Theta II 2.0T/2.4 GDI rod-bearing failure / seizure.
- Typically appears
- 70,000+ miles
- What to inspect
- Listen for engine knock and confirm any engine replacement or recall/warranty work.

The 3rd-gen Santa Fe is roomy value, but the Theta II GDI engine is the critical check.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
The most commonly reported faults on the 2013–2018 Hyundai Santa Fe are Theta II 2.0T/2.4 GDI rod-bearing failure / seizure, Oil consumption on GDI engines and Loss of four-wheel drive and clunking from the front differential due to stripped transfer box splines. Of the documented issues, 1 rated critical and 2 rated high · these are the ones worth inspecting first. Full inspection points, onset mileage and what to check are listed below.
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Build the inspection planBased on the documented faults on this page for the Hyundai Santa Fe.
Guidance only · reflects reported patterns, not a specific car's condition.
Which faults an average example has usually reached depends on its age. Pick a model year for the faults that matter on that build.
Theta II 2.0T/2.4 GDI rod-bearing failure / seizure.
Oil consumption on GDI engines.
Turn these known faults into a step-by-step viewing plan for this exact Hyundai Santa Fe · $9.
Build the inspection planBrake wear and ABS faults.
Panoramic roof rattles / leaks.
Loss of four-wheel drive and clunking from the front differential due to stripped transfer box splines.
Rough idle, hesitation, and illuminated EML caused by a carbon-clogged EGR valve or cooler.
Clicking or clunking noise from the steering column due to a degraded rubber flexible coupling in the EPS motor.
Knocking noises from the rear and wandering at motorway speeds caused by worn rear trailing arm bushes.
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Build my inspection planValue-oriented, but the Theta II engine failure risk is significant — check history.
GDI rod bearings can fail and seize the engine; many were replaced under warranty.
Extended powertrain warranties applied to many affected engines; confirm coverage.
The 2.2-litre CRDi diesel engine fitted to UK Santa Fe models utilises a steel timing chain rather than a rubber timing belt. Under normal conditions, this chain is designed to last the lifetime of the engine and does not require routine replacement, provided the vehicle receives regular oil changes.
Yes, like most modern diesels, the 2.2 CRDi is prone to DPF blockages if the vehicle is used primarily for short, urban journeys where the exhaust cannot reach regeneration temperatures. Dealers should check the dipstick; a rising oil level indicates failed regeneration attempts causing diesel to dilute the engine oil.
Hyundai originally marketed the six-speed automatic transmission as sealed for life. However, UK master technicians strongly advise replacing the transmission fluid every 60,000 miles to prevent valve body wear and harsh shifting. If a forecourt vehicle exhibits jerky gear engagements from cold, degraded fluid is usually the primary culprit.
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.
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