Engine cooling system М110/М123 Mercedes E-Class (W123)
Cooling system — general information Note. Tightening torques for threaded connections, kgf·m: - radiator drain plug: 0.15-0.20; - water pump: 0.9; - fan with electromagnetic clutch: 2.0-2.4. The fan drive...
Draining the cooling system Attention! It is recommended to drain the coolant from a cold engine. If this is not possible, place a piece of thick cloth over the filler cap of the radiator or...
Flushing the cooling system Over time, the water passages of the radiator and engine narrow or even become completely clogged with scale or deposits, reducing the efficiency of the cooling system....
Filling the cooling system 1. Replace the radiator and thermostat and connect all hoses. 2. Install and tighten the drain plugs of the radiator and cylinder block. 3. With the heater in the hot...
Removal, check and installation of the thermostat Thermostat and housing parts 1 - hose; 2 - fitting; 3 - hollow screw (models with air conditioning system); 4 - tube (models with air conditioning system); 5 - thermal...
Removal and installation of the water pump Water pump and magnetic fan 1 - electromagnetic clutch; 2 - fan; 3 - pulley; 4 - drive belt; 5 - hub; 6 - shaft and bearings; 7 - casing; 8 - sliding ring seals; 9 -...
Water pump repair Note. If the water pump fails, it is best to replace it entirely. However, you can limit yourself to replacing the seal and the shaft with the bearing. Cross section of...