E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 07-12-2012, 05:20 PM   #1
Mctwist77
Registered User
 
Join Date: Apr 2010
Location: USA
Posts: 172
My Ride: '99' BMW 323i
A/C lukewarm at idle, Cold when car is moving, Aux fan is on, new compressor. ?

Hey just like the posting says, A/C isnt really cold at idle when its really hot outside but then it gets cold once Im moving. The fan is spinning at idle, it just doesnt seem like its spinning hard enough. I'm not sure. The car is a manual by the way. Any ideas? Thanks
__________________
Photobucket
BMW 323I 5 Speed
Mctwist77 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 07-12-2012, 05:22 PM   #2
Mango
A full five stars, son
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,827
My Ride: M54B30
It's normal for the A/C to be colder at speed. but not drastically colder to where you're sweating at idle. You RTECS yet?
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS
Mango is offline   Reply With Quote
Old 07-12-2012, 05:23 PM   #3
jdny516
Registered User
 
Join Date: Jun 2008
Location: Arlington, VA
Posts: 1,091
My Ride: E39 ///M5
check fuse on the fan? doubt its compressor
__________________
National Capital Chapter #465420
2000 ///M5 ///M Registry
Oxford Green Metallic II (430) | Caramel Nappa Leather (M3CR) | Brushed Aluminum Interior |
Tuning Tech Frank Smith Tune
Tuning Tech IAT Kit
SuperSprint Headers
SuperSprint X-Pipe
Eisenmann Race 4x83mm
DINAN Front Strut Brace
Storm Motorwerks Products

My Progress Thread

2000 323Ci | TiAg | Gray | 5MT | SOLD
jdny516 is offline   Reply With Quote
Old 07-12-2012, 05:28 PM   #4
Mctwist77
Registered User
 
Join Date: Apr 2010
Location: USA
Posts: 172
My Ride: '99' BMW 323i
@Mango: Whats RTEC?
@JDNY516: Where is the fuse on the fan? In the little electronic box on the front?

Thanks
__________________
Photobucket
BMW 323I 5 Speed
Mctwist77 is offline   Reply With Quote
Old 07-12-2012, 05:29 PM   #5
smolck
Registered User
 
Join Date: Dec 2007
Location: Birmngham, AL
Posts: 1,059
My Ride: 2004 ZHP Sedan
Assuming your aux fan is properly working, it is likely the suction side of your compressor not getting the job done at low speed. Time for a new compressor.
__________________
Check out my BMW Blog
http://smolckbmw.blogspot.com/


Check my Youtube channel for DIY's and fun stuff
http://www.youtube.com/user/flipfinish?feature=mhee
smolck is offline   Reply With Quote
Old 07-12-2012, 05:31 PM   #6
jdny516
Registered User
 
Join Date: Jun 2008
Location: Arlington, VA
Posts: 1,091
My Ride: E39 ///M5
Quote:
Originally Posted by Mctwist77 View Post
@JDNY516: Where is the fuse on the fan? In the little electronic box on the front?

Thanks
fuse box, i think its #75 or 76? there is a card in there with all the numbers and parts

You could check if there is enough power going to the fan as well
__________________
National Capital Chapter #465420
2000 ///M5 ///M Registry
Oxford Green Metallic II (430) | Caramel Nappa Leather (M3CR) | Brushed Aluminum Interior |
Tuning Tech Frank Smith Tune
Tuning Tech IAT Kit
SuperSprint Headers
SuperSprint X-Pipe
Eisenmann Race 4x83mm
DINAN Front Strut Brace
Storm Motorwerks Products

My Progress Thread

2000 323Ci | TiAg | Gray | 5MT | SOLD
jdny516 is offline   Reply With Quote
Old 07-12-2012, 05:31 PM   #7
Mango
A full five stars, son
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,827
My Ride: M54B30
RTECS= replace the entire cooling system
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS
Mango is offline   Reply With Quote
Old 07-12-2012, 05:32 PM   #8
jdny516
Registered User
 
Join Date: Jun 2008
Location: Arlington, VA
Posts: 1,091
My Ride: E39 ///M5
Quote:
Originally Posted by E46Mango View Post
RTECS= replace the entire cooling system
this could be an issue too haha. how many miles you got
__________________
National Capital Chapter #465420
2000 ///M5 ///M Registry
Oxford Green Metallic II (430) | Caramel Nappa Leather (M3CR) | Brushed Aluminum Interior |
Tuning Tech Frank Smith Tune
Tuning Tech IAT Kit
SuperSprint Headers
SuperSprint X-Pipe
Eisenmann Race 4x83mm
DINAN Front Strut Brace
Storm Motorwerks Products

My Progress Thread

2000 323Ci | TiAg | Gray | 5MT | SOLD
jdny516 is offline   Reply With Quote
Old 07-12-2012, 05:34 PM   #9
Mctwist77
Registered User
 
Join Date: Apr 2010
Location: USA
Posts: 172
My Ride: '99' BMW 323i
I just replaced the compressor about 500 miles ago. My entire cooling system has less than 10,000 miles on it.
__________________
Photobucket
BMW 323I 5 Speed
Mctwist77 is offline   Reply With Quote
Old 07-12-2012, 05:34 PM   #10
Mctwist77
Registered User
 
Join Date: Apr 2010
Location: USA
Posts: 172
My Ride: '99' BMW 323i
The only thing I havent replaced is my AUX fan
__________________
Photobucket
BMW 323I 5 Speed
Mctwist77 is offline   Reply With Quote
Old 07-12-2012, 05:36 PM   #11
smolck
Registered User
 
Join Date: Dec 2007
Location: Birmngham, AL
Posts: 1,059
My Ride: 2004 ZHP Sedan
Quote:
Originally Posted by Mctwist77 View Post
I just replaced the compressor about 500 miles ago. My entire cooling system has less than 10,000 miles on it.
When you replaced it did it work properly? If so, then the aux fan is probably it. It is a variable speed fan, and might not be getting up to speed.
__________________
Check out my BMW Blog
http://smolckbmw.blogspot.com/


Check my Youtube channel for DIY's and fun stuff
http://www.youtube.com/user/flipfinish?feature=mhee

Last edited by smolck; 07-12-2012 at 05:42 PM.
smolck is offline   Reply With Quote
Old 07-12-2012, 05:39 PM   #12
Mctwist77
Registered User
 
Join Date: Apr 2010
Location: USA
Posts: 172
My Ride: '99' BMW 323i
Yeah well my A/C worked fine before the compressor went out, I'm pretty sure I was getting cold air at idle. Im not getting warm air at idle, its a little cool but I feel like it should be cooler. Any recommendations on buying the fan assembly? I always buy from autohausaz, anything cheaper out there?
__________________
Photobucket
BMW 323I 5 Speed
Mctwist77 is offline   Reply With Quote
Old 07-12-2012, 05:42 PM   #13
smolck
Registered User
 
Join Date: Dec 2007
Location: Birmngham, AL
Posts: 1,059
My Ride: 2004 ZHP Sedan
Quote:
Originally Posted by Mctwist77 View Post
Yeah well my A/C worked fine before the compressor went out, I'm pretty sure I was getting cold air at idle. Im not getting warm air at idle, its a little cool but I feel like it should be cooler. Any recommendations on buying the fan assembly? I always buy from autohausaz, anything cheaper out there?
Junk yard would be cheaper. Or www.oembimmerparts.com
__________________
Check out my BMW Blog
http://smolckbmw.blogspot.com/


Check my Youtube channel for DIY's and fun stuff
http://www.youtube.com/user/flipfinish?feature=mhee
smolck is offline   Reply With Quote
Old 07-12-2012, 05:45 PM   #14
Mango
A full five stars, son
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,827
My Ride: M54B30
I saw a used compressor on eBay for $80 or something like that. The manufacturer is Nippondenso. Look up the part # on RealOEM and plug it into eBay. Have a pro (or Smolck) evacuate the system before you go tearing up the old compressor. You could go to jail for a very long time or be fined lots of dollars if you're caught venting crap into the atmosphere.
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS
Mango is offline   Reply With Quote
Old 07-12-2012, 05:48 PM   #15
smolck
Registered User
 
Join Date: Dec 2007
Location: Birmngham, AL
Posts: 1,059
My Ride: 2004 ZHP Sedan
Quote:
Originally Posted by E46Mango View Post
You could go to jail for a very long time or be fined lots of dollars if you're caught venting crap into the atmosphere.
Just curious, who do you think goes running around peoples garages in a residential neighborhood looking for these "phantom gassers". C'mon, those laws are in place to dissuade shops from doing stuff without the proper licensing (and taxes associated with them) to generate revenue. Plus, if it was such a big deal, people with A/C systems that fail and vent gas even without them knowing would be subject to fines.

The amount of damage to the ozone from a can of r134a is less than the can of Aqua Net my granny uses to keep her beehive nice and tall.

And again, when topping off only, you aren't venting gasses.
__________________
Check out my BMW Blog
http://smolckbmw.blogspot.com/


Check my Youtube channel for DIY's and fun stuff
http://www.youtube.com/user/flipfinish?feature=mhee

Last edited by smolck; 07-12-2012 at 05:50 PM.
smolck is offline   Reply With Quote
Old 07-12-2012, 05:51 PM   #16
Mctwist77
Registered User
 
Join Date: Apr 2010
Location: USA
Posts: 172
My Ride: '99' BMW 323i
No worries, I do all my work on an Air Force base and they do all that for you with there magic machine
__________________
Photobucket
BMW 323I 5 Speed
Mctwist77 is offline   Reply With Quote
Old 07-12-2012, 05:53 PM   #17
Mango
A full five stars, son
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,827
My Ride: M54B30
Quote:
Originally Posted by smolck View Post
Just curious, who do you think goes running around peoples garages in a residential neighborhood looking for these "phantom gassers". C'mon, those laws are in place to dissuade shops from doing stuff without the proper licensing (and taxes associated with them) to generate revenue. The amount of damage to the ozone from a can of r134a is less than the can of Aqua Net my granny uses to keep her beehive nice and tall.
Just because nobody is looking doesn't make it OK. Just a personal choice.
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS
Mango is offline   Reply With Quote
Old 07-12-2012, 05:54 PM   #18
smolck
Registered User
 
Join Date: Dec 2007
Location: Birmngham, AL
Posts: 1,059
My Ride: 2004 ZHP Sedan
Quote:
Originally Posted by Mctwist77 View Post
No worries, I do all my work on an Air Force base and they do all that for you with there magic machine
I remember when my bro in law was at Ft. Campbell. We had a ton of fun working in those base auto shops. Everything you could ever want all available for us to use. If I wasn't so fat and old, I'd enlist for just that perk.
__________________
Check out my BMW Blog
http://smolckbmw.blogspot.com/


Check my Youtube channel for DIY's and fun stuff
http://www.youtube.com/user/flipfinish?feature=mhee
smolck is offline   Reply With Quote
Old 07-12-2012, 05:54 PM   #19
smolck
Registered User
 
Join Date: Dec 2007
Location: Birmngham, AL
Posts: 1,059
My Ride: 2004 ZHP Sedan
Quote:
Originally Posted by E46Mango View Post
Just because nobody is looking doesn't make it OK. Just a personal choice.
You could say the same thing about speeding, drinking and driving, drugs, or anything else. Of all which are MUCH more dangerous (and common) than venting a tiny bit of r-134a.
__________________
Check out my BMW Blog
http://smolckbmw.blogspot.com/


Check my Youtube channel for DIY's and fun stuff
http://www.youtube.com/user/flipfinish?feature=mhee
smolck is offline   Reply With Quote
Old 07-12-2012, 05:56 PM   #20
Mctwist77
Registered User
 
Join Date: Apr 2010
Location: USA
Posts: 172
My Ride: '99' BMW 323i
Haha yeah they have saved me a lot of money and time. I'm just getting in, finally graduated college.

As for the fans, I need a pusher or a puller fan? Since I have a manual I only have one fan and its the pusher right?
__________________
Photobucket
BMW 323I 5 Speed
Mctwist77 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 05:50 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use