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@Marcio Nascimento, I don't like to put normal water even though it's demineralised due to the fact that the boiling point of water is much lower than the coolant one. This said, I believe that you have to add water on a routine, since the high temperatures will make it to boiling point and by doing so, transforms water into condensation and so forward it creates pressure inside the cooling system. I don't advise it, since it may be the main purpose for your reservoir to crack due to the increasing pressure inside it. (Compare it to a boiling stove) I have a 955 S, and mine even on traffic jam doesn't go over 85-90 degrees Celsius, so that may be one of the reasons why you are running it on water makes it to boil further. Notice that I am not aware of your country or climatic conditions. I live in Portugal, and during the summer, we have 30 so degrees Celsius. If the engine heats relatively fast, would say, water reaching 80© in 5-8 minutes would be normal, the oil takes around 12-15 minutes on my car, driving it normally. I completely agree with @wizard, don't mix water or rest of coolant you might have with some good coolant. It will destroy its properties and probably another tank. Even though I only use coolant, the pressure inside the tank is already too high! @TCokerjr68, I know.for me 110 © is too high, the material wears out faster. Me neither! When reaches 90©, I already wonder what might be wrong.
Either your car inst isolating the heat from the engine properly, which I find weird, or the coolant that you are using doesn't have the appropriate chemicals, and destroys the blending of the two parts tank while under pressure and heat. If you want to use a good coolant, that you use straight there, because is already blended with water, you may use motul inugel optimal (orange) or glysatin G40 (Pink). Other thing you should check is the tubes, 3, 8, 13, for breaks, compression against other parts that doesn't allow it to pass the fluid with the appropriate flow, or twists. If you have a photo, show me, so I can try to help you! No fumes or funny smell from the exhaust?
Hi Marcio, How is it going? Two things, Do you frequently check the coolant is on level? Its correct level as before or less? Do you fill it correctly, not more than the mark? Either is too much pressure from the coolant being too much, or you have heating escaping the engine bay, that heats the material over its specifications! Do you have a photo of the cracked coolant reservoir? Best, Dennes Second
Hello all, I am a long time lurker in this Forum and always read the forum to solve the problems in MY05 Cayenne S. First of all, I appreciate all members topics on this Forum, since they already helped me in the past. Sadly, two months ago, I got hit by a car while my car was parked. (repair that I am doing on my own, and will need help) When the transportation company took it to the dealer, apparently they let the keys fall to the floor and I start hearing a tickling noise inside the key fob and when pressing the buttons, the led starts blinking fast and doesn't operate correctly. I guess there is some condenser or resistor missing here. However, since I cannot find any reference to which one to use, can someone here who already performed this, give me a help? Regarding the first button being different from the oem one, I have already changed it after malfunction. Greatly appreciate, Cheers from Porto