The M104 E28 engine is a 2.8 or 3.2 liter inline 6-cylinder engine. There was also a 3.6-liter AMG version. The engine had two camshafts and 4 valves per cylinder. On engines without an ignition distributor, the intake camshaft was equipped with an electro-hydraulic clutch to change the valve timing. The phase change took place without smooth adjustment – only two extreme positions (“earlier” – “later”).
Specifications
| Manufacturer | Stuttgart-Bad Cannstatt Plant |
| Also called | M104 |
| Production years | 1992-1998 |
| Cylinder block alloy | cast iron |
| Fuel system | injector |
| Configuration | inline |
| Number of cylinders | 6 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 73.5 |
| Cylinder bore, mm | 89.9 |
| Compression ratio | 9.2 10 |
| Displacement, cc | 2799 |
| Power output, hp | 193/5500 197/5800 |
| Torque output, Nm / rpm | 270/3750 265/3000 |
| Fuel type | 95 |
| Euro standards | — |
| Weight, kg | — |
| Fuel consumption, L/100 km — city — highway — combined |
14.5 11.0 12.5 |
| Oil consumption, gr/1000 km | up to 1000 |
| Recommended engine oil | 0W-30 / 0W-40 / 5W-30 / 5W-40 / 5W-50 / 10W-40 / 10W-50 / 15W-40 / 15W-50 |
| Engine oil capacity, liter | 7.5 |
| Amount of engine oil for replacement, liter | ~7.0 |
| Oil change interval, km | 7000-10000 |
| Normal engine operating temperature, °C | ~90 | Engine lifespan, km — official information — real |
— 400+ |
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