Hi Kikemec, indeed my ka had a very strong reheating, and I never turned on the light. In fact, it has already had several and I find out because smoke comes out ahead of the windshield, but the light that ignites. I think I am going to install a needle temperature clock because surely that valve never worked, because a friend has a ka and tells me that when the temperature begins to rise that light begins to flash, it is turned on only when it is already overheated. I change the oring of that valve already stopped overheating and driving refrigerant, it only has the fault that I describe here, although I have not used it much because I do not know if you can damage something with this failure. You are right, my fear is that the butt is damaged, but my wife tells me that she checked the oil and is normal, but today I am going to look removing the cover that you tell me. Good idea, here the coils also check me in the electric workshops, but today it is the worker's day in Venezuela and everything is closed, so it will be tomorrow. Thank you all, I will inform you when checking everything they tell me .. !!!