Engine cooling system Mercedes C-Class (W203)

Cooling and Heating System Specifications
Design Thermosiphon with vane water pump. Thermostatic control. With separate expansion tank. Electric fan, switched on and off from control unit Coolant: a mixture of...

General description of the cooling system
Until the engine is warmed up, the coolant circulates only in the cylinder head and block and in the heat exchanger of the interior heater. As the coolant temperature...

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

Replacing the coolant
Please also refer to Section Checking the functioning of the cooling system and frost resistance of the coolant. Replacing the liquid . The coolant must be replaced when...

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

Removal and installation the thermostat
Coolant pump and thermostat. 4-cylinder petrol engine 111 1 — Thermostat housing sealing ring; 2 - Cork; 3 — Sealing ring; 4 — Lid; 5 — Bolt M8, 25Nm; 6 — Coolant pump;...

Checking the Thermostat
When the engine warms up, the thermostat turns on a large cooling circuit. In this case, the thermostat continuously expands from size "a" to size "b". 1. Before...

Checking the cooling system under pressure
Cooling System Pressure Testing Tools 4800-1 - Hand pump 4800-2 — Hose 4800-15 — Nozzle Examination Leaks in the cooling system and the function of the safety valve in...

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

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

Removal and installation the radiator (models with manual transmission)
Radiator and fan 1 - Pin, fastening element, front center; 2 - Upper rubber support; 3 - Cover, fastening element, front center; 4 - Upper air duct; 5 - Rivet, fastening...

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TEXTHTMLBB Code

190 (W201) (1982-1993)