If you no longer have the manual, head online and visit forums dedicated to the make and model of your car — a fellow motorist should be able to point you in the direction of the coolant reservoir for your specific type of car. After filling, make sure that the cap of the expansion tank is replaced and tightened. If the level is below the minimum line, top it up to the maximum line and monitor on a daily basis. Leaks can occur throughout the cooling system, and may cause serious problems, like overheating and engine damage, if left unattended.
Cooling systems are pressurised, and by removing the fill cap when the engine is hot you run the risk of a serious burn. But what exactly should you do when the temperature gauge starts to climb towards the red, indicating that the engine is overheating? If you notice the temperature gauge creep into the red, the first thing to do is switch off the air conditioning. Switching it off reduces the engine load, so things will cool down faster — an absolute essential in the summer.
Turning the heaters to full will transfer heat away from the engine and into the cabin, which may not be very comfortable for you, but the engine will thank you.
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This process can help to make sure that your engine keeps running smoothly for many years. Since engines contain many parts that can rust, the coolant picks up the rust during the circulation process and deposits it in another part of the car.
Regular flushing keeps the coolant clean and prevents blockages. Depending on the vehicle and the coolant, the average time between flushes is two years or 30, miles for silicated coolants and up to five years or , miles for an extended drain coolant. You can tell which type of coolant you have by the color. The silicate coolants are usually green, and the extended drain coolants are often gold or orange.
If your car does not start like it should, take a look at the coolant overflow reservoir. Monitor it for the day to see if the level fluctuates. If it does, then the coolant is probably not cooling the engine like it should, and you should bring your car in to have it flushed. If you need to add coolant repeatedly, then you should have the system checked. If you see signs of a leak, you should also bring it to your dealer so they can take a look.
Make sure the car is cool, and then place a clean container under the drain valve. Open up the valve and allow a small amount of coolant to drain out into the container so you can see the color. If the coolant looks like there is rust in it, or if it is a brown color instead of the green or orange color it started out with, then you should bring it in to have the coolant flushed.
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