Heat always coming from vents?

Glenn90 · 08-13-2011, 11:29 PM

On a 95 degree day in Atlanta with the top down, I noticed heat pumping out of the air vents of my 2011 328i convertible, even with the blower completely off. I tried turning on the climate system and cranking down the temp all the way (60 degrees) and then turning everything back off, but still noticed a fairly considerable amount of heat coming from the vents.

This is kind of annoying. Common experience, or unusual? Any ideas for how to stop heat from coming from the air vents, short of actually turning on the A/C (which is completely ineffective with the top down on hot days, and creates a noticeable drag on engine power)?

OlivaresAnthony · 08-13-2011, 11:46 PM

I've noticed my car do the same thing.

EYE4SPEED · 08-14-2011, 03:01 PM

Do you have your temp setting switched to cold (blue)?

Glenn90 · 08-14-2011, 07:56 PM

Yep, that little horizontal thumbwheel between the center air vents is pushed all the way to the cold side.

I did reduce the heat coming from the vents somewhat, by ensuring all 4 were closed and by turning on the climate system, selecting just the topmost air distribution button (directing air to the windshield), and then turning it off.

Still, I remain a bit puzzled. In other (non-BMW) cars, when I turn the climate system to cool and turn off the fan, no hot air escapes.

W.WCherry · 08-14-2011, 11:09 PM

SomeRandomer123 · 08-15-2011, 05:20 AM

My mum's Kia Cee'd does this!! Lol I suppose it is engine heat escaping. Hmm, not noticed it from the 330d before but its fans aren't often off! Can't get to the 'd until the 18th so will probably post sometime around then!

ZheHbKa · 08-15-2011, 06:27 AM

press the air circulation button to be for interior only while the fan is on. once u turn it off it will stay that way

asuresh8 · 08-15-2011, 06:36 AM

Try adding Freon

08-13-2011, 11:29 PM	#1
Glenn90 New Member 0 Rep 5 Posts Drives: BMW 328i convertible Join Date: Aug 2011 Location: Marietta, GA iTrader: (0)	Heat always coming from vents? On a 95 degree day in Atlanta with the top down, I noticed heat pumping out of the air vents of my 2011 328i convertible, even with the blower completely off. I tried turning on the climate system and cranking down the temp all the way (60 degrees) and then turning everything back off, but still noticed a fairly considerable amount of heat coming from the vents. This is kind of annoying. Common experience, or unusual? Any ideas for how to stop heat from coming from the air vents, short of actually turning on the A/C (which is completely ineffective with the top down on hot days, and creates a noticeable drag on engine power)?
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08-13-2011, 11:46 PM	#2
OlivaresAnthony Colonel 101 Rep 2,095 Posts Drives: 2019 Toyota Tacoma TRD OR 4x4 Join Date: Nov 2009 Location: San Diego, CA iTrader: (6) Garage List 2019 Toyota Tacoma ... [0.00] 2015 BMW 535i [0.00]	I've noticed my car do the same thing. __________________ E90 325i\|Sparkling Graphite Metallic\|Steptronic\|Black Leatherette/Dark Burl Interior\|OEM Alarm\|35%Front/5%Rear Tint\|RD LED License Plate Lights\|Rear Fogs Activated\|Debadged\|Smoked Sidemarkers\|Blacklines\|Depo P90v2\|Matte Black Grille\|BMS PBX\|AFE Drop In\|Charcoal Filter Delete\|Air Scoops\| RM Silicone Intake Hose\| Magnaflow 14815\| 19" Avant Garde M310\|Continental DWS\|M3 Lip Spoiler
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08-14-2011, 03:01 PM	#3
EYE4SPEED Ex-Diesel Driver 63 Rep 2,000 Posts Drives: Audi SQ5 Join Date: Apr 2010 Location: West Coast... of Michigan iTrader: (22)	Do you have your temp setting switched to cold (blue)? __________________ FS: HRE Center Caps http://www.e90post.com/forums/showth...post13972317l]
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08-14-2011, 07:56 PM	#4
Glenn90 New Member 0 Rep 5 Posts Drives: BMW 328i convertible Join Date: Aug 2011 Location: Marietta, GA iTrader: (0)	Yep, that little horizontal thumbwheel between the center air vents is pushed all the way to the cold side. I did reduce the heat coming from the vents somewhat, by ensuring all 4 were closed and by turning on the climate system, selecting just the topmost air distribution button (directing air to the windshield), and then turning it off. Still, I remain a bit puzzled. In other (non-BMW) cars, when I turn the climate system to cool and turn off the fan, no hot air escapes.
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08-14-2011, 11:09 PM	#5
W.WCherry Lieutenant 35 Rep 419 Posts Drives: e92 Join Date: Feb 2011 Location: Charleston, SC iTrader: (3)	__________________ Performance \|Dinan Stage 3 Software\|Dinan IC\|Dinan OC\|UUC/Corsa Exhaust\|Koni FSD Shocks and Struts\|Eibach Spings\|Hotchkis Anti Sway Bars\|6MT\|Style \|Aero Lip\|Aero Rear\|M3 Spoiler\|BMW Gloss Black Kidney Grills\|BMW Aluminum Pedals\|BMW LCI Tail Lights\|HID Fog Lights\|25%Tint\|Advan AVS Model F7 19" Rims\|Lux V3 AEs\|Premium\|Sport\|Comfort Access\|
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08-15-2011, 05:20 AM	#6
SomeRandomer123 Colonel 307 Rep 2,612 Posts Drives: F30 328i Luxury - Sport Auto Join Date: May 2011 Location: Lancashire, North West England, UK iTrader: (0)	My mum's Kia Cee'd does this!! Lol I suppose it is engine heat escaping. Hmm, not noticed it from the 330d before but its fans aren't often off! Can't get to the 'd until the 18th so will probably post sometime around then! __________________ Gone: 2006 BMW E60 520d SE 6MT Gone: 2009 BMW E90-LCI 330d SE 6MT Current: 2012 F30 328i Luxury 8AT On Order: 2015 Audi A6 Avant Ultra, Black Edition (sorry!)
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08-15-2011, 06:27 AM	#7
ZheHbKa Lieutenant Colonel 78 Rep 1,793 Posts Drives: the Wind Join Date: Jul 2007 Location: NYC iTrader: (0) Garage List 2014 BMW 335 Xi [10.00]	press the air circulation button to be for interior only while the fan is on. once u turn it off it will stay that way __________________ 2014 F30 335 X-Drive \| 6-MT \| Alpine White/Coral Red \| ZMM ZDH ZDA \|
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08-15-2011, 06:36 AM	#8
asuresh8 Second Lieutenant 9 Rep 262 Posts Drives: 09 911 C4s Join Date: Jun 2010 Location: Seattle iTrader: (3) Garage List 2008 BMW 335i [0.00]	Try adding Freon
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