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Radiator performs a very important role in engine, it prevents the engine from getting over heat while engine is running. The coolant from the expansion tank runs trough the radiator, enters in to the engine and removes the extra heat generated while the engine is running and this process keeps on repeating to keep the engine running on a normal temperature.
Radiator consist of very fine aluminium or copper tubes which are attached to small tanks on each sides. When the coolant enters into the engine from one end and comes out from the other the temperature of the coolant increases in order to bring the coolant temperature down it enters into the radiator through very fine tubes and once the coolant reaches into these fine tubes the radiator fan blows air on to it as a result of this the temperature drops to normal temperature.
Due to continuous heat transfer and temperature changes the radiator walls and tubs becomes weak over time and are unable to hold the coolant level at a required pressure which results in a coolant leakage, Radiators are also tends to clog over time , if this happens the chances will increase that the car engine will be overheated and results in head gasket failure.
It is recommended that the engine coolant should be replaced at regular intervals, approximately every 30,000 to 40,000 miles in order to keep it free of any contaminations like rust and lime scale to reduce the changes of blockage.
It depends on the make and model of the car. To find out the exact cost of radiator replacement on your car please select your car make and model at the top of the page. Book your car repair with mobile mechanics and garages through out the uk, who can come to your home or office to repair your car.