B230K engine — Volvo 2.3 (2.3L)
2.3L · 114-116 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | B230K |
| Capacity | 2316 cc |
| Idle speed | 800 rpm |
| Automatic | 900 rpm |
| Inlet | 0.35 - 0.40 mm |
| Exhaust | 0.35 - 0.40 mm |
| Normal | 9 bar |
| Oil pressure | 2.5 - 6.0/2000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Pierburg 2B5 |
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Timing stroboscopic (before TDC) | 15/800 °/rpm |
| Ignition coil resistance, primary | 0.6 - 0.8 ohms |
| Ignition coil resistance, secondary | 6900 - 8500 ohms |
| Spark plugs (make and type) | Bosch W7DC |
| Spark plug gap | 0.7 mm |
| Fuel pump pressure | 0.15 - 0.27 bar |
| CO exhaust gas | 0.5 - 2.0 % |
| CO2 | 13 - 16 % |
| HC | 300 ppm |
| O2 | 0.5 - 2.0 % |
| Oil temperature during test | 70 °C |
| Fast-idle speed | 2400 - 2600 rpm |
| CO at fast-idle speed | < 0.3 % |
| Fuel system (make and type) | Solex CISAC |
| Timing stroboscopic (before TDC) | 12/750 °/rpm |
| Ignition coil resistance, primary | 0.5 - 0.6 ohms |
| Ignition coil resistance, secondary | 3500 - 5300 ohms |
| Spark plugs (make and type) | Bosch WR6DC |
| CO exhaust gas | 0.5 - 1.5 % |
Cooling system
| Cap pressure | 1.0 bar |
| Thermostat opens at | 87 - 102 °C |
| Cap pressure | 1.5 bar |
| Thermostat opens at | 87 - 97 92 - 102 °C |
Electrical
| Battery | 55 Ah |
| Alternator | 64 A |
| Battery | 60 Ah |
| Alternator | 70 A |
Capacities
| Engine sump, incl. filter | 3.9 l |
| Gearbox refill | 2.3/1.6 l |
| Differential | 1.6 l |
| Gearbox refill | 3.9 ZF: 2.0 l |
| Cooling system | 8.5 l |
| Engine sump, incl. filter | 3.85 l |
| Gearbox refill | M40: 0.8 M45: 0.8 M41: 1.6 M46: 2.3 M47 (- 1987): 1.3 M47 (1987 -): 1.6 l |
| Gearbox refill | AW70: 7.4 AW71: 7.4 BW55: 3.5 l |
| Cooling system | 9.5 l |
Torque settings
| Cylinder head bolts — Stage 1 | 20 Nm |
| Cylinder head bolts — Stage 2 | 60 Nm |
| Cylinder head bolts — Stage 3 | 90 ° |
| Cylinder head bolts — Stage 1 | 100 Nm |
| Cylinder head bolts — Stage 2 | 45 ° |
| Wheel nuts | 85 Nm |
| Spark plugs | 25 Nm |
| Cylinder head bolts — Stage 1 | 60 Nm |
| Cylinder head bolts — Stage 2 | 110 Nm |
| Cylinder head bolts — Stage 3 | T = 80°C |
| Cylinder head bolts — Stage 4 | t = 30 min |
| Cylinder head bolts — Stage 5 | -90° ° |
| Cylinder head bolts — Stage 6 | 110 Nm |
| Cylinder head bolts — Stage 3 | +90° ° |
| Wheel nuts | 115 Nm |
| Spark plugs | 25 ± 5 Nm |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
Got a B230K problem? Ask for free.
Describe the symptoms — TorqFix replies with a diagnosis cited from verified workshop data.
Get free diagnosis →Who makes these pages, and how
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.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.