What does a Radiator do?

The radiator is a component in the engine that keeps the car's engine coolant cool. It consists out of radiator core with to each side a small tank through which the coolant flows. As the coolant flows through the radiator core it is cooled by the cold air that the radiator fan channels through the core. In turn the coolant's heat dissipates and the coolant is directed back to the engine's cooling channels.

How do you know there is something wrong with the Radiator?

• When the 'Check Engine' warning light is on.
• When the engine runs at a higher temperature than usual (overheating).
• When there are leaks underneath the car (this is usually red, green or yellow fluid).
• When there are leaks / moist patches on or around the radiator.

When should you consider a Radiator replacement?

Over time problems can occur with the radiator as it is subject to significant temperature fluctuations. Older cars were fitted with brass side tanks and a brass or copper, which were particularly prone to rust and leaks. Modern cars are generally fitted with plastic side tanks which, on the other hand, are prone to crack and can also leak engine coolant.

A leaking radiator should be addressed as soon as possible seeing that a lower level of engine coolant can lead to an overheating engine and severe engine damage. Additionally, radiators can also clog up with dirt, leading to the engine overheating as less coolant can run through the radiator.

Should you experience an issue like this or those listed earlier, it is advisable to have the radiator inspected and, if necessary, have it replaced. Seeing that the radiator is a component that is especially prone to wear it should always be serviced as and when stipulated in the guidelines set out by your car's manufacturer.

What happens during a Radiator replacement?

• Mechanic will inspect the radiator and ancillaries for leaks.
• Mechanic will subject the cooling system to a pressure test.
• If necessary, the mechanic will replace the radiator.
• Mechanic will advise if any other parts ought to be replaced (like the radiator hoses).
• Mechanic will refill the cooling system with engine coolant.
• Mechanic will run the engine and, if necessary, test drive the car (check for leaks again).

How much does a Radiator replacement cost?

The cost of replacing the radiator depends on your car and what parts your car's manufacturer recommends using for the replacement. Find out what you could save by having your radiator replaced by Clickmechanic, by selecting your car at the top of this page!