111.948 engine — Mercedes-Benz 2.0 (2L)
2L · 129 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | 111.948 (M 111 E20) |
| Capacity | 1998 cc |
| Idle speed | 600 - 900 rpm |
| Normal | 10.5 - 12.0 bar |
| Differential limit between cylinders | 1.5 bar |
| Oil pressure | 0.9-4.0 / 750 2.0-6.0 / 1500 3.2-6.0 / 2000 3.6-6.0 / 3000 4.0-6.0 / 4000-6000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | PEC |
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Spark plugs (make and type) | Bosch F8DC4 Beru 14F-8DU4 |
| Spark plug gap | 0.8 mm |
| CO exhaust gas | 0.5 % |
| CO at fast-idle speed | 0.3 % |
| Fast-idle speed | 2500 ± 300 rpm |
| Lambda | 0.97 - 1.03 |
| Oil temperature during test | 60 °C |
Cooling system
| Cap pressure | 1.4 ± 0.1 bar |
| Thermostat opens at | 87 ± 2 °C |
Electrical
| Battery | 66 Ah |
| Alternator | 90 A |
Capacities
| Engine sump, incl. filter | 7.5 l |
| Manual transmission | GTO 24-5/3.769-0.721 |
| Gearbox refill | 1.9 l |
| Automatic transmission | ZF 4HP20 |
| Gearbox refill after overhaul | 8.1 l |
| Gearbox refill | 4.4 l |
| Gearbox refill after overhaul | 8.6 l |
| Gearbox refill | 4.9 l |
| Cooling system | 8.7 l |
| Air conditioning | 7SB16 |
| Air-conditioner refrigerant | 850 g |
| Air-conditioner refrigerant | 1100 (HH7) g |
| Air-conditioner compressor oil | 175 ml |
| Air-conditioner compressor oil | 410 ml |
| Air conditioning | 10PA17C |
| Air-conditioner refrigerant | 920 g |
| Air-conditioner compressor oil | 120 ml |
| Air conditioning | SD7V16 |
| Air-conditioner compressor oil | 135 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 |
| Camshaft bearing caps | 21 Nm |
| Spark plugs | 28 Nm |
| Oxygen sensor | 55 Nm |
| Max. bolt length | 63.8 mm |
| 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 |
| Front hub | 435 Nm |
| Rear hub | 435 Nm |
| Wheel nuts | 175 Nm |
Emissions
| Emission code | 70/220*1996/69 |
| Emission standard | Euro 2 (10/1998 ->) |
| CO2 average | 268 g/km |
| CO | 0.683 g/km |
| HC NOx | 0.194 g/km |
| Emission code | 70/220*1998/77 |
| Emission standard | Euro 3 (02/2000 ->) |
| CO | 0.308 g/km |
| HC | 0.109 g/km |
| NOx | 0.070 g/km |
| HC NOx | 0.179 g/km |
| Emission code | 70/220*2001/1A |
| Emission standard | Euro 3 (09/2001 ->) |
| CO2 average | 280 g/km |
| CO | 0.482 g/km |
| HC | 0.174 g/km |
| NOx | 0.064 g/km |
| Emission standard | Euro 2 (07/1999 ->) |
| CO2 average | 284 g/km |
| CO | 0.462 g/km |
| HC NOx | 0.174 g/km |
| CO | 0.937 g/km |
| HC | 0.215 g/km |
| NOx | 0.084 g/km |
| HC NOx | 0.298 g/km |
| Emission standard | Euro 3 (08/2001 ->) |
| CO2 average | 309 - 310 g/km |
| CO | 0.477 g/km |
| HC | 0.227 g/km |
| NOx | 0.073 g/km |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.