Hello Opelfans, I noticed on the WE on the way back from Germany at the last refuelling, that the engine was running in a restless way, but nothing further thought about it, because when accelerating everything was normal. The weather was nice… (dark and heavy rain) so that I only saw at a traffic light just before home that comes out of the exhaust of strong, white smoke. So immediately on the right, the temperature indicator climbed into the red area, then directly out of the engine. As an alternative, I thought of having a new, used engine installed, the price would be the same as the ZKD change. My question now to the specialists: How high is the probability that the head has changed? There were 70Km highways from the tank to the traffic light on which the temperature indicator was quite normal. And, if I let the engine change, I run the danger that the bends would cause me Is it supposed to be an omega disease? Questions about questions, but I would like to drive my beloved omi even further, just not at any price. LG from Austria from the Uwe