The M112 E26 engine – one of the youngest representatives in the extensive family of M112 engines appeared in 2000 as a replacement for the M112 E24 and was intended for Mercedes models with an index of 240.
The V6-family includes: M112 E24, M112 E26, M112 E28, M112 E32, M112 E37, M272 E25, M272 E30, M272 E35, M276 DE30, M276 DE35.
The engine is based on a cylinder block from the M112 E28, in which a crankshaft with an even smaller piston stroke was placed. The cylinder heads are the same as on the M112 E28: aluminum, with one camshaft (SOHC) and three valves per cylinder: two intake, one exhaust. The diameter of the intake valves is 36 mm, the exhaust valves are 41 mm. There is a variable valve timing system, hydraulic lifters, an intake manifold with variable length.
|Fuel system||distributed injection|
|Power output, hp||170 – 177|
|Torque output, Nm||240|
|Cylinder block||aluminum V6|
|Block head||aluminum 18v|
|Cylinder bore, mm||89.9|
|Piston stroke, mm||68.2|
|Recommended engine oil||5W-30|
|Engine oil capacity, liter||7.5|
|Euro standards||EURO 3/4|
|Fuel consumption, L/100 km (for E240 W211)
|Engine lifespan, km||~300 000|
Disadvantages of the M112 E26 engine
- The signature failure of this series of engines is the destruction of the crankshaft pulley.
- The remaining engine problems are somehow related to increased oil consumption.
- Due to contamination of the crankcase ventilation, grease creeps out from under the gaskets and seals.
- The main cause of oil burnout here is usually in hardened valve stem seals.
- Lubrication leak points are also the oil filter housing and heat exchanger.