical and generally sturdy, but as modern common-rail units they bring the usual cautions: DPF clogging on short trips, EGR sooting and injector wear. Worth it mainly for high-mileage drivers; for typical short-trip family use the petrols are the lower-worry choice. A documented car with good DPF history is dependable and frugal.
What are the common problems and reviews for the Hyundai i30 1.6 CRDi diesel (D4FB)?
The most commonly reported problems: Timing chain wear (80–120k km), DPF clogging, DPF / EGR (short trips), Injector wear.
Is a used Hyundai i30 1.6 CRDi diesel (D4FB) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.