General engine data (Mercedes-Benz E-Class W124)

The design of engines with four, five and six cylinders is similar except for the number of cylinders. The engines have an in-line arrangement of cylinders with one overhead camshaft.

On a 4-cylinder engine, the crankshaft rests on five main bearings, and the axial clearance is adjusted by thrust half rings installed on both sides of main bearing No.3. On a 5-cylinder engine, the crankshaft rests on six main bearings, and the thrust half rings are located on both sides of bearing No.4. On a 6-cylinder engine, the crankshaft rests on seven main bearings, and the thrust half rings are located on both sides of bearing No.5.

The camshaft and high pressure fuel pump are driven by a double row chain from the crankshaft sprocket.

The valves are driven from the camshaft via hydraulic tappets.

The oil pump is driven by an additional chain from the crankshaft.

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