The M104 E30 engine had 2 overhead camshafts, with 4 valves per cylinder. The shafts were driven by a roller chain. There was a variable valve timing. As you know, sports cars had such a scheme of all kinematics. Motors Mercedes M104 E30 have proven to be reliable devices (with minor flaws).
Specifications
| Manufacturer | Stuttgart-Bad Cannstatt Plant |
| Also called | M104 |
| Production years | 1989-1993 |
| Cylinder block alloy | cast iron |
| Fuel system | injector |
| Configuration | inline |
| Number of cylinders | 6 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 80.2 |
| Cylinder bore, mm | 88.5 |
| Compression ratio | 10 |
| Displacement, cc | 2960 |
| Power output, hp | 220/6400 231/6300 |
| Torque output, Nm / rpm | 265/4600 272/4600 |
| Fuel type | 95 |
| Euro standards | — |
| Weight, kg | — |
| Fuel consumption, L/100 km — city — highway — combined |
16.2 8.8 10.4 |
| 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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