Theta II 2.0 (G4KD)
Hyundai/Kia · Theta II 2.0 NA
2008–2018
"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."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
Oil consumption leading to seizure
▸Low oil warnings, knock
Part of the recall campaign — manufacturing debris in oil passages.
Κατανάλωση λαδιού → μπλοκάρισμα. ΚΡΙΣΙΜΟ.
Connecting rod bearing failure (recall)
▸Metallic knock, seizure, fire risk
NHTSA massive recall. Engine can seize and cause fire. Check recall status.
ΑΝΑΚΛΗΣΗ: Ρουλεμάν μπιελών. ΕΛΕΓΞΤΕ αν έγινε η ανάκληση πριν αγοράσετε.
Other Hyundai/Kia Engines
Gamma 1.6 MPI (G4FC)
1.6L NA I4
View details → Compare: Theta II 2.0 (G4KD) vs Gamma 1.6 MPI (G4FC)Gamma 1.4 MPI (G4FA)
1.4L NA I4
View details → Compare: Theta II 2.0 (G4KD) vs Gamma 1.4 MPI (G4FA)U/U2 1.6 CRDi (D4FB)
1.6L Diesel I4
View details → Compare: Theta II 2.0 (G4KD) vs U/U2 1.6 CRDi (D4FB)G6DH 3.5 V6
G6DH 3.5 V6 Lambda III
View details → Compare: Theta II 2.0 (G4KD) vs G6DH 3.5 V6Tuning Potential
Minimal
Frequently Asked Questions
Is the Hyundai/Kia Theta II 2.0 (G4KD) reliable?
The Hyundai/Kia Theta II 2.0 (G4KD) scores 48/100 with a verdict of CAUTION. It has 2 documented issues with total repair costs between €0 and €10,000.
What are the common problems with the Theta II 2.0 (G4KD)?
The most common issues are:
- Oil consumption leading to seizure — critical, repair cost €0–€5,000, 40,000 km–120,000 km
- Connecting rod bearing failure (recall) — critical, repair cost €0–€5,000, 50,000 km–150,000 km
How much does it cost to repair the Theta II 2.0 (G4KD)?
Total potential repair costs for all 2 known issues range from €0 to €10,000. The most expensive issue is typically .
What years was the Theta II 2.0 (G4KD) produced?
The Hyundai/Kia Theta II 2.0 (G4KD) was produced from 2008 to 2018. It is a 1998cc I4 petrol na engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.