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Adding coolant to your car is an important maintenance task that helps to prevent your engine from overheating.
In this how-to guide, we'll look at how you can add coolant to your car step-by-step, ensuring your car runs smoothly and efficiently for longer.
What You Will Need to Add Coolant to Your Car
• Coolant (also known as antifreeze)
• Distilled water (if required by the coolant type)
• A funnel
• Gloves
• Safety glasses
First, ensure your car is parked on a flat surface and the engine is turned off.
If you have been driving for a while then make sure to let the engine cool down completely before you open the bonnet.
Working with a hot engine can be dangerous. The coolant system is pressurised and can cause burns if opened whilst still hot.
Open the bonnet of your car and locate the coolant reservoir.
This is usually a translucent plastic tank near the radiator.
It will have a cap marked with a symbol or the word "coolant" or "antifreeze". If you are unsure, check your vehicle’s handbook for details of where to find it.
On the side of the coolant reservoir, you should see markings that indicate the minimum and maximum levels that can be held.
If the coolant level is below the minimum mark, you will need to add more coolant.
If your coolant needs to be mixed with water, follow the instructions on the coolant container.
A 50/50 mixture of coolant and distilled water is common. But again, check the specific instructions for your brand of coolant.
Please note: it is not a good idea to use tap water, as this will likely contain minerals that can damage your engine.
Put on your gloves and safety glasses. Slowly unscrew the cap of the coolant reservoir. If you notice any hissing sound, wait for it to stop before completely removing the cap. This is to avoid any potential spray of hot coolant. Using a funnel, pour the coolant into the reservoir.
Be careful not to overfill it; the level should be between the minimum and maximum marks.
If you accidentally spill any coolant, wipe it up immediately, as it can be harmful to pets and the environment.
Once you have filled the reservoir to the appropriate level, securely screw the cap back onto the coolant reservoir.
Ensure it is tightly closed to prevent any leaks.
Start your car and let the engine run for a few minutes.
Check the area around the coolant reservoir - and under the car - for any signs of leaks.
If you notice any leaks, you may need to consult a mechanic for further inspection.
If you have any leftover coolant or if you used any rags to clean up spills, dispose of them properly according to your local council guidance.
Coolant is toxic and should not be poured down the drain or left where animals might ingest it.
• Check your coolant levels regularly, especially before long trips.
• Have your coolant system flushed and refilled according to your car’s maintenance schedule.
• Always use the type of coolant specified by your car’s manufacturer.
By following these simple steps to add coolant to your car, you can ensure your engine stays cool and runs efficiently.