Warning: DO NOT attempt to remove the expansion tank cap while the engine is hot - you risk scalding yourself. Do not leave the coolant container open for long periods of time, as it is poisonous.
Prevention
A closed cooling system does not require regular topping up of the fluid. If you have to do this often, there are leaks in the system. Check the radiator, all hoses and connections for signs of leaks. If a leak is found, fix it as soon as possible.
Use antifreeze all year round, not just in winter. Do not top up the cooling system with clean water, as this will dilute the antifreeze excessively.
1. The coolant level depends on the engine temperature. When the engine is cold, the coolant level should be between the "MAX" marks...
2. ...and "MIN", on the side wall of the tank. When the engine is hot, the fluid level may be slightly above the "MAX" mark.
3. If it is necessary to add coolant, wait until the engine has cooled down. Slightly unscrew the expansion tank cap counterclockwise so that you can hear steam coming out of the tank. After releasing excess pressure, turn the cap counterclockwise so that it can be removed.
4. Add a mixture of antifreeze and water until the level is between the marks. Install the cap and screw it on tightly.
