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Is the water from AC?

garyhe23

Member
Jun 16, 2019
49
5
US
Parked my car in the garage and left the AC on for a while (maybe about 20 mins). I saw some water leak from the center of the front under the car. I turned off the ac immediately and it seemed the leak from under the car stopped. Is it the water from AC? Is it normal? I didn’t see too much water from my Mercedes when ac is on. Does anyone observe the same issue when your ac is on in your garage? I could not see any difference between the leaked water and a pure water.
 

empiredown

Member
Mar 27, 2020
403
351
78642
Based on those figures, the compressor etc pieces of your system would only need to be at 58 degrees F or below to form condensation. They absolutely are. A good sign that your seeing more condensation than other vehicles, not knowing all the factors at play, as that means your heat pump and associated running very cool and very efficiently. Perhaps your other vehicles weren't.

 

David.85D

Active Member
Oct 29, 2016
1,350
1,121
USA
It’s normal.

I’ve seen some brands that direct the condensate to drip on the transmission (or other warm parts) for the cooling and to avoid the puddles. Not a choice on a Tesla...
 

spex

New Member
Aug 1, 2019
3
2
Richmond, CA
If it is water, it can only be condensation off your evaporator. There is no water used as a fluid anywhere on the vehicle. Condensation easily forms on your 32 degree evaporator while running A/C. Think of how you get condensation on the side of a glass with ice water in it. Except the evaporator has much more surface area and forcibly pushed new air (and therefore water) through it which causes a much higher accumulation of water. It has to go somewhere.
 

PatinCT

Member
Mar 24, 2020
111
52
CT
Definitely normal on all cars with AC... that being said, my new MY throws off a lot of water and a fleet could irrigate the Sahara and make vast new areas cultivatable.
 

dmh444

Member
Apr 2, 2020
97
66
irvine
My Y does the same thing. I showed the pictures to my SC advisor and he said it's normal.
 

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spex

New Member
Aug 1, 2019
3
2
Richmond, CA
You gotta figure that with the heat pump system there will be a cold evaporator somewhere in the system just as an effect of the heating condenser. You may even see some condensation under heavy heater use as well. Also, keep in mind that using the defroster uses both the heat and A/C. So even when you think there probably shouldn't be any condensation, there is.
 

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