The Mercedes M119 E42 engine is the junior V8 in the M119 family, intended to replace the long-obsolete M116, with a displacement of 4.2 liters. The development of the E42 was carried out on the basis of a five-liter engine, the cylinder diameter of which was reduced to 92 mm and a crankshaft was installed with a piston stroke reduced to 78.9 mm. The cylinder block is covered with adapted cylinder heads from the M119 E50, with a variable valve timing system on the intake shafts and hydraulic compensators.
|Power output, hp||272 – 286|
|Torque output, Nm||400 – 410|
|Cylinder block||aluminum V8|
|Block head||aluminum 32v|
|Cylinder bore, mm||92|
|Piston stroke, mm||78.9|
|Compression ratio||10.0 – 11.0|
|Phase regulator||on the intake|
|Recommended engine oil||5W-40|
|Engine oil capacity, liter||6.5|
|Euro standards||EURO 2|
|Fuel consumption, L/100 km (for Mercedes S420 W140)
|Engine lifespan, km||~400 000|
The engine was installed on:
- Mercedes CL-Class C140 in 1992 – 1999;
- Mercedes E-Class W124 in 1991 – 1995; E-Class W210 in 1995 – 1999;
- Mercedes S-Class W140 in 1991 – 1998.
Disadvantages of the M119 E42 engine
- One of the most reliable engines in its class rarely worries owners.
- The weak point of the motor is the timing chain, often it stretches to 120,000 km.
- The impressive weight of the power unit negatively affects the resource of its pillows.
- Often plastic connectors for oil supply to hydraulic lifters require replacement.
- On all E-class models, the engine compartment wiring cracks quite quickly.