111.975 engine — Mercedes-Benz 2.3 (2.3L)
2.3L · 193 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | 111.975 |
| Capacity | 2295 cc |
| Idle speed | 600 - 900 rpm |
| Normal | 7.5 - 10.5 bar |
| Differential limit between cylinders | 1.5 bar |
| Oil pressure | > 0.3 / 700 > 3.0 / 3000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | ME-SFI 2.1 |
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Spark plugs (make and type) | Bosch F 7 KTCR |
| Spark plug gap | 0.8 mm |
| Injection pressure/system pressure | 3.1 - 3.8 bar |
| CO exhaust gas | < 0.5 % |
| CO2 | 14.5 - 16.0 % |
| HC | 100 ppm |
| O2 | 0.1 - 0.5 % |
| CO at fast-idle speed | < 0.3 % |
| Fast-idle speed | 2200 - 2800 rpm |
| Lambda | 0.97 - 1.03 |
| Lambda change (Delta Lambda) | 0.03 |
| Oil temperature during test | 60 °C |
| Basic method | ME (130 - 170) mbar |
| Alternative method (Germany only) | Nr. 2, 0 ± 25 |
Cooling system
| Cap pressure | 1.3 - 1.5 bar |
| Thermostat opens at | 85 - 89 °C |
Electrical
| Battery | 62 Ah |
| Alternator | 90 A |
Capacities
| Engine sump, incl. filter | 5.5 l |
| Manual transmission | 717.460 |
| Gearbox refill | 1.5 l |
| Automatic transmission | 722.605 |
| Initial filling | 7.5 (+ 0.5) l |
| Differential | 1.1 l |
| Cooling system | 8.0 l |
| Cooling system | 8.5 l |
| Air-conditioner refrigerant | 850 g |
| Air-conditioner compressor oil | 120 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 55 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Cylinder head (M8 bolts) | A |
| Spark plugs | 28 Nm |
| Oxygen sensor | 55 Nm |
| Main bearing cap — Stage 1 | 55 Nm |
| Main bearing cap — Stage 2 | 95 ° |
| Big-end bearing cap — Stage 1 | 5 Nm |
| Big-end bearing cap — Stage 2 | 25 Nm |
| Big-end bearing cap — Stage 3 | 90 ° |
| Oil plug | 30 Nm |
| Rear hub | 220 Nm |
| Wheel nuts | 110 Nm |
Emissions
| Emission code | 70/220*1996/69 |
| Emission standard | Euro 2 |
| CO2 average | 233 g/km |
| CO | 0.980 - 1.190 g/km |
| HC NOx | 0.174 - 0.292 g/km |
| CO2 average | 237 g/km |
| CO | 0.460 - 0.800 g/km |
| HC NOx | 0.199 - 0.287 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.