H4M 145 Dacia H4M 145
14
Brand engines
2
Modifications
Technical Specifications
| Engine Displacement | 1.6 L (1,598 cc) |
| Configuration | Inline-4 |
| Number of Cylinders | 4 |
| Valves per Cylinder | 4 |
| Power | 145 л.с. |
| Torque | 205 Н*м |
| Cylinder Bore | 80.00 mm |
| Piston Stroke | 79.50 mm |
| Compression Ratio | 10.5:1 |
| Firing Order | 1-3-4-2 |
| Fuel System | Multi-point Fuel Injection |
| Aspiration | Naturally Aspirated |
| Intercooler | No |
| Maximum RPM | 6,000 rpm |
| Max Torque RPM | 4,000 rpm |
| Valve Train | DOHC |
| Timing Drive | Chain |
| Timing Chain Replacement | 150000 or as needed |
| Block Material | Aluminum |
| Head Material | Aluminum |
| Engine Weight | 130 kg |
| Dimensions (L×W×H) | 600 × 500 × 700 mm |
| Lubrication System | Pressure lubrication |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | Renault H engine family |
| Manufacturing Plant | Flins, France |
Maintenance
| Engine Oil Capacity | 5 L (with filter: 5.5 L) |
| Recommended Viscosity | 5W-30 |
| Oil Standard | ACEA A3/B4 |
| Recommended Brands | Total Quartz, Castrol Edge, Mobil 1 |
| Oil Change Interval | 15 000 km or 12 mo |
| Oil Filter | 152080080R |
| Air Filter |
165460078R
Replace every 60 000 km |
| Spark Plugs |
Type: Iridium Part number: 8200773093Gap: 1 mm Quantity: 4 pcs Replace every 60 000 km |
| Coolant Capacity | 7 L |
| Coolant Type | G12 (Renault Coolant) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 88°C |
| Operating Temperature | 90°C |
| Max Operating Temperature | 120°C |
| Critical Temperature | 130°C |
| Annual Maintenance Cost | 500-800 USD |
Reliability
Expected lifespan: 250 000 km
Common problems
| Problem | Severity | Mileage | Repair cost |
|---|---|---|---|
| Oil consumption issues | Medium | 100000-150000 km | $300-500 |
| Timing chain noise | Medium | 150000-200000 km | $400-600 |
Known defects
- Oil leaks from the valve cover
- Injector failures in early models
Warranty extensions
- Dacia offers extended warranty options for engine issues up to 5 years/100000 km
Tuning potential
Tuning potential: Medium | Max. safe power: 220 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 160 hp | 220 Nm |
ECU remap only Reliability impact: Minimal |
$400 |
| Stage 2 | 180 hp | 250 Nm |
- Required: High-flow air filter, ECU remap Reliability impact: Low |
$1200 |
| Stage 3 | 200 hp | 270 Nm |
- Required: Turbocharger upgrade, ECU remap Reliability impact: Medium |
$3000 |
Popular modifications
- ECU tuning
- Cold air intake
- High-performance exhaust
Tuning limitations
- Stock internals limit power upgrades
- Cooling system may need upgrades for high power
Cars with the H4M 145 engine
This engine was fitted to 1 model
| Photo | Brand | Model | Generation | Production years |
|---|---|---|---|---|
|
No photo
|
Dacia | Bigster | Bigster | 2025 - present |
All modifications (2)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| Dacia Bigster | Bigster | 1.6 E-Tech 145 л.с. 1-ступеневий автомат 2WD | 145 hp | 1-ступеневий автомат | 2WD |
| Dacia Bigster | Bigster | 1.6 E-Tech 145 л.с. 1-ступеневий автомат 4x4 | 145 hp | 1-ступеневий автомат | 4x4 |
Interesting Facts
- The H4M engine is known for its reliability and fuel efficiency.
- It is used in multiple Dacia models, making it a versatile choice.
Applications
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| Dacia Duster | 2nd | 2015-present | 145hp | Europe, South America |
| Dacia Logan | 3rd | 2015-present | 145hp | Europe, South America |
Compatible transmissions: 6-speed Manual, CVT
Drive types: FWD, AWD
Fuel Economy
| Fuel Type | Petrol 95 |
| Octane Rating | Minimum: 95 | Recommended: 95 |
| Consumption (City) | 8 L/100km |
| Consumption (Highway) | 5.5 L/100km |
| Consumption (Combined) | 6.5 L/100km |
| Real Consumption | 7 L/100km |
| Fuel Tank Capacity | 50 L |
| Range | 769 km |
| Cost per 100 km | 10-12 USD |
Emissions Standards
| Emission Standard | Euro 6 |
| CO₂ Emissions | 150 g/km |
| Particulate Filter (DPF) | Absent |
| AdBlue | Not Required |
Comparison with competitors
| Engine | Brand | Displacement | Power | Torque |
|---|---|---|---|---|
| 1.6L I4 | Ford | 1,596 cc | 125 hp | 150 Nm |
| K4M | Renault | 1,598 cc | 110 hp | 145 Nm |
Pros
- Higher power output compared to competitors in the same class.
- Good balance of performance and fuel economy.
Cons
- Some reports of oil consumption issues.
- Less refined than some competitors.