D4FB Diesel Injectors
Compatible with Hyundai i30 (FD/GD), Hyundai ix35, Kia Cee'd (ED/JD), and 1 more
- OEM Tested & Calibrated
- 12-Month Warranty
- Free UK Delivery
Select the correct injector for your D4FB engine below
Fits Hyundai i30 (FD/GD), Hyundai ix35, Kia Cee'd (ED/JD), Kia Sportage (SL) and more
Top injectors for D4FB
Compatible Injectors for D4FB
- OEM Tested
- 12-Month Warranty
- Free UK Delivery
Common problems solved by these injectors
About the D4FB engine
The D4FB is a 1.6l crdi common rail diesel engine. This engine uses Bosch diesel injectors.
How Diesel Injectors Are Remanufactured
Watch our 3D walkthrough of the diesel injector remanufacturing process and see how injectors are professionally restored for reliable service.
Vehicles Using D4FB Engine
| Vehicle | Engine | Years |
|---|---|---|
| Hyundai i30 (FD/GD) injector | 1.6 CRDi | 2007–2015 |
| Hyundai ix35 injector | 1.6 CRDi | 2010–2015 |
| Kia Cee'd (ED/JD) injector | 1.6 CRDi | 2007–2018 |
| Kia Sportage (SL) injector | 1.6 CRDi | 2010–2015 |
Common D4FB Injector Problems
Rough idle and engine vibration
Worn injector nozzles cause uneven fuel spray, leading to rough idle at low RPM. Most noticeable when the engine is cold.
Excessive exhaust smoke
Black or blue-grey smoke on acceleration indicates poor fuel atomisation. This is often caused by carbon buildup on the injector nozzle tip.
Poor fuel economy
A worn or leaking injector delivers incorrect fuel quantities, reducing efficiency by 10–20% in severe cases.
Engine misfire under load
Intermittent misfires during acceleration suggest one or more injectors are failing to deliver the correct fuel pressure.
Difficult cold starting
Degraded injector nozzles struggle to atomise fuel at lower cranking pressures, causing extended crank times in cold weather.
Loss of power
Gradual power loss across the rev range, particularly above 2500 RPM, can indicate injector flow rate degradation.
Increased diesel knock
Louder than normal combustion noise, especially at idle, can indicate incorrect injection timing due to worn injector internals.
D4FB Technical Specifications
Displacement
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Power
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Torque
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Fuel System
Common Rail Direct Injection
The D4FB is a 1.6l crdi common rail diesel engine. This engine uses Bosch diesel injectors.
Engine Intelligence
Hyundai / Kia 1.6 CRDi (D4FB — i30, ix35, Cee'd, Sportage)
Documented failure modes
- Injector correction values drifting to their compensation limit
- Injector coding loss after previous work — rough running and knock without a clear stored fault
- Injector back-leak beyond specification affecting rail pressure
Diagnostic guidance
- Verify injector coding first — lost or wrong codes cause knock and rough running with no stored fault on this engine
- Read injection correction values: a unit at its compensation limit identifies the failing injector
- DPF, EGR and fuel-supply restrictions mimic injector faults on the 1.6 CRDi — rule them out before replacing hardware
- Register the new injector code after fitting per the manufacturer procedure
Fitment note: The D4FB ran across many model years and outputs with different Bosch references — always match the reference etched on the injector body, not just the engine code.
Related D4FB Engine Guides
Related Pages
Bosch 1.6L CRDi — browse compatible engines, vehicles, and injectors
Compatible Engines
Compatible Vehicles
Recommended Injector
0445110320
Bosch — View product page