104.941 engine — Mercedes-Benz 2.8 (3.6L)
3.6L · 193-280 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | 104.941 |
| Capacity | 2799 cc |
| Idle speed | 550 - 850 rpm |
| Normal | 13.5 - 15.5 bar |
| Minimum | 8.2 bar |
| Differential limit between cylinders | 1.5 bar |
| Oil pressure | 0.3 / 700 - 800 3.0 / 3000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | HFM-SFI (-> 07/1996) ME-SFI 2.1 (08/1996 ->) |
| Number of cylinders | 6 |
| Firing order | 1-5-3-6-2-4 |
| Ignition coil resistance, primary | 0.3 - 0.6 ohms |
| Ignition coil resistance, secondary | 5200 - 8500 ohms |
| Spark plugs (make and type) | Beru 14F-8DUO Bosch F8DCO |
| Spark plug gap | 0.8 mm |
| Injection pressure/system pressure | 2.5-3.8 / 3.2-3.6 bar |
| Injection pressure/system pressure | 3.7 - 4.2 bar |
| Injection time | 2.5-3.8 / 550-850 ms/rpm |
| 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) | 0.02 |
| Oil temperature during test | 60 °C |
| Closed-loop test at: | 500 - 1100 rpm |
| Basic method | HFM (130 - 170) ME (30 - 70) mbar |
| Alternative method (Germany only) | Nr. 2, 0 ± 10 (HFM) Nr. 2, 0 ± 25 (ME) |
Cooling system
| Cap pressure | 1.3 - 1.5 bar |
| Thermostat opens at | 87 °C |
| Thermostat opens at | 85 - 89 °C |
Electrical
| Battery | 74 Ah |
| Alternator | 90 / 115 / 120 A |
| Battery | 100 Ah |
Capacities
| Engine sump, incl. filter | 7.0 l |
| Manual transmission | 717.441 |
| Gearbox refill | 1.5 l |
| Automatic transmission | 722.424 |
| Initial filling | 6.6 l |
| Gearbox refill | 5.5 l |
| Automatic transmission | 722.604/629 |
| Initial filling | 7.5 (+ 0.5) l |
| Differential | 1.1 l |
| Cooling system | 10.0 l |
| Cooling system | 10.5 l |
| Air-conditioner refrigerant | 950 (-> 1A168524, -> 1F164269) g |
| Air-conditioner refrigerant | 850 (1A168525 ->, 1F164270 ->) 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 ° |
| Spark plugs | 28 Nm |
| Oxygen sensor | 55 Nm |
| Wheel nuts | 110 Nm |
| Rear hub | 220 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.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.