Carbon build-up on intake valves (direct injection)
usually 90,000–180,000 km · Medium risk
Signs: Rough idle, misfire when cold
Fix: Clean the intake valves (walnut blasting)
€300–700
Common faults, service intervals and costs
Hyundai Tucson (NX4)
2020–now
3
engines covered
9
known faults
36,332
roadworthiness tests in the statistics
10
official recalls
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Hyundai Tucson (NX4) has been built since 2020.
For this generation we cover 3 engines and 9 known faults, each with the mileage range where it usually appears.
The most expensive known risk is Turbocharger: it usually appears at 180,000–260,000 km and costs €700–1,800 to fix.
In UK roadworthiness tests in 2024, at 0–50 thousand km this model most often failed on: lights, wipers and visibility (7.3 %), tyres and wheels (3.0 %), brakes (0.9 %). It fails more often than an average car of the same age and mileage on: lights, wipers and visibility, exhaust, emissions and leaks. It fails less often than average on: tyres and wheels.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 1.6 T-GDi (Hyundai-Kia Gamma turbo) | Petrol | Chain | 5W-30 · ACEA C2 / C5 (API SN) · every 15,000 km |
| 1.1 / 1.4 / 1.6 / 1.7 CRDi (Hyundai-Kia U2) | Diesel | Chain | 5W-30 · ACEA C3 · ~5.3 L · every 15,000 km |
| 1.6 CRDi (Hyundai-Kia U3 / Smartstream, 2018+) | Diesel | Belt · interval per the service book | 0W-30 / 5W-30 · ACEA C2 / C3 · every 15,000 km |
Faults by engine
1.6 T-GDi (Hyundai-Kia Gamma turbo)
Turbo oil feed / wastegate
usually 90,000–180,000 km · Medium risk
Signs: Whistle, loss of boost
Fix: Service or replace the turbo
€500–1,500
1.1 / 1.4 / 1.6 / 1.7 CRDi (Hyundai-Kia U2)
DPF / EGR
usually 120,000–200,000 km · Medium risk
Signs: DPF light
Fix: Clean or replace
€300–1,500
1.6 CRDi (Hyundai-Kia U3 / Smartstream, 2018+)
DPF / EGR clogging
usually 120,000–200,000 km · Medium risk
Signs: DPF light, limp mode
Fix: Clean or replace
€300–1,500
Injectors
usually 180,000–250,000 km · Medium risk
Signs: Smoke, rough idle
Fix: Test and replace
€600–1,500
Turbocharger
usually 180,000–260,000 km · Medium risk
Signs: Whistle, smoke, loss of power
Fix: Rebuild or replace
€700–1,800
Gearboxes
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
7DCT (7-speed, dry clutch)
7DCT clutch judder / overheating
usually 40,000–150,000 km · Medium risk
Signs: Shudder in traffic, 'transmission overheating' message
Fix: Software update, clutch replacement
€600–1,800
Automatic (torque converter)
Torque converter / valve body
usually 150,000–250,000 km · Wear part
Signs: Delayed or harsh shifts
Fix: Fluid service, repair
€300–2,500
Scheduled service
Intervals and typical prices for the 1.6 T-GDi (Hyundai-Kia Gamma turbo) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| Manual gearbox oilTransmission | every 150,000 km | €60–130 |
| Front brake padsBrakes | usually at 30,000–60,000 km | €60–150 |
| Front brake discs + padsBrakes | usually at 60,000–120,000 km | €150–320 |
| Rear brake padsBrakes | usually at 50,000–90,000 km | €50–130 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Roadworthiness tests by mileage
Share of tests in the United Kingdom (DVSA MOT, 2024) that this model failed because of each system. Bold red means more often and green less often than an average car of the same age and mileage. Sample: 36,332 tests.
| thousand km | 0–50 | 50–100 | 100–150 |
|---|---|---|---|
| Brakes | 0.9 % | 3.6 % | 4.1 % |
| Suspension | 0.4 % | 0.9 % | 0.7 % |
| Steering | 0.3 % | 1.0 % | 0.9 % |
| Tyres and wheels | 3.0 % | 5.3 % | 5.7 % |
| Lights, wipers and visibility | 7.3 % | 7.3 % | 6.6 % |
| Body and corrosion | 0.3 % | 0.3 % | 1.1 % |
| Exhaust, emissions and leaks | 0.7 % | 0.9 % | 1.1 % |
Owner complaints in the US
Which systems owners reported to the US agency NHTSA and at what mileage. Complaints are not confirmed faults and some relate to recalls. Sample: 157 complaints.
Official recalls
Recalls the manufacturer published in the United Kingdom for this model (10). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
- Visibility Some vehicles may have an instrument cluster operational concern whilst driving the vehicle02/04/2026 · R/2026/147
- Brakes / ABS / ESP The subject vehicles may experience a loss of brake assistance and brake performance may e reduced. The foot brake will still operate but in a manner of a vehicle without a functioning brake booster (less assistance)20/01/2025 · R/2024/489
- Airbag The side curtain airbag could potentially be assembled in a twisted condition.18/03/2024 · R/2024/036
- Doors / locks / lids Certain Tucson vehicles equipped with rear door power windows may experience a malfunction of the anti-pinch function during its operation.07/08/2023 · R/2023/184
- Electronics / software The vehicle immobiliser may not function correctly due to incorrect vehicle software06/03/2023 · R/2023/039
- Brakes / ABS / ESP Potential manufacturing defect within the component of the right hand rear caliper20/12/2021 · R/2021/414
- Other Vehicles equipped with smart key system may have an immobiliser malfunction13/09/2021 · R/2021/295
- Airbag The side curtain airbag could potentially be assembled in a twisted condition12/07/2021 · R/2021/220
The other recalls (2) are listed in the app.
Other generations
Sources and notes
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 07/10/2026