If it leaks due to high temperatures, you may smell it in the cabin. A Sweet SmellĬoolant has a distinct sweet smell. However, as temperatures increase, you will experience poor fuel economy and increased emissions. If your engine is running at optimum temperature, fuel will burn efficiently hence keeping consumption low.

In some cases, a blown head gasket or overpressure in the cylinder head could occur, leading to coolant leaks and potential engine damage. This could involve checking the radiator cap, hoses, expansion tank, intake manifold gasket, and other components linked to the cooling system. This can be a constant flow of hot air or a complete lack of heat and a warning that something’s wrong with your cooling system. Regularly inspect your Volvo for signs of coolant leaks or damage. In the event of a cooling system malfunction, you may experience problems with your internal heating system. Your car’s heater utilizes the residual heat generated by your engine. This will help cool the engine and allow you to start diagnosing the problem. If you notice this when driving, pull over, and open the hood. If it starts inclining towards red, this is one of the key indicators that something’s wrong with your cooling system. Rising Temperature Gauge Inclining Towards RedĪfter driving your car for some time, you become familiar with the position of your temperature gauge when everything’s okay. What are The Warning Signs of Low Car Coolant?īefore your engine starts overheating or cuts out, there are several indicators that will signal towards a malfunctioning cooling system.

Low coolant engine light