Theta II 2.0 (G4KD) vs Smartstream 1.6 CRDi (D4FE)

Side-by-side reliability comparison

Higher reliability score
Smartstream 1.6 CRDi (D4FE) ACCEPTABLE 74/100
+26 points over Theta II 2.0 (G4KD)
0 / 100
CAUTION Theta II 2.0 (G4KD) Hyundai/Kia
0 / 100
ACCEPTABLE Smartstream 1.6 CRDi (D4FE) Hyundai/Kia

Specifications

Theta II 2.0 (G4KD)
Smartstream 1.6 CRDi (D4FE)
Brand
Hyundai/Kia
Hyundai/Kia
Verdict
CAUTION
ACCEPTABLE
Reliability
48
74
Years
2008--2018
2018--present
Displacement
1998 cc
1598 cc
Layout
I4
I4
Type
Petrol Na
Diesel
Power
163--165 hp
115--136 hp
Known Issues
2
2
Total Risk Cost
€0--€10,000
€700--€1,500

Character

Theta II 2.0 (G4KD)

"ix35/Sportage SL. Part of Theta II recall campaign — connecting rod bearing failure, engine seizure. NHTSA massive complaint volume. Check recall status before buying. Post-recall engines improved."

Smartstream 1.6 CRDi (D4FE)

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

Issues Comparison

Theta II 2.0 (G4KD) 2

◆ CRITICAL
Oil consumption leading to seizure €0--€5,000 40,000 km--120,000 km
◆ CRITICAL
Connecting rod bearing failure (recall) €0--€5,000 50,000 km--150,000 km

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 2.0 (G4KD) 0

No models listed.

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 2.0 (G4KD) Report Full Smartstream 1.6 CRDi (D4FE) Report