Hello; We probably have a problem with the cylinder head gasket with the Omega B 3.0 MV 6 of my father. Time from the very beginning: About 3 weeks ago we brought the Omega into a workshop to change the timing belt with all the necessary parts and the water pump. After we picked up the car, the cooling fluid sank down after about 3 days and we had to refill it. Well, we thought that there was still air in the system and didn’t think of anything. However, we have had to refill several times and are therefore yesterday again to the workshop. The mechanic now thinks that the cylinder head is broken. The cooling liquid goes probably into the combustion room, because it does not drip out anywhere. In the oil however no water can be seen. From the exhaust comes also no noticeable smoke. It is strange that the cooling liquid only disappears from the timing belt change. Before that we only had to look after it before travelling and before the W inter. But we never had to refill much. Can it have anything to do with the timing belt and water pump change? How much does an exchange of the cylinder head seal or the cylinder head usually cost? I don’t have a good feeling at the workshop now and want to know if the costs are attached there or not. Thank you for your help! Greeting Anna