Did the issue with the air vents blowing hot ever get resolved?
 

I've read complaints about it on this forum for the brz/frs.

Does any one know what causes this? I do not remember my older cars (pre-2000) having this issue. The outside air always blew in cool, but my newer cars (post 2005) are warm/hot air.

Did something change in car design? Seems to affect all the various makes I've had experience with. Why won't they change it back!!

Apologies in advance if this has been resolved in a previous thread. I did do a search although admittedly, not a very thorough one.

I believe that is something you would see on the next model year or later, if ever.

It has been resolved! Turns out there's a button in the middle of the right-most knob that makes it blow cold air. :D

I kid, I kid. Smart-ass answer aside... no, there's no fix for this. Since I've started driving back in the early 90's,I've been in cars where the cold setting is almost as good as AC, and others where it's only marginally warmer than outside air... but none have been as bad as the 86/ BRZ. I'm guessing it's just a quirk of design. Personally, I haven't noticed it getting better or worse over the years; I guess we just drew a bad hand with this design. Maybe the only way they could work out how to get power to the rear wheels was by routing the exhaust through the air-ducts... who knows.

It isn't an issue, its an intensional design, you can change it by the a/c controls.

For this the Miata is infamous.

Here's the Miata cause and solution. It may or may not be related to our problem:

http://www.miata.net/garage/heater_cable.html

When I beat on my car it smells like nail polish not sure why

All you have to do is hit the recirculate air button on the left knob.

+1 the guy above me ^^
recirculate instant fix.

Subaru thing
 

I don't know if this is related, but there is a known gremlin with some WRX's (and other Impreza variants) that is similar. The driver side foot vents always blows hot, unless the AC is on. I have not heard of a TSB or a real fix. Lots of Subaru DNA in the FR-S / BRZ twins, I guess.

pftt u think thats bad i got smoke coming outta my vents when turning air on.

I used to notice it a lot more. I think the more I broke in the car the better it got. Now it shoots out warmish-cool air, but it's also 90 degrees here everyday.

Hm.... I found the air coming from the vents was much warmer with the recirculate air ON (which was on from the dealer). My problem with the air from the vents improved when I turned it OFF.

with the air controls off I turned the temperature control all the way to the left (cold, far right knob) and the warm air stopped.. I don't know if something is still activated when ALL of the buttons are off but it mysteriously worked..sorry if that sounds stupid.

I've had 105+ degree weather here and the A/C works great. Set it on recirc first. I think if the car sits in the heat for awhile the vents get warm. Once the A/C is going they cool off. This has happened with several of my cars.

I have a 2000 Impreza 2.5RS. With the climate controls off and the circulator thing pulling from outside it always blows in a gentle breeze of air. If the controls are set to hot, warm air blows in. If it's set to cold, cool air blows in. If I set it to recirculate, no air blows in.

If I were to guess this is the same issue.

ok, clarification: I meant warm air blowing when you are NOT running the AC and just trying to bring in fresh air from outside. My older cars would still provide cool(er) air from outside. Seems like the newer cars I've been in blow warm air regardless.

That certainly looks like a design flaw...and they made the end user correct it?


They understood you, they're just being funny with the answers. I too like cold air without using the compressor, and when winter comes I would not like warm air when I'm expecting cold. Winter is "no compressor" time in Texas.

I've noticed that also, and I guess it has to do with the air /pollution filter (don't know how it's called)
In ancient cars, the air used to come straight from the exterior through very simple pipes. Actually, I can remember a couple of models in which you could see the exterior through the vents. Nowadays almost every car has air filters, wich are located in the engine bay. These boxes become hot, hence the hot air.
I'm not sure this is the correct explanation, but it makes sense to me.

That's normal. Nothing to worry about

LOL, "There's your problem... Your exhaust pipes are hooked up to your air vents!" Haha, I can just imagine it shooting flames out my air vents as I lift off the throttle. And then a Japanese engineer saying in a technical video, "We wanted to give this car a more exciting feel so we channeled the intake and exhaust inside the cockpit." :lol:

pfft, boys... worse than kindergarteners...



THe air in my post-2005 car starts out cool (when the engine is cool) but it gets hot and stays hot soon afterwards

I guess I'll just learn to deal with it, sigh.

or you could roll down the windows? My 95 eclipse and 05 evo both blew warm air with no ac and the recerc air on.

I think its the heat from the engine coming through the firewall.

you would have a bigger problem if that was the real issue.

as we have discussed with the exhaust temps, I think this engine runs extremely hot as well. I've noticed that on a couple of occasions that the interior gets extremely hot and the air that comes out is like having the heat on. There must be lots of heat soak with the air pipes. It's a bit annoying when it's 90 degrees everyday.

Lots of helpful info in this thread. I am sure no one thought to use the AC or roll down the windows...

The short answer to OP's question is no. Slightly warmer air then the outside blows in. There has been no fix and I don't expect there to be one.