Hi all, couldn't miss an opportunity to share my experience, as I had pretty much similar situation, with leak and further overheating. In my case, replacing an intake manifold gasket helped (https://www.carid.com/engine-intake-manifold-gaskets/). They did the job at the service station, and I still do not fully understand how come coolant got into my exhaust then... But anyways, it is very unfortunate when such things happen. Hope you fixed everything, man, and now everything's going good!