2.4 GDI engine failure / bearing knock.
- Typically appears
- 70,000+ miles
- What to inspect
- Listen for knock and confirm engine recall/warranty history.

The 4th-gen Sportage is a strong-value crossover; GDI engine health and oil consumption are the priorities.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
The most commonly reported faults on the 2017–2022 Kia Sportage are 2.4 GDI engine failure / bearing knock, Oil consumption on GDI engines and DPF blockage and rising engine oil levels on CRDi models. 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 Kia Sportage.
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.
2.4 GDI engine failure / bearing knock.
Oil consumption on GDI engines.
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Build the inspection plan1.6T dual-clutch hesitation.
Infotainment and camera glitches.
Clunking or clicking noise when turning the wheel
DPF blockage and rising engine oil levels on CRDi models
Knocking from the rear over bumps and uneven tyre wear
Air conditioning fails to blow cold air
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Build my inspection planGood value but check GDI engine history and oil consumption.
The 2.4 GDI needs history checks; the 1.6T is livelier but has the dual-clutch.
Engine and ABS-related campaigns exist; confirm completion.
The 1.7 CRDi and 2.0 CRDi engines use a timing chain rather than a belt, which is designed to last the lifetime of the engine. However, the auxiliary drive belts require inspection every 20,000 miles or 24 months, and replacement if cracking or fraying is present to prevent alternator or water pump failure.
Yes, AWD models can suffer from transfer box or rear differential issues, often caused by mismatched tyre tread depths across the axles. This stresses the centre coupling. Always ensure all four tyres are of the same brand and have similar tread wear. A whining noise from the rear indicates differential bearing wear.
Introduced later in the QL's lifecycle, the 1.6 CRDi 48V mild-hybrid system relies on a battery located under the boot floor. Dealers should check the dashboard for any hybrid system warning lights and ensure the stop-start system engages seamlessly. Replacing a degraded 48V battery is highly expensive, so verify its health during diagnostics.
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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