Nu 2.0 GDI (G4NC) vs G6BA 2.7 V6
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."
G6BA 2.7 V6
"Simple naturally aspirated 2.7 V6 of the first Tucson, Sportage and Santa Fe. German guides call it basically reliable and US examples have passed 400,000 km. The one thing that matters is the timing belt: it is an interference engine, the hydraulic tensioner can wreck the belt early, and a broken belt bends the valves. Change belt, tensioner and pulleys on time (every 60,000-90,000 km) and check the crankshaft pulley. Very thirsty, especially with AWD."