Theta II 2.4 GDI (G4KJ) vs Smartstream 1.6T (G4FP)

Side-by-side reliability comparison

Higher reliability score
Smartstream 1.6T (G4FP) ACCEPTABLE 75/100
+50 points over Theta II 2.4 GDI (G4KJ)
0 / 100
AVOID Theta II 2.4 GDI (G4KJ) Hyundai/Kia
0 / 100
ACCEPTABLE Smartstream 1.6T (G4FP) Hyundai/Kia

Specifications

Theta II 2.4 GDI (G4KJ)
Smartstream 1.6T (G4FP)
Brand
Hyundai/Kia
Hyundai/Kia
Verdict
AVOID
ACCEPTABLE
Reliability
25
75
Years
2009--2020
2019--present
Displacement
2359 cc
1598 cc
Layout
I4
I4
Type
Petrol Na
Petrol Turbo
Power
188--201 hp
178--180 hp
Known Issues
2
0
Total Risk Cost
€5,000--€20,000
€0--€0

Character

Theta II 2.4 GDI (G4KJ)

"MASSIVE recall. Rod bearing failure, engine seizure, fire risk. Multiple class-actions. Worst modern engine disaster."

Smartstream 1.6T (G4FP)

"Gamma III architecture. Oil separator = less carbon. Improved over earlier 1.6T. Good daily."

Issues Comparison

Theta II 2.4 GDI (G4KJ) 2

◆ CRITICAL
Rod bearing failure — class-action, fire risk €5,000--€20,000 50,000 km--150,000 km
◆ CRITICAL
Recall compliance — verify before purchase €0--€0 0 km--∞

Smartstream 1.6T (G4FP) 0

No documented issues.

Models

Theta II 2.4 GDI (G4KJ) 2

Santa Fe 2.4 GDI DM 2012--2018 SUV Sorento 2.4 GDI UM 2014--2020 SUV

Smartstream 1.6T (G4FP) 20

Sportage NQ5 2022--present Tucson NX4 2021--present Sportage NQ5 2022--present Tucson NX4 2021--present Seltos SP2 2020--present Sorento MQ4 2020--present Sportage NQ5 2022--present Santa Fe TM 2021--2024 Sportage NQ5 2022--present Tucson NX4 2021--present Santa Fe MX5 2024--present Santa Fe TM 2021--2024 Santa Fe MX5 2024--present Sorento MQ4 2021--present Tucson NX4 2021--present Kona SX2 2023--present Pro Ceed CD 2019--2021 i30 PD 2017--present Ceed CD 2018--present XCeed CD 2019--2021
Full Theta II 2.4 GDI (G4KJ) Report Full Smartstream 1.6T (G4FP) Report