D7F-726 engine — Renault 1.1 (1.1L)
1.1L · 58 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | D7F 726 |
| Capacity | 1149 cc |
| Idle speed | 740 ± 50 rpm |
| Inlet | 0.10 mm |
| Exhaust | 0.20 mm |
| Minimum | 12.0 bar |
| Oil pressure | 0.8 / 750 3.5 / 4000 bar/rpm |
| Engine code | D7F-726 |
Engine (petrol)
| Fuel system (make and type) | Siemens Sirius 32 |
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Ignition coil resistance, primary | 0.5 ± 0.025 ohms |
| Ignition coil resistance, secondary | 11000 ± 1650 ohms |
| Spark plugs (make and type) | Eyquim RFC58LZP, RCF50LZ2E |
| Spark plug gap | 0.85 - 0.95 mm |
| Fuel pump pressure | 3.5 ± 0.06 bar |
| Injection pressure/system pressure | 3.0 ± 0.2 bar |
| Oil temperature during test | 80 °C |
| CO exhaust gas | < 0.5 % |
| CO2 | 14.5 % |
| HC | 100 ppm |
| Lambda | 0.97 - 1.03 |
| Fast-idle speed | 2000 rpm |
| CO at fast-idle speed | < 0.3 % |
| Firing order | 1 - 3 - 4 - 2 |
| Ignition coil resistance, primary | 0.6 - 1.5 ohms |
| Ignition coil resistance, secondary | 8000 ohms |
| Spark plugs (make and type) | Eyquem RCFC58LZP |
| Injection pressure/system pressure | 3.5 ± 0.06 bar |
| CO2 | > 14.5 % |
| HC | < 100 ppm |
| O2 | 0.1 - 0.5 % |
| Lambda change (Delta Lambda) | 0.03 |
| Fast-idle speed | 2500 rpm |
Cooling system
| Cap pressure | 1.4 bar |
| Thermostat opens at | 89 °C |
| Thermostat fully open at | 99 ± 2 °C |
| Cap pressure | 1.2 bar |
Electrical
| Alternator | 75 A |
| Battery | 40 Ah |
Capacities
| Engine sump, incl. filter | 4.0 l |
| Manual transmission | JB1 |
| Gearbox refill | 3.4 l |
| Cooling system | 5.0 l |
| Air-conditioner refrigerant | 660 ± 35 g |
| Air-conditioner compressor oil | 135 ± 15 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 20 Nm |
| Cylinder head bolts — Stage 2 | 90 Nm |
| Cylinder head bolts — Stage 4 | (1, 2) |
| Cylinder head bolts — Stage 5 | 20 Nm |
| Cylinder head bolts — Stage 6 | 200 ° |
| Cylinder head bolts — Stage 7 | (3 - 6) |
| Cylinder head bolts — Stage 8 | 20 Nm |
| Cylinder head bolts — Stage 9 | 200 ° |
| Cylinder head bolts — Stage 10 | (7 - 10) |
| Cylinder head bolts — Stage 11 | 20 Nm |
| Cylinder head bolts — Stage 12 | 200 ° |
| Spark plugs | 25 ± 5 Nm |
| Knock sensor | 20 Nm |
| Wheel bolts | 105 Nm |
| Front hub | 280 Nm |
| Rear hub | 175 Nm |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.