B4184S10 engine — Volvo 1.7
Engine overview
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | B 4184 S10 |
| Capacity | 1731 cc |
| Idle speed | 750 rpm |
| Normal | 13.0 - 15.0 bar |
| Differential limit between cylinders | < 2.0 bar |
| Oil pressure | 1.0 / 750 3.5-7.0 / 4000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | EMS 2000 / LPG |
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Timing stroboscopic (before TDC) | 5 ± 2 / 750 °/rpm |
| Spark plugs (make and type) | Volvo 272207 Bosch FGR7DQE |
| Spark plug gap | Volvo: 1.1 - 1.3 Bosch: 1.35 mm |
| Fuel pump pressure | 3.5 bar |
| Injection pressure/system pressure | 2.2 - 3.1 bar |
| CO exhaust gas | < 0.5 % |
| Lambda | 0.97 - 1.03 |
| Lambda change (Delta Lambda) | 0.03 |
| Oil temperature during test | 60 °C |
| Fast-idle speed | 2500 - 3000 rpm |
| CO at fast-idle speed | < 0.3 % |
| Stage 1 | 1.35 - 1.45 bar |
| Stage 2 | 0.95 - 0.97 bar |
Cooling system
| Cap pressure | 1.4 - 1.6 bar |
| Thermostat opens at | 90 °C |
Electrical
| Battery | 55 / 74 Ah |
| Alternator | 80 A |
Capacities
| Engine sump, incl. filter | 5.4 l |
| Manual transmission | M5P |
| Gearbox refill | 3.4 l |
| Cooling system | 6.3 l |
| Air-conditioner refrigerant | 900 g |
| Air-conditioner compressor oil | 180 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 20 Nm |
| Cylinder head bolts — Stage 2 | 60 Nm |
| Cylinder head bolts — Stage 3 | 130 |
| Inlet manifold | 20 Nm |
| Knock sensor | 20 Nm |
| Oil filter | 25 Nm |
| Spark plugs | 25 Nm |
| Front hub — Stage 1 | 120 Nm |
| Front hub — Stage 2 | 60 ° |
| Rear hub — Stage 1 | 120 Nm |
| Rear hub — Stage 2 | 30 ° |
| Wheel nuts | 110 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.