Engine Mercedes M112 E26

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.

Specifications

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.