Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E53 (1999 - 2006)

X5 E53 (1999 - 2006)
The X5 SAV Forum

Reply
 
Thread Tools Display Modes
  #1  
Old 06-21-2010, 08:57 AM
rockyj rockyj is offline
Registered User
Location: Houston
 
Join Date: Feb 2006
Posts: 9
Mein Auto: 2002 X5
AC High Pressure Line Frozen

Did a forum search and found two threads with similar issues but no resolution: cold air stops blowing out of the front vents. My daughter's 2002 X5 3.0 has the same issue (FYI, posted the below on Josh's thread). Around town the AC works great. After about an hour on the highway at speed, cold air stops blowing out vents. She arrived in town on Saturday after a 3 hour drive. The AC stopped blowing after one hour on the road. I had her leave the car running and here is what I found out: the compressor was working; the condenser cooling fan was working; the high pressure line after the high pressure switch going into the cabin was frozen.

After the car sat and the line thawed, the AC worked great again. This leads me to believe the evaporator temp sensor is bad. Meaning the compressor doesn't know when to cycle off and on. At highway speeds the compressor is most efficient plus there is no stop and start driving so the system doesn't have time to thaw out. If not the evaporator temp sensor, could it be the expansion valve? Don't think so because the AC works great all other times.

Oh, and I don't believe it is the Final Stage Resistor as I replaced it a couple of months ago when she had the above mentioned problem after a long trip. The AC stopped blowing on her drive back home but, then worked fine the next day and as she continued to commute around town on short drives.

Opinions please. If this is the culprit, is this sensor easy to change? The part is cheap enough ($33.95) but, would like to try to make sure this is the problem. Thanks.

Rocky
__________________
Rocky
2002 X5 3.0
2001 330i

Last edited by rockyj; 06-21-2010 at 09:01 AM.
Reply With Quote
Ads by Google
  #2  
Old 07-09-2012, 01:04 PM
msportster2001 msportster2001 is offline
Registered User
Location: Houston
 
Join Date: Jul 2012
Posts: 1
Mein Auto: 2002 X5 3.0
AC line frozen - was it the sensor?

Hi rockyj,

I have exactly the same problem with my E53 3.0i.

Did you ever find out if the evaporator temp sensor was the problem? If so, how difficult was it to change this part?

Thanks,
msportster
Reply With Quote
  #3  
Old 04-29-2013, 04:35 PM
Spring20 Spring20 is offline
Registered User
Location: New jersey
 
Join Date: Apr 2013
Posts: 81
Mein Auto: 2006 BMW X5
Make sure you dont have any restictions blocking your coil and its clean. If something is blocking the coil your lines will freeze over time
Reply With Quote
  #4  
Old 04-30-2013, 01:19 AM
flyace20 flyace20 is offline
Yippikayaaaay
Location: Australia
 
Join Date: Mar 2013
Posts: 54
Mein Auto: 2002 X5 4.4
I have exactly the same problem with my 2002 X5 4.4. Highway driving only. Can the freezing line cause damage do you think? A frozen line can build up a lot of pressure and blow out.
__________________
'02 BMW X5 LOVE THAT CAR
Reply With Quote
  #5  
Old 04-30-2013, 01:27 AM
Vman68 Vman68 is offline
Registered User
Location: Minnesota
 
Join Date: Apr 2013
Posts: 49
Mein Auto: 2013 328xi Sedan
Re: AC High Pressure Line Frozen

Quote:
Originally Posted by Spring20 View Post
Make sure you dont have any restictions blocking your coil and its clean. If something is blocking the coil your lines will freeze over time
+ 1. Clean your condenser by blowing it out with compressed air or using a garden hose with a spray nozzle.

Sent from BimmerApp mobile app
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E53 (1999 - 2006)
Today's Posts Search
Thread Tools
Display Modes

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



Forum Jump


All times are GMT -7. The time now is 07:42 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms