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 Search Today's Posts Mark Forums Read

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
  #41  
Old 02-18-2020, 10:55 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
Put your hand on the valve you will feel the clicks. Set the temp to auto and say 70F. It should click every second or so
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote

Sponsored Links

  #42  
Old 02-18-2020, 11:07 PM
Member
 
Join Date: Apr 2019
Location: Boston, MA
Posts: 816
Effduration is on a distinguished road
Quote:
Originally Posted by X5M-ISH View Post
Today with some good weather, I decided to install a new heater core valve. The prior unit was an OEM/Bosch with the new one being a no-name auto parts store type.

So I call this tentatively fixed....
I have read other reports of how little coolant is lost during heater control valve replacement.

I have also read about durability problems with non-OEM replacement valves. I just rebuilt an OEM valve with $30 worth of new seals from Ebay. I suggest you rebuild yours as a spare. If you do, be sure to match up the specific part number as there are different seal kits.

I plan to install my rebuilt OEM valve and replace the aftermarket unit my car came with. I am getting uneven heat from the aftermarket unit.

Last edited by Effduration; 02-19-2020 at 10:16 AM.
Reply With Quote
  #43  
Old 02-19-2020, 10:04 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
It's at the very top of the coolant system. Similar when changing the aux pump I only had to left the hoses a couple inches and stop any coolant


Sent from my iPhone using Tapatalk Pro
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote
  #44  
Old 02-22-2020, 12:41 AM
Member
 
Join Date: May 2019
Location: Orion Arm
Posts: 123
X5M-ISH is on a distinguished road
Well, there was no change after swapping the heater control valve for a new unit. Still cold in the driver side for all vents. Now what?


To recap:
*watched the climate control system in INPA in real-time: both heater cores read the same temperatures
*unplugged the heater control valve and nearly melted to death while driving; driver side was super warm
*the OEM unit nor the new unit have changed the cold driver site temperatures
__________________
2006 E53 4.8is - Imola Red 2, Cream Beige all day er’ day
Reply With Quote
  #45  
Old 02-22-2020, 01:41 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
Sounds like you are getting outside air always but somehow only on the driver's side.

In my testing at steady state the heater cores should be between 130-150F.

If that is the case the problem lies within the dusting.

I think if you pull the MID you can get pretty good access to the Bowden cables and determine which one/s aren't doing their job.

Are you running your system on full auto and does the fan speed adjust appropriately when the overall cabin temp hits the set temp?
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote
  #46  
Old 02-22-2020, 07:19 PM
Member
 
Join Date: May 2019
Location: Orion Arm
Posts: 123
X5M-ISH is on a distinguished road
I'll do that: Pull the MID and observe. To answer your questions, I have never utilized that auto feature for the climate control nor have I paid attention to listen to fan speeds change. However, the fan speeds DO change when set on auto.


I wonder if there's a dead Audi that crawled into the left blower and died or something, blocking the heat.
__________________
2006 E53 4.8is - Imola Red 2, Cream Beige all day er’ day
Reply With Quote
  #47  
Old 02-22-2020, 11:25 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
The best possibly only way to know if the HVAC is working properly is set it to auto. Set to a level of say 70F. When cold the fan should blow pretty hard maybe 2/3 and drop down to a very low speed when close to set temp.

Check the system temp regulation by bumping the temp below cabin temp once it is at steady state. Eg. Bump temp to 65 once it's gotten to 70. The fan speed should rise and the vent output should get cold . Then bump up the temp up to say 75, the fan should drop to very slow and then quicky speed back up as the set temp gets farther from actual temp.

See if, when letting the automatic do its job you are still.getting the mismatch of temps left and right and plan to dig into the dash via the MID. I'm betting a cable or the control for it is broken.
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote
Reply

Bookmarks

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 09:30 AM.
vBulletin, Copyright 2024, 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.