Contents

Welcome

Engine model series OM 457 LA

• Engine OM 457 LA
• Cylinder head
• Cylinder head - cross section (transverse and longitudinal)
• Port assignments in the cylinder head gasket
• Cylinder head bolts - tightening instructions
• Setting valve play
• Removing / installing the nozzle holder combination
• Valve cover and valve cover gasket
• Oil pan
• Pump-line-nozzle injection system
• Removing / installing the MR/PLD unit pump
• Pistons
• Lubrication schematic diagram
• Oil spray nozzle
• Crankcase and cylinder liner
• Camshaft
• Fuel system
• Fuel pump
• Fuel prefilter with heated water separator
• Planetary drive starter
• Fan drive and fan systems
• Air compressor
• Turbocharger BR S400
• Engine oil and filter change
• Replacing the fuel filter
• Fuel filter with water separator - replacing the filter element
• Air cleaner, engine coolant service

Series 500 Engine models

• Technical features
• Cylinder head - port assignment
• Cylinder head
• Cylinder head mounting
• Cylinder head gasket
• EURO 2 and EURO 3 cylinder heads compared
• Valve assembly
• Pump-line-nozzle injection system (PLD)
• Removing/installing the MR / PLD unit pump
• EURO 2 and EURO 3 pistons
• Connecting rod
• Crankcase
• Cylinder liners
• EURO 2 and EURO 3 cylinder liners compared
• Crankcase ventilation system
• Fuel system
• Oil cooler and oil filter housing – component locations
• Oil circuit
• Engine oil system
• Oil spray nozzle
• Water guide
• Thermostat location
• Supercharging system and charge air ducting
• Engine oil and filter change
• Cleaning the fuel prefilter / filter insert
• Fuel prefilter with water separator - replacing the filter element
• Replacing the oil separator insert
• Replacing the fuel filter - air cleaner - coolant

Engines OM 904 and 906

• Engine series 900
• Technical features
• Port assignments in the cylinder head gasket
• Tightening instructions for cylinder head bolts
• Valve control
• Setting valve play
• Pump-line-nozzle injection system (PLD)
• Crankcase
• Pistons and piston rings
• Connecting rod
• Pistons and connecting rod - modifications
• Engine oil circuit
• Removing/installing the oil pan
• Fuel system
• Supercharging system and charge air ducting
• Removing / installing the coolant thermostatic control
• Engine oil and filter change
• Cleaning the fuel prefilter - filter insert
• Fuel prefilter with water separator - replacing the filter element
• Replacing the fuel filter - air cleaner - coolant