U 1.1 CRDi (D3FA) vs Kappa II / Smartstream 1.2 MPI-DPi (G4LF)
Side-by-side reliability comparison
Specifications
Character
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."
Kappa II / Smartstream 1.2 MPI-DPi (G4LF)
"The 1,197 cc four-cylinder petrol in the 2020+ i10, i20, Bayon, Picanto, Rio and Stonic. Non-turbo, chain-driven, simple. German used-car guides know of no engine problems so far; one engine guide warns the thin chain can stretch around 100,000 km. Some early-2024 cars were recalled for an EGR valve that can stall the engine. Slow but cheap to run. Not the older 1,248 cc G4LA."