Mercedes-Benz M119 engine

Mercedes-Benz M119 engine
Overview
ManufacturerMercedes-Benz
Production1989–1999
Layout
Configuration90° V8
Displacement4.2–6.5 L (256–397 cu in)
Cylinder head materialAluminium
ValvetrainDOHC 4 valves x cyl. and VVT
Compression ratio10.0:1, 11.0:1
Combustion
TurbochargerIn some 5.0 L racing versions
Fuel systemFuel injection
Fuel typePetrol
Cooling systemWater cooled
Output
Power output268–960 hp (272–973 PS; 200–716 kW)
Torque output400–1,085 N⋅m (295–800 lb⋅ft)
Chronology
PredecessorMercedes-Benz M117
SuccessorMercedes-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