A coolant leak of any sort is super hazardous because your vehicle depends on its coolant to keep the engine at an optimal temperature. When your radiator leaks, your engine is at high risk of overheating. If you notice a leak, please immediately take your BMW, Range Rover, Land Rover, MINI, Mercedes Benz, or Jaguar to Terry Sayther Automotive for an accurate diagnosis and repairs. You may be wondering, “what causes a radiator to leak anyway?”.

Poor Quality or Incorrect Coolant

Cheap, watery, or even the wrong type of coolant can make your vehicle susceptible to overheating. When you put the bad stuff in your car, your radiator will discharge it.

Heater Core

The heater core directly affects your engine temperature. When it is malfunctioning, it can cause your engine to blister. On top of that, your heating functions will not work to warm you up in the winter.


As you can guess, the thermostat is reliable for measuring your engine’s temperature. When the motor gets too hot, it opens up the radiator to allow coolant to pass through. However, if the thermostat is stuck in a closed position, it will inhibit coolantflow through the radiator


As you use your car, debris can get built up inside your radiator, its hoses, and those parts connecting the hoses. The build-up of gunk is expected, so do not panic. However, rust is not; rust can eat through metals and cause coolant leaks. Most manufacturers recognize that corrosion is to be expected, which is why they recommend you have your radiator flushed out. This service will remove the residue, refresh your coolant, and stop rust from developing.

These are many possible ways to explain why your radiator might leak. If you are at risk of engine overheating, please get your car to the repair shop immediately. Our team at Terry Sayther Automotive would be happy to answer your questions and address your concerns. Please give us a call or visit today!

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