Why Is Water Coming Out Underneath Of Nissan Altima 2006
Posted in Air Conditioning | Asked on Jan 22, 2012I just bought a 2006 Nissan Altima. It does run all right. However, sometimes I noticed there was water coming out underneath of my car after I parked the car. I called dealer and they said it’s normal because water is from AC compressor. Is it really normal? Even I didn’t turn on AC but I still noticed water coming out underneath a few times. Could someone help me? Thanks in advance!
It seems not coming out of exhaust pipe because the location is more like underneath the middle of windshield (but I don’t what parts are underneath of windshield, transmission? AC?).
I did turn on defrost. Thanks very much for your help!






There are 4 Answers for "Why Is Water Coming Out Underneath Of Nissan Altima 2006"
If it`s coming out of the exhaust pipes it`s quite normal, Check your oil, if it`s milky brown colored then you got a big problem.
Those times you noticed it but didn’t turn on the A/C, did you turn on the defroster? The Defroster uses the A/C to defrost and so it’s the same as turning on the A/C.
Water due to condensation after using the A/C is normal as the dealer stated, so I wouldn’t worry.
The next time you see the “water” make sure it is indeed water. Keep a paper napkin in your car. Next time you see the “water” coming from your car, put the paper napkin in the fluid.
If it’s water there won’t be any color.
Touch it to make sure it doesn’t feel “slippery”
If it feels slippery, but no color then it could be brake fluid or power steering fluid.
If the color is red, then it’s transmission fluid or radiator fluid. Hard to describe but transmission fluid will feel more oily.
If the color is greenish (the green fluid is not used much these days) then it’s the radiator fluid.
And of course brownish fluid is the oil.
It’s air conditioner condensate draining and it’s fine. Mine leaves a puddle on the garage floor every night when it’s warm out. The water means it’s keeping the humidity off of you, so she’s doing her job!
Due to the heat from the engine compartment and the cold from the a/c compressor basically busting up the freon or coolant in your a/c system it causes moisture to condense on the cold a/c components to the point that your a/c unit has a drain tube that feeds out on the driver or passenger side behind the front wheel. If you look at your home cooling unit you will see the same thing. In a parking lot with an incline, it will be normal on a really hot day to see a small line of water run from your car up to 30 feet or maybe more. Now if the water has an odd color or smell, then start checking fluids. Til then your dealer is being straight with you.