While driving on a long road, the temperature of my 407 vehicle suddenly increased. Later, I looked and there was no such thing left in the vehicle. Anyway, we put the water in, it still continues to flow, I went for a second. In the industry, the engine plug was punctured and it was necessary to remove the top cover trigger, or rather the engine, in order to remove and install a product worth 40 TL. As an expense, the repairman asked for 4000 TL. As the cost was high, I called my friend without knowing what to do. When asked about such things as the timing belt and fuel pump, he said that he would reach there. I went there and asked for the cost, he asked for 1000 TL. I asked the part of my friend, what's up, and he suggested me a radiator crack sealant fluid. Its price is 50 TL. Lukoil Di brand I guess. I put it in this place where the car will be put. It kept flowing the first day. I took the car home. The second day I checked, it's still beating. On the 3rd day, I started the vehicle and cycled a little. It started to reduce the water quite a bit. Today, on the 4th day, I will check the water of the car when I go to work. But I think it works. Guys, the mechanic used to take care of my vehicles for 10 years. But I saw that the mechanic also had his eye on the pocket. I thought that if there is a friend who has experienced such a situation, maybe it will be useful for us. May God grant us to ride without accident, our vehicles.