The radiator is a heat exchanger that transfers heat from the engine’s coolant to the outside air. As coolant circulates through the engine block and cylinder head, it absorbs heat. That hot coolant then flows through the radiator core, where air passing over the fins cools it down before it circulates back through the engine. Without a functioning radiator, the engine would overheat very quickly.

Most vehicle manufacturers recommend a coolant flush every two to five years, or at specified kilometre intervals in your logbook. The exact timing depends on the type of coolant your vehicle uses. Long-life coolants can last longer, while older-style coolants may need changing more frequently. We check your coolant condition during every service and will let you know when it is due.

Yes. We offer coolant flushes as a standalone service. It’s a great way to maintain your cooling system between major services. We also include a full coolant flush whenever we replace a radiator to make sure the whole system is clean and free of contaminants.

If it’s a small leak at a hose connection or a minor crack, we can often repair it without replacing the whole unit. But if the core is corroded through, leaking in several spots, or clogged up with sediment inside, you’re generally better off with a new radiator. It’ll last longer and save you money compared to patching one that’s on its way out. We will always explain both options and help you make the best decision for your situation.

In an emergency, adding clean water to get you safely to a workshop is acceptable. However, running on straight water long-term is not recommended. Water does not contain the corrosion inhibitors that protect your radiator, water pump and engine block from internal rust and scale. It also boils at a lower temperature than a proper coolant mix, reducing the system’s ability to manage extreme heat. We use the correct specification coolant for your vehicle every time.

At highway speeds, air flows naturally through the radiator to cool the engine. In slow or stationary traffic, the electric cooling fan (or thermo fan) takes over that job. If the fan is not working properly, or if the thermostat is stuck, the engine temperature will climb quickly in stop-start conditions. A faulty coolant temperature sensor or low coolant can also contribute. We will diagnose the exact cause and fix it.

Different vehicles require different coolant formulations. Common types include OAT (Organic Acid Technology), IAT (Inorganic Acid Technology) and hybrid formulations. Using the wrong type can reduce corrosion protection and may damage seals. We always match the coolant to your manufacturer’s specifications, so you do not need to worry about getting it wrong.

A straightforward radiator replacement typically takes two to four hours, depending on the vehicle and how accessible the radiator is. Some vehicles, particularly those with tightly packaged engine bays, may take a little longer. We will give you a time estimate when you book in so you can plan your day.

Yes. We service and repair cooling systems on all makes and models, including European vehicles (BMW, Audi, Mercedes, Volkswagen), Japanese, Korean and Australian makes. Whether it is a family sedan, SUV, ute, 4WD or light commercial vehicle, we have the experience and parts access to get it sorted.

Yes. Along with EFTPOS and cash, we accept Afterpay and Openpay, so you can spread the cost into manageable payments that suit your budget.

Pull over safely as soon as it is safe to do so and turn off the engine. Do not open the radiator cap while the engine is hot, as the system is under pressure and you could be scalded. Let the engine cool for at least 20 to 30 minutes. If you have water, you can carefully top up the coolant reservoir once the system has cooled. Then drive gently to our workshop or call us on 08 9274 7311 and we will help you work out the safest next step. If the temperature climbs again, stop immediately and arrange a tow to avoid engine damage.

The cost depends on the make and model of your vehicle, the extent of the issue, and whether parts need to be replaced. Contact us for a fast, no-obligation estimate tailored to your vehicle.