* Check the coolant reservoir (usually a translucent plastic tank): Most cars have a coolant reservoir tank. Look for minimum and maximum lines. The coolant level should be somewhere between those lines. If it's low, you might need to add coolant (not just water). Low coolant is a serious issue and should be addressed promptly.
* Look for leaks: Check under your car for any puddles of greenish or yellowish liquid. This is often a sign of a coolant leak.
* Overheating: If your car overheats (temperature gauge goes into the red), this *could* indicate a lack of coolant, but it's more likely to be a problem with the cooling system itself, like a failing thermostat, water pump, or radiator. Never open the radiator cap when the engine is hot, as you could be severely burned.
Important Note: Do *not* simply add water to your cooling system. Cars use a specific coolant mixture (usually 50/50 coolant and distilled water), designed to prevent corrosion and operate efficiently at high temperatures. Adding only water can damage your engine. If you need to add fluid, use the correct type of coolant for your vehicle, as specified in your owner's manual.
If you see low coolant or have any concerns about your cooling system, take your car to a mechanic for diagnosis and repair. Ignoring low coolant levels can lead to significant engine damage.
