Mercedes-Benz M119 engine
| Mercedes-Benz M119 engine | |
|---|---|
| Overview | |
| Manufacturer | Mercedes-Benz |
| Production | 1989–1999 |
| Layout | |
| Configuration | 90° V8 |
| Displacement | 4.2 L (4,196 cc) 5.0 L (4,973 cc) 6.0 L (5,956 cc) |
| Cylinder bore | 92 mm (3.62 in) 96.5 mm (3.80 in) 100 mm (3.94 in) |
| Piston stroke | 78.9 mm (3.11 in) 85 mm (3.35 in) 94.8 mm (3.73 in) |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC 4 valves x cyl. and VVT |
| Compression ratio | 10.0:1, 11.0:1 |
| Combustion | |
| Turbocharger | In some 5.0 L racing versions |
| Fuel system | Fuel injection |
| Fuel type | Petrol |
| Cooling system | Water cooled |
| Output | |
| Power output | 279–960 hp (283–973 PS; 208–716 kW) |
| Torque output | 400–1,085 N⋅m (295–800 lb⋅ft) |
| Chronology | |
| Predecessor | Mercedes-Benz M117 |
| Successor | Mercedes-Benz M113 |
The Mercedes-Benz M119 is a V8 automobile petrol engine produced from 1989 through 1999. It was available in 4.2 L; 5.0 L; and 6.0 L displacements. It was a double overhead cam design with 4 valves per cylinder and variable valve timing on the intake side. It was replaced by the 3-valve M113 starting in 1997.
The M119 differed from the M117 in the following ways:
- The engine block uses asbestos-free gaskets and has better oil flow
- The cylinder head is now a 4-valve aluminium unit with dual overhead camshafts
- The connecting rods are forged and enable cooling of the pistons with sprayed oil
- The pistons are iron-coated cast aluminium
- An improved vibration damper system is used
- The aluminium oil pan has bolted-on oil baffles to prevent foaming of the engine oil
- The intake camshaft timing is adjusted hydro-mechanically up to 20°:
- 0–2000 rpm — retarded for improved idle and cylinder scavenging
- 2000–4700 rpm — advanced for increased torque
- 4700+ rpm — retarded for improved volumetric efficiency