1. Pull over to the side of the road, stop the vehicle, shift the transmission to Neutral/Idle and apply the parking brake. If you have been using the air conditioner, turn it off.
2. If coolant or its vapors come out of the radiator or coolant reservoir, turn off the engine and wait with the hood open until the vapors stop emitting. If neither coolant nor fumes are coming out, leave the engine running and check that the radiator fan is running. If not, turn off the ignition.
3. Visually inspect and inspect the radiator, radiator hoses and underside of vehicle for leaks. However, it is normal for water to drip from the air conditioner after use. When the engine is running, be careful to keep hands and clothing away from the moving fan and V-belt.
4. If coolant leaks out, stop the engine immediately. Carry out the necessary repairs at a service station.
5. If there is no noticeable coolant leakage, check the coolant expansion tank. If it is empty, with the engine running, fill it with water to about half the height.
Caution: Never attempt to remove the radiator cap while the engine and radiator are hot. Boiling liquid or its vapor escaping under pressure can lead to serious consequences.
6. After the engine temperature has cooled to normal, check the coolant level in the reservoir again. If required, fill the tank halfway. Large losses of coolant can be caused by leaks in the cooling system. In this case, you should contact a service station as soon as possible.