It's as it says. I was running the car to see if it would keep a constant temperature. First thing I noticed was water spraying out of the windshield washer cap which I learned was the heater so I know that. So I started it again and ran it for about 10 minutes. It didn't overheat but first I noticed steam coming out of the rear vents. I noticed the temperature was turned to high and it was on so I turned it off and it stopped. A couple minutes later I noticed steam coming from the center console near the dial for the screen (I have a 2009 s600) and then water came out. Is another heater broken?
1) rain water - the screen drains are a joke and detritus also builds under the battery, then leaks in destroying the heater blower motor
2) AC condense not draining out on tot the floor beneath the car via the drain pipes from the bottom of the HVAC system sitting behind the dash
3) the Heater matrix or its pipes - inside the HVAC system is a baby radiator which is part of the engine cooling system - if this leaks at a pipe connector or the unit fails engine coolant will be pumped in tot he car and ruin everything - normally owners notice the hideous pungent smell and fix before its bad
from the sounds of it it engine coolant - if so it will have a distinct taste and smell and dry making a mess - the windscreen washer bottle has a stupid heater system that pumps engine coolant around to melt ice in the winter (every other manufacturer just tells the owner to put the correct concentration of washer fluid to keep the whole system working properly - not just melt ice 1" from the tubes after a 10 mile journey
good luck with any electrics ever working well again
1) rain water - the screen drains are a joke and detritus also builds under the battery, then leaks in destroying the heater blower motor
2) AC condense not draining out on tot the floor beneath the car via the drain pipes from the bottom of the HVAC system sitting behind the dash
3) the Heater matrix or its pipes - inside the HVAC system is a baby radiator which is part of the engine cooling system - if this leaks at a pipe connector or the unit fails engine coolant will be pumped in tot he car and ruin everything - normally owners notice the hideous pungent smell and fix before its bad
from the sounds of it it engine coolant - if so it will have a distinct taste and smell and dry making a mess - the windscreen washer bottle has a stupid heater system that pumps engine coolant around to melt ice in the winter (every other manufacturer just tells the owner to put the correct concentration of washer fluid to keep the whole system working properly - not just melt ice 1" from the tubes after a 10 mile journey
good luck with any electrics ever working well again
Ok I didn't think about that first one. I hope that's all it is lol. Probably isn't the second one because I know for a fact that there's no ac refrigerant in the system. So it can't get cold enough to cause condensation. number 3 is what I was thinking it could be. But I'm not sure what the part number is for the heater core. Don't want to buy the wrong part lol.
I was thinking. Since it was steaming, wouldn't it have to come from the engine cooling system. Does anyone know if any of the heater cores or anything else for that matter, comes close to HVAC tubing? specifically the ones for the rear since it wasn't happening in the front. And specifically the vents that are under the front seats for the rear passengers. Then for the center console, do the tubes for the rear climate vents that come out of the middle run under there?
you could try and track the pathway for the stupid washer bottle heater.... unless those heater pipes come from the interior heater system somehow - I don't see how that extra bit of fun is part of the issue.... (but very unlikely to be a coincidence) unless !!!! we have a real catastrophic failure on our hands and you have combustion gases leaking out at such a rate its popped the screen washer heater pipes and the heater matrix core in one nasty mess...
this is a pic I coloured in of a V8 heater system...
you could double check and try and work out which for the v12 here...
you could try and track the pathway for the stupid washer bottle heater.... unless those heater pipes come from the interior heater system somehow - I don't see how that extra bit of fun is part of the issue.... (but very unlikely to be a coincidence) unless !!!! we have a real catastrophic failure on our hands and you have combustion gases leaking out at such a rate its popped the screen washer heater pipes and the heater matrix core in one nasty mess...
this is a pic I coloured in of a V8 heater system...
you could double check and try and work out which for the v12 here...
If it did happen to break both of those, would possibly cause that?
Alright cool those diagrams help alot. This is what I see in one of them. Where I saw the steam coming from and the vents that go under the center console are connected. If that is a hole in the top of the vents under the center console then it could be leaking water somehow into those tubes. Yet to be determined on that one.
for cars with optional rear heater buttons - those bits sit in the centre console... where a second AC evaporator, another heater matrix and separate blower motor is hiding.... with their heater valve (that goes wrong) in the wing behind the right front wheel (on my RHD car)
