How do I check if my car (Hyundai Elantra 2005) is running low on the coolant?
Coolant Level Check Overview: Inspect coolant hoses and radiator for leaks. The antifreeze or cooling fluid reservoir (expansion tank) is usually a translucent white color. You should be able to see the fluid inside and the cap should be labeled accordingly. Remove the expansion tank cap and look into the tank. Check the coolant level in the expansion tank. The expansion tank has two level marks on the side of it: “Full” and “Low”. The coolant level should be somewhere between the “Low” and “Full” marks. If the fluid below the “Low” mark, add as needed. See process for adding coolant below. Take note of the coolant’s color. It should be clean and, depending on the brand, transparent, green, red, blue or yellow in color. If it’s brown or rust-colored, the car may need a radiator flush. There should not be anything else in the coolant; if you see oil in the radiator or expansion tank, it may be evidence of an internal engine defect such as a blown head gasket. Adding Coolant Wait 15-20 m
