Theta II 2.4 (G4KJ) vs Smartstream 1.6 CRDi (D4FE)

Side-by-side reliability comparison

Higher reliability score
Smartstream 1.6 CRDi (D4FE) ACCEPTABLE 74/100
+36 points over Theta II 2.4 (G4KJ)
0 / 100
AVOID Theta II 2.4 (G4KJ) Hyundai/Kia
0 / 100
ACCEPTABLE Smartstream 1.6 CRDi (D4FE) Hyundai/Kia

Specifications

Theta II 2.4 (G4KJ)
Smartstream 1.6 CRDi (D4FE)
Brand
Hyundai/Kia
Hyundai/Kia
Verdict
AVOID
ACCEPTABLE
Reliability
38
74
Years
2009--2020
2018--present
Displacement
2359 cc
1598 cc
Layout
I4
I4
Type
Petrol Na
Diesel
Power
188--201 hp
115--136 hp
Known Issues
0
2
Total Risk Cost
€0--€0
€700--€1,500

Character

Theta II 2.4 (G4KJ)

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

Smartstream 1.6 CRDi (D4FE)

"Updated CRDi diesel with improved emissions. Tucson/Sportage. Reliable with standard diesel maintenance."

Issues Comparison

Theta II 2.4 (G4KJ) 0

No documented issues.

Smartstream 1.6 CRDi (D4FE) 2

○ MINOR
Carbon buildup (GDI) €300--€600 60,000 km--120,000 km
○ MINOR
Timing chain — early data building €400--€900 100,000 km--160,000 km

Models

Theta II 2.4 (G4KJ) 8

Optima TF 2012--2015 Cerato TD 2009--2013 Sportage SL 2010--2015 Sorento XM 2010--2015 Santa Fe CM 2006--2012 Santa Fe DM 2013--2018 Sorento UM 2015--2020 Santa Fe TM 2019--2024

Smartstream 1.6 CRDi (D4FE) 10

Ceed 1.4 T-GDI CD 2018--2024 Hatchback Ceed 1.5 T-GDI CD LCI 2021--2024 Hatchback ProCeed 1.5 T-GDI CD 2018--2024 Wagon Sportage 1.6 T-GDI QL 2015--2021 SUV Sportage 1.6 T-GDI NQ5 2021--2024 SUV Tucson 1.6 T-GDI TL 2015--2020 SUV Tucson 1.6 T-GDI NX4 2020--2024 SUV Xceed 1.5 T-GDI CD 2019--2024 SUV i30 1.4 T-GDI PD 2017--2024 Hatchback i30 1.5 T-GDI PD LCI 2020--2024 Hatchback
Full Theta II 2.4 (G4KJ) Report Full Smartstream 1.6 CRDi (D4FE) Report