Engine cooling system Mercedes C-Class (W203)

Cooling and Heating Specifications
Design Thermosyphon with a vane water pump. Thermostatic adjustment. With separate expansion tank. Electrically driven fan, switched on and off by the control unit...

General description of the cooling system
While the engine is not warmed up, the coolant circulates only in the head and cylinder block and in the passenger compartment heater heat exchanger. As the coolant...

Antifreeze — antifreeze
Coolant The cooling system is filled year-round with a mixture of water, antifreeze and anti-corrosion agent. This prevents rust and corrosion, salt deposits and, in...

Coolant replacement
See also Section Checking the functioning of the cooling system and frost resistance of the coolant. Fluid replacement . The coolant must be replaced when the cooling...

Removal and replacement of cooling system hoses
Note. Observe the precautions in Section Checking the condition and replacing the engine compartment hoses, localizing leaks . 1. If, as a result of an inspection...

Removal and installation of the thermostat
Coolant pump and thermostat. 4-cylinder petrol engine 111 1 — a sealing ring of the case of the thermostat; 2 - Cork; 3 - O-ring; 4 - Cover; 5 - Bolt M8, 25Nm; 6 -...

Thermostat check
The thermostat, when the engine warms up, turns on the large cooling circuit. In this case, the thermostat continuously expands, from the size «A» up to size «b». 1....

Checking the pressure cooling system
Tools for testing the cooling system under pressure 4800-1 - Hand pump 4800-2 - Hose 4800-15 - Nozzle Examination Leaks in the cooling system and the operation of the...

Removal and installation of the pump of a cooling liquid
4-cylinder petrol engine The coolant pump is located at the front of the cylinder block and is driven by a V-belt. Removing 1. Drain the coolant, refer to the...

Removal and installation of the fan (models with manual transmission)
Removing 1. Disconnect the negative cable (-) battery with the ignition off. The cabin air filter box must first be removed. Attention! Before disconnecting the cable,...

Removing and installing the radiator (models with manual transmission)
Radiator and fan 1 - Finger, fastening element, front center; 2 - Rubber support top; 3 - Cover, fastening element, front center; 4 - Top air duct; 5 - Rivet, fastening...