The 1.0 TCe & 1.0 SCe (H4B / H4D) engine was fitted to the Dacia Duster 3 (2024–now). In the EU that is 35.3 % of all new cars of this generation.
Versions: 1.0 101 hp, 1.0 91 hp, 1.0.
Engine faults ✓ Checked against sources (10/2026)
✓ The faults of this engine were checked against sources (10/2026). Each item has at least two independent sources or an official recall or parts-maker technical note.
Timing chain stretch or rattle (0.9 TCe H4Bt)
usually 100,000–180,000 km · Medium risk
engine codes: H4B, H4BT
Signs: Rattle for a few seconds on cold start, later camshaft/crankshaft correlation fault codes and engine light
Fix: Do not ignore the noise; measure chain stretch (live data or inspection) and replace chain, tensioner and guides; change oil more often than the long factory interval
€600–1,200
Coolant leak at plastic thermostat / water housing (0.9 TCe)
usually 50,000–150,000 km · Medium risk
engine codes: H4B, H4BT
Signs: Coolant level drops slowly, smell or traces of coolant, temperature warning; if missed the engine overheats
Fix: Check the coolant level regularly; replace the thermostat housing or water outlet with its seals; after any overheating check the head gasket
€150–400
Faults typical of this model
Underbody / subframe corrosion
usually 100,000–300,000 km · Wear part
Signs: Surface rust underneath, brake lines
Fix: Treat underbody; replace pipes
€100–600
Front suspension bushes / drop links
usually 60,000–160,000 km · Wear part
Signs: Knocking
Fix: Replace parts
€80–250
Gearboxes
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
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
Service plan for this engine
Typical routine maintenance cost for 100,000 km: €2,200–4,950. Sum of the services and wear parts in the plan above (about 15,000 km a year, independent workshop), without faults.
Intervals and typical prices for the Dacia Duster 3 with the 1.0 TCe & 1.0 SCe (H4B / H4D) engine. The app gives the exact plan for your mileage.
Versions of this engine in the Dacia Duster 3
Source: European Environment Agency (EEA), monitoring of CO₂ emissions from new passenger cars, CC BY 4.0. CO₂ and fuel use are official type-approval values (WLTP from 2021), not real-world consumption.
Official recalls
Recalls the manufacturer published in the United Kingdom for this model (1). 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.
- Brakes / ABS / ESP Risk of parking brake actuator failing09/09/2025 · R/2025/378
Common questions
Does the Dacia Duster 3 1.0 TCe & 1.0 SCe (H4B / H4D) have a timing belt or a chain?
Chain.
Which oil does the Dacia Duster 3 1.0 TCe & 1.0 SCe (H4B / H4D) need?
5W-30 / 5W-40 · Renault RN0700 / RN17 · ~4.1 L · every 15,000 km.
Sources and notes
Main sources for the faults of this engine:
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. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). 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. How we check the data →
Updated 29/10/2026