Engine cooling and lubrication system Mercedes S-Class (W116)
Engine lubrication system — general information In eight-cylinder engines, the oil flow is directed to an air-cooled oil cooler; The operation of the radiator is controlled by a thermostat, which sends oil to the...
Removal and installation of the oil pump The bulkhead of the oil pump is not required; if the oil pressure drops due to wear of the pump, the latter must be replaced. The design of the pump and its dimensions...
Oil filter The oil filter is installed on the six-cylinder engine on the left side and on the eight-cylinder engine at the bottom on the right side. The main and additional oil...
Removal and installation of an oil crankcase Oil sumps from six or eight-cylinder engines are removed without removing the engines from the vehicle. However, the amount of work performed is different....
Engine cooling system — general information The engine cooling system is forced, liquid using antifreeze. On fig. 108 and 109 show diagrams of cooling systems for two types of engines. Pic. 108. The scheme of...
Draining and filling the cooling system With a hot engine, slowly open the expansion tank cap and release steam. In any case, the coolant temperature must not exceed 90°C. Set both taps of the body heater on...
Cooling liquid The cooling system is filled at the factory with antifreeze and must be filled with it for the entire period of operation. When mixing antifreeze and water, certain...
Radiator and fan Checking the radiator cap and radiator The cooling system operates under excess pressure. The radiator cap contains a valve with a spring that closes the cooling system....
Removal and installation of the pump of a cooling liquid Six-cylinder engine Drain coolant ( section 5.1.1 ). Remove radiator ( section 5.2.2 ). Remove fan with clutch. Loosen the tension of the belts and unscrew the bolts...
Thermostat — general information The thermostat is located in a housing on the cylinder head. The ball valve in the thermostat ensures that air is automatically bled from the cooling system when it is...
Adjusting the tension of the coolant pump drive belts The location of the drive belts of the units is shown in fig. 114 for a six-cylinder engine and in fig. 115 for an eight-cylinder engine. Check that the drive belts are...
Specifications for lubrication and cooling systems Engine lubrication system Type - all engines - combined with gear pump Minimum oil pressure - 0.5 bar - At operating temperature, idling speed, 3.0 bar - at 3000 rpm...