Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Today's Posts New Posts

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-18-2010, 06:01 PM
orleandean's Avatar
Member
 
Join Date: Mar 2008
Location: VA
Posts: 14
orleandean is on a distinguished road
Auxiliary fan

I had my mechanic tell me my AC doesn't work because my auxiliary fan is not functioning. Question is.....is there a sensor in the fan that disengages the AC compressor when the fan is not working?
Reply With Quote

Sponsored Links

  #2  
Old 10-18-2010, 09:17 PM
tkasser's Avatar
Member
 
Join Date: Apr 2009
Location: PA
Posts: 70
tkasser is on a distinguished road
I don't know, but I just had the same problem. I just replaced the aux fan last week.
Reply With Quote
  #3  
Old 10-18-2010, 09:53 PM
amacman's Avatar
Member
 
Join Date: May 2008
Location: glasgow,scotland
Posts: 1,456
amacman is on a distinguished road
if the AC does not work at all , there will be other issues .
if it does not work whilst the car is stationary , the fan will be the problem , so the AC should still work when the car is moving due to airflow through the condenser .
I don`t think the fan controls the compressor in any way .
there was a very good thread recently on AC issues so try the search function at the top of the page and see what you find .
Reply With Quote
  #4  
Old 10-18-2010, 09:54 PM
Member
 
Join Date: Apr 2005
Location: X5world
Posts: 474
ArtMan is on a distinguished road
i made a thread that shows you the part its called the high pressure sensor. if you unplug this thing and your fan is good and you have your ac on max it should through the fan into high gear so if not then most likely you have a bad fan. and its a 300 dollar fix that you can do it yourself. just take plastic bumper off then lossen the metal bumper and the fan and the whole assembly will slide down and out. but do a search on here and youll see many threads
Reply With Quote
  #5  
Old 10-18-2010, 09:55 PM
orleandean's Avatar
Member
 
Join Date: Mar 2008
Location: VA
Posts: 14
orleandean is on a distinguished road
Did it fix the prob? They want a grand to do a job that will take half an hour with a part that is under $200. They quoted me $850 for the part!!!
Reply With Quote
  #6  
Old 10-18-2010, 10:00 PM
orleandean's Avatar
Member
 
Join Date: Mar 2008
Location: VA
Posts: 14
orleandean is on a distinguished road
The AC went out while we were on the road on a long trip. I,m thinking, as long as the aux fan is spinning, there is a sensor that tells the pressure switch (3wire) to go......
Reply With Quote
  #7  
Old 10-19-2010, 10:42 PM
Member
 
Join Date: Apr 2005
Location: X5world
Posts: 474
ArtMan is on a distinguished road
well, the problem is i drove around for a while till it got ot the point were on highway there was cold (not too cold but some) and at a red light there was hot air blowing......um also if you hit max ac button the fan should be on if not its not working but if yo look at the sensor like i said this is what happen to me.

1. aux fan twitched never turned on replaced 300 on ebay
2. it was said that if you drove around with no fan the pressure could have been too high which could result in freon being release. so i had the air vents form left ot right go codl to hot. so i paid 80 bucks to drain vacuum and refill but worked for a bit then still started with the ac only working when driving aroudn and would finally would turn on automatically so a memeber here mention weird sensor on the line from compressor to radiator ....
3. after much research online i finally found out that it s the high pressure sensor monitor and it was 40 bucks prom partsgeek.com
4. still have not replaced the sensor cuz its winter and you have to drain the system then also change teh ac resevor tank or expansion tank and replace sensor then vacumm system and refill...

but ive only spend 300 (some change) so like 330+80+40+30(can of ac refill) === about 480 so i think its better this way than dealer or and indy do it. since im replacing most the parts its realy easy.

oh also make sure the compressor is working too.....so turn ac off then you can see belt turning but the clutch on the compressor is not moving and when ac is on you should see it move spin so need to check that to make sure its no the compressor.
Reply With Quote
Reply

Bookmarks


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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 02:22 AM.
vBulletin, Copyright 2026, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.