Air Con Outlet
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Great question because now that I think about it, I've never noticed the 'puddle' usually associated with this anywhere underneath the car, even during the hot summer months. I usually note that for any car I own ...
... (Also: moved to the "General Discussion" forum since this really isn't a maintenance question.)
... (Also: moved to the "General Discussion" forum since this really isn't a maintenance question.)
A little more info on this.
The great UK weather has actually been dry in my area recently so i now assume that any water on the garage floor is the air con discharge.
I have noticed that there is always a small pool of water under the exhaust tailpipes.(i have the twin sport tailpipes) It is clear water not engine coolant.
Can anyone confirm if i am correct ?
The great UK weather has actually been dry in my area recently so i now assume that any water on the garage floor is the air con discharge.
I have noticed that there is always a small pool of water under the exhaust tailpipes.(i have the twin sport tailpipes) It is clear water not engine coolant.
Can anyone confirm if i am correct ?
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Strange, all air con parts sits in the front so the drain should be there to....
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Short trips that don't get the exhaust system hot enough to evaporate the water in the exhaust gasses?
If it's the same as on the 981 then it drains into the belly pan. The reason I know where that was is because at one time I had problems with it occasionally sucking water back up. This made a sound like a child sucking up the remnants of a drink thorough a straw & the belly pan had to modified by the OPC to allow extra drainage at the point where the pipe entered the pan (Drilled a hole in it, followed by a larger hole when that didn't work). If you wait until a warm day & park your car on a slight slope facing downward/forwards on that slope & leave the air con running you should eventually see condensate run off over the front of the pan.
Thank you for the replies.
I usually do a 20 mile drive so I don't think it is exhaust condensation, although maybe it is a fluke of cold dry weather ?
Chilli, when you say belly pan do you mean as in Johans diagram above ( fig 4 ) ?
If so the air con water discharge should be just behind the front wheel if i am correct ? I see no water there ever.
As i mentioned i always have a small pool under the exhaust tailpipes, (towards the front of the car under the tailpipes / exhaust if that makes sense).
I usually do a 20 mile drive so I don't think it is exhaust condensation, although maybe it is a fluke of cold dry weather ?
Chilli, when you say belly pan do you mean as in Johans diagram above ( fig 4 ) ?
If so the air con water discharge should be just behind the front wheel if i am correct ? I see no water there ever.
As i mentioned i always have a small pool under the exhaust tailpipes, (towards the front of the car under the tailpipes / exhaust if that makes sense).
Johans diagram refers to a 986 whereas my previous 981 bore even greater similarity to the 982/718. The condensate on that instead of discharging via a pipe onto the floor emptied into the large under tray (runs pretty much under the entire front half of the car). You couldn't see the discharge pipe as it was hidden behind the tray. I never really paid too much attention other than when it started misbehaving & it took the OPC a few attempts to improve matters. Before even drilling the first hole they changed multiple components on the air con system as they seemed to think it was producing too much condensate (something about the evaporator). The tech apparently got pretty wet the first time he dropped the tray to investigate. Anyway the parts changed made zero difference & the problem remained, so after getting the OK from Porsche Germany they carried out the drainage hole modification & then in turn when that didn't really have the desired effect, carried out the act of enlarging it. It still never 100% cured the issue but did very much improve it so that it became an extremely rare occurrence. By then I'd got fed up of driving the 120 miles or so each way to the OPC for them to investigate (sometimes leaving my car there & having a loaner, then driving back a week or so later) & decided just to live with it. When each investigation ends up with you driving the best part of 250 miles & sometimes close to 500 miles & you have to keep repeating the exercise on multiple occasions it kind of wears you down. I can't recall the exact conversation, but it was actually the tech at the OPC that stated if I left it nose down on my slightly sloping drive with the air con running I'd eventually see condensate leaking out over the front of the under tray (I tried it, it did). It always struck me as slightly odd that condensate merely emptied into the tray instead of directly onto the floor but that was apparently normal. It was however (according to the OPC) not usually a problem & the kid sucking through a straw thing was something neither they or Porsche had previously encountered. If that was the case, then given how similar the 981 & 982 are in most respects they very possibly haven't changed it. I'm not 100% sure, but I think the pipe behind the front wheel you're possibly referring to runs up to the filler cap.
As Viffermike noted, you rather unusually don't get the little puddle forming underneath the car which is generally the norm with air con & it was exactly the same with my 981. This strongly suggests the 982/718 has the same set up as its predecessor. I was told with that vehicle that usually any condensate sits in the pan & either evaporates over a period of time or simply spills out during the normal course of driving.
Just a wild guess & maybe it's way off mark. But with the car sitting relatively low to the ground, could it be that the condensate line is considered less prone to blockage if it simply exits to the tray, instead of externally through the pan where it's exposed to mud & other road debris? Anyone else got any ideas?
I'm reasonably sure my earlier 987 Cayman left the A/C tell tale pool of water on the floor, but I couldn't swear to it. It never really registered as such & only really did so from the 981 because I had an air con problem. Which rather ironically, probably wouldn't have occurred if the pipe simply exited the vehicle in the usual manner. I'd still love to know exactly why my 981 had a problem as they never really did find out. The OPC as instructed by Porsche, more put a sticking plaster over it rather than actually cured it. All those visits & the best they came up with was to drill holes in the floor pan, I'm sure even I could have done that.
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Just a wild guess & maybe it's way off mark. But with the car sitting relatively low to the ground, could it be that the condensate line is considered less prone to blockage if it simply exits to the tray, instead of externally through the pan where it's exposed to mud & other road debris? Anyone else got any ideas?
I'm reasonably sure my earlier 987 Cayman left the A/C tell tale pool of water on the floor, but I couldn't swear to it. It never really registered as such & only really did so from the 981 because I had an air con problem. Which rather ironically, probably wouldn't have occurred if the pipe simply exited the vehicle in the usual manner. I'd still love to know exactly why my 981 had a problem as they never really did find out. The OPC as instructed by Porsche, more put a sticking plaster over it rather than actually cured it. All those visits & the best they came up with was to drill holes in the floor pan, I'm sure even I could have done that.
I i remember correct on 986 its only the tubes from the drip pan under the top thats long, the rest are short ones.
The air con tube could cause issues with water under the passanger seat if the top tray got full of mold.
The it spils inside the cabin
Seems like a strange design to leave a puddle in the pan to evaporate rather than let it drop to the ground. I would be concerned that corrosion would be imminent - or maybe mosquito breeding. Your guess about concern for blockage is as good as any I can imagine.
Small amounts of water dripping from the tailpipe after a cold engine start up can be considered as totally normal & yes it does affect mine. If the car only gets used for short journeys then you may see a little more. So long as you aren't seeing very large amounts of water then you shouldn't worry.
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