Nu 2.0 GDI (G4NC) vs U 1.1 CRDi (D3FA)
Side-by-side reliability comparison
Specifications
Character
Nu 2.0 GDI (G4NC)
"Direct-injection 2.0 used mainly outside Western Europe (Tucson, Sportage, i40, Elantra, Soul). Its known fault is connecting-rod bearing wear: Hyundai and Kia recalled US cars, added knock-sensor monitoring software and a 15-year engine warranty there, and at least 45 Tucsons caught fire. European guides rate the i40 2.0 GDI as durable. Buy only with service history; a knock or the oil light means stop driving."
U 1.1 CRDi (D3FA)
"Three-cylinder 1.1 CRDi diesel (2005-2019) from the Hyundai/Kia U family, used in the Kia Picanto, Hyundai i10 and i20 and Kia Rio. 75 hp, Bosch common rail, very low fuel use. No widespread serious fault is documented; the main costs come from soot clogging the EGR valve and intake swirl flaps in town driving, and early engines can push oil into the intake through the crankcase breather. Owners report 290,000 km and more. Evidence is limited, so the score is capped."