The 2022 Kona N uses Hyundai's Theta II 2.0T engine (276 hp variant), notorious for catastrophic bearing failures even at low mileage. This is a high-performance hot hatch with serious powertrain longevity concerns inherited from the wider Theta II recall saga.
Catastrophic Engine Bearing Failure (Theta II)
Occasional · high severityTypical onset: 20,000-60,000 mi
Symptoms: Metallic knocking or ticking from engine bay, especially cold starts, Oil pressure warning light or low oil pressure readings, Metal shavings in oil or on magnetic drain plug, Sudden loss of power, engine seizure without warning
Fix: Complete engine replacement or short-block swap. 18-24 labor hours. Hyundai has extended warranties on some VINs but coverage is inconsistent. Many failures occur just outside powertrain warranty window. Requires full teardown, machine work if rebuilding, or factory short-block.
Estimated cost: $8,000-15,000
Dual-Clutch Transmission Judder and Overheating
Common · medium severityTypical onset: 15,000-50,000 mi
Symptoms: Shuddering or vibration during low-speed acceleration (1st to 2nd gear), Harsh shifts or delayed engagement from stop, Transmission overheating warning on track or spirited driving, Burning smell from transmission tunnel after hard use
Fix: DCT clutch pack replacement or mechatronic unit reprogramming. Software updates help some cases. Track use accelerates wear dramatically. 8-12 labor hours for clutch replacement. Transmission fluid changes every 30k can extend life but won't cure existing judder.
Estimated cost: $3,500-6,500
High-Pressure Fuel Pump Failure
Occasional · high severitySymptoms: Hard starting or extended cranking, especially when hot, Sudden loss of power under acceleration or boost, Check engine light with low fuel pressure codes (P0087, P0088), Engine dies while driving, may restart after sitting
Fix: HPFP replacement, often part of NHTSA recall 23V-358. 3-4 labor hours. Located on engine requiring intake manifold removal. Use only OEM parts; aftermarket pumps fail faster. Hyundai updated control module software to reduce pump stress.
Estimated cost: $1,200-2,000
Turbocharger Wastegate Rattle
Common · low severityTypical onset: 10,000-40,000 mi
Symptoms: Metallic rattling from engine bay at idle or light throttle, Rattle disappears under boost or at higher RPM, No performance loss or check engine codes, Sound more pronounced when engine is hot
Fix: Internal wastegate actuator rod loose or worn. Hyundai TSB addresses this but fix is full turbo replacement (no serviceable wastegate). 6-8 labor hours. Many owners live with it as performance unaffected. Will eventually worsen and cause boost control issues.
Estimated cost: $2,200-3,500
Transmission Oil Cooler Line Leaks
Occasional · medium severityTypical onset: 30,000-70,000 mi
Symptoms: Transmission fluid puddles under vehicle (red or brown fluid), Low fluid level warnings or erratic shifting, Drips visible near radiator or along frame rail, Burnt fluid smell, especially after highway driving
Fix: Cooler line fittings crack or corrode where they meet radiator. Replace lines and top off fluid. 2-3 labor hours. Check for aluminum particles in old fluid indicating internal damage. If contaminated, full flush required.
Estimated cost: $600-1,200
Engine Mount Failure (Transmission Side)
Common · low severityTypical onset: 25,000-60,000 mi
Symptoms: Excessive vibration at idle in Drive, Clunking when shifting or accelerating hard, Visible engine movement when revving in Park, Driveline slop or jerking during throttle transitions
Fix: Passenger-side transmission mount tears due to high torque. Upgraded aftermarket mounts available but harsher NVH. OEM replacement 1.5-2 labor hours. Inspect all three mounts simultaneously; failures often cluster.
Estimated cost: $350-650
Buy only with transferable factory warranty or budget $10k for potential engine replacement; these are fantastic to drive but the Theta II is a ticking time bomb.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.