Tucson NX4
1 generation · Select a generation to see engines
Which Hyundai Tucson NX4 engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Hyundai Tucson NX4 engine is the most reliable?
1.6 CRDi (D4FE, mild-hybrid) — Maint. Sensitive verdict. The 1.6 CRDi (D4FE, with 48V mild-hybrid — the well-proven U-line diesel shared across the i30/Kona/Sportage/Ceed) is the high-mileage Tucson choice: refined, genuinely economical and dependable. Standard modern-diesel cautions: DPF clogging on short trips, EGR sooting, injector and turbo attention at high mileage, AdBlue/SCR, and the 48V starter-generator to keep healthy. It's a sound engine that mostly suffers only from short urban-only use that never lets the DPF regen. For a motorway commuter it's a low-thirst long-hauler — buy on oil, DPF and AdBlue history.
Which Hyundai Tucson NX4 engines should you avoid?
None of the Hyundai Tucson NX4 engines listed are rated "Problematic" or "Avoid" — but always check the service history before buying.
What are the most common Hyundai Tucson NX4 problems?
The most commonly reported problems across all Hyundai Tucson NX4 generations and engines: DPF / EGR / AdBlue, Injector / turbo / 48V, Intake carbon (GDI) / turbo, 7-DCT / hybrid system.