Hello Opel friends after you have helped me with tips already I have another question, recently bought an Omega 2.5 liter Bj 11.95 lost water but the cooling system did not have to replenish all 20-25 km of water. I changed the cylinder head gasket meanwhile but can not find anything striking in the seal, between the two cylinder banks under the injection unit lies a larger plate which is connected by two pipes with water gt and screw with approx. 12-14 with the block is screwed everything seems to have to come here somewhere the water loss can tell me someone how the plate is sealed so far can find no gasket Mfg Uwe