Hey guys, I got a Seat Leon a year ago, but I’ve been having coolant problems since the beginning. I stayed on the highway twice – once because of a defective water pump and once because of a broken hose. The coolant either disappears without seeing anything in the engine compartment, or it collects under the balance tank. I’ve already changed the container. Since my heater doesn’t work (cold, warm, not working). ) and my windows fogged from the inside and left behind a greasy, light film, ChatGPT said that it could be due to the heat exchanger. Does anyone know about it? Thanks in advance!