I have to disagree here. My last 3 cars (Saturn, BMW 135i, and Nissan Cube) all did not blow air of any kind, hot or cold, when the system was OFF.
If I wanted outside, non-air conditioned air, I turned off the AC, turned the recirculating to outside, and the fan blew fresh outside air.
When the systems were off, no air came out from the vents.
My BRZ blows outside/warm air when the system is off. It blows harder the faster I'm going, so air from somewhere is getting rammed in.
My AC is having to fight against this warm air when it's on.
This does not seem right to me.
Friday morning I'm going to the dealership and I'll find out from them then.
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Originally Posted by DoomsdayJesus
Only if you do it after running the A/C or live in a humid climate. And if the fan's off, it won't do diddly.
No it doesn't reflect poor design, practically every damn car known to man does this because the intake for every car is behind the hood. So whether you get heat from the engine compartment or off the hood, you're going to get heat. So you can get some foam or rubber weather stripping and seal off the back of the hood if it really bothers you that much (which I did on my old SRT-4 and it worked great since the turbo was below the HVAC intake, but you're negating a great way for your engine bay to dump heat).
Also, dropping your windows below 50 isn't that awful. Your grandparents did it for the first half of their lives at least.
This is a dumb statement. There are TONS of valid reasons to use recirculate, especially A/C efficiency and reducing vehicle exhaust going into your lungs (which is really, really bad for you over time and in traffic, and is responsible for an awful lot of lung cancer behind cigarettes).
The A/C compressor is connected to your engine. Higher RPMs = colder air. Recirculating cold air is why we have central cooling in modern houses that doesn't cost an arm and a leg.
And doing it properly and switching off should fix it.
Seriously, I don't know how this many people are completely void of HVAC knowledge on cars. My CRX did it. My 626 did it. So did my SRT-4, 330Ci, and Outback. This isn't 400 level thermodynamics, it's common freaking sense. Unless you want to put an HVAC intake snorkel on your damn car, it's going to blow warm in the summer.
Man up.
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