B235L engine — Saab 2.3 (2.3L)
2.3L · 220 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | B235L |
| Capacity | 2290 cc |
| Idle speed | 825 rpm |
| Normal | 14.0 bar |
| Differential limit between cylinders | < 2.0 bar |
| Oil pressure | 2.5 / 2000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Trionic T7 |
| Number of cylinders | 4 |
| Firing order | 1 - 3 - 4 - 2 |
| Timing stroboscopic (before TDC) | 10 / 825 °/rpm |
| Spark plugs (make and type) | NGK PFR 6H-10 |
| Spark plug gap | 0.9 - 1.0 mm |
| Injection pressure/system pressure | 3.0 bar |
| Turbocharger (make and type) | Mitsubishi TD04HL-15T |
| Turbo boost | 0.45 bar |
| Lambda | 0.97 – 1.03 |
| CO exhaust gas | < 0.5 % |
| CO at fast-idle speed | < 0.3 % |
Cooling system
| Cap pressure | 1.4 - 1.5 bar |
| Thermostat opens at | 89 ± 2 °C |
| Stage 1/Fan 1 | 100 ± 2 °C |
| Stage 2/Fan 2 | 113 ± 2 °C |
Electrical
| Battery | 60 / 70 Ah |
| Alternator | 130 A |
Capacities
| Engine sump, incl. filter | 5.0 l |
| Engine sump, incl. filter | 5.4 l |
| Manual transmission | FM57 |
| Gearbox refill | 1.9 l |
| Automatic transmission | FA57 |
| Gearbox refill after overhaul | 7.0 l |
| Cooling system | 8.5 l |
| Air-conditioner refrigerant | 825 g |
| Air-conditioner compressor oil | 120 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 40 Nm |
| Cylinder head bolts — Stage 2 | 60 Nm |
| Cylinder head bolts — Stage 3 | 90 ° |
| Spark plugs | 27 Nm |
| Oil plug | 25 Nm |
| Oxygen sensor | 55 Nm |
| Wheel nuts | 110 Nm |
Emissions
| Emission code | 70/220*2003/76B |
| Emission standard | Euro 4 |
| CO2 average | 213 g/km |
| CO | 0.480 g/km |
| HC | 0.030 g/km |
| NOx | 0.010 g/km |
| Emission code | 70/220*2001/100A |
| Emission standard | Euro 3 (06/2003 ->) |
| CO2 average | 247 g/km |
| CO | 0.510 g/km |
| Emission standard | Euro 4 (09/2005 ->) |
| CO2 average | 244 - 247 g/km |
| CO | 0.372 - 0.510 g/km |
| HC | 0.030 - 0.036 g/km |
| NOx | 0.010 - 0.013 g/km |
| CO2 average | 211 - 214 g/km |
| CO | 0.411 - 0.480 g/km |
| HC | 0.030 - 0.031 g/km |
| NOx | 0.010 - 0.016 g/km |
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.