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Old 08-29-2013, 03:01 PM   #51
mav1178
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Drives: 2005 Toyota Camry
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Quote:
Originally Posted by mike the snake View Post
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.
Quote:
Originally Posted by fistpoint View Post
.
If we add Mike the Snake's comment about his previous vehicles not blowing at all when fan is set to off, then we have 3 distinct variations of vehicles HVAC systems:

1) no air leaks in when fan is off
2) air "leaks in when fan is off, but temp is relatively equal to outside air
3) air leaks in when fan is off, temp is hotter than outside air
My counterpoint/counterargument to the posted "problem":

- S13 240SX: blows air inside with fans off and recirculation off
- P10 G20: same
- P11 G20: same
- 2005 Camry: same
- 1992 Infiniti Q45: same

The air "leaking in" is a combination of the location of the intake of the A/C system, as well as any leaks in the cabin whether it's windows or something else. I've never found this to be a problem for my BRZ, and frankly it's welcomed as makes the car more fuel efficient, all else equal.

-alex
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