Hi, i have the vehicle listed above Megane 3. The problem is, water is coming out from the coolant tank, there is a lot of air pressure inside even the engine is cold and due to this the heater is not working properly. I have changed the water pump, thermostat and also cleaned the radiator. The mechanic told me that the air pressure is due to the head gasket which is very costly. I have to ask the usage of the Blue Devil is good for this or should i do something else? Please guide me. Waiting for your kind response, thanks.
Feb 8, 2022 at 10:56 AM
