Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
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 07-28-2019, 08:48 PM
upallnight's Avatar
Member
 
Join Date: Aug 2012
Location: Cook County
Posts: 7,280
upallnight is on a distinguished road
Quote:
Originally Posted by OnewireAT1 View Post
Thanks andrewwynn!

I think the compressor is the culprit at this point. But the shop should have seen this!?


Sent from my Frontal Lobe using Xoutpost.com
That will depend on what the customer/owner/you instructed the shop to do. Did you tell the shop to fix the AC system or just instructed them to add refrigerant to the system.

If you told them to fix the AC system and it still wasn't working when you took back ownership of the truck, you should have complained right then and there.

If you asked them to fill the system with refrigerant, that is what they did. I tell my friends to tell the mechanic what the problem they are having with the car, but never tell them to tell the mechanic how to fix the car.
__________________
2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
Reply With Quote

Sponsored Links

  #42  
Old 07-28-2019, 09:11 PM
Member
 
Join Date: Nov 2014
Location: SF Bay Area
Posts: 1,428
oldskewel is on a distinguished road
Quote:
Originally Posted by Fifty150hs View Post
On the low side? 50 psi is too high according to BMW.

Max on the low side is 2.2 BAR. https://www.newtis.info/tisv2/a/en/e...-check/Oke6MtR
Those numbers are assuming the compressor is running. The OP's compressor is not running, so it's a completely different story.

Clearly spelled out in my dissertation on page 3, but I understand if most people chose not to read that. Hopefully a few will learn from it.

As explained there, with the compressor off, there is a direct correlation between temperature and pressure if there is a saturated vapor in the system (i.e., both liquid and vapor coexisting, as they should). And that pressure-temperature relationship is shown in that inner red ring on the pressure gauges.

Since the indicated pressure is well below that which would be predicted by that relationship, I suggested (qualified by the fact that there seemed to be some doubt about measurements) that could be explained by a significant lack of refrigerant, meaning there is no liquid, only vapor.

... which comes to the same conclusion as AndrewWynn:
"50 seems waaay too low you are prob just low on gas."

__________________
2001 X5 3.0i, 203k miles, AT, owned since 2014
Reply With Quote
  #43  
Old 07-28-2019, 09:20 PM
upallnight's Avatar
Member
 
Join Date: Aug 2012
Location: Cook County
Posts: 7,280
upallnight is on a distinguished road
Quote:
Originally Posted by Ojai5 View Post
Sorry to thread jack however I didn't want to start ANOTHER ac thread.
2003 3.0
Mine stopped blowing cold, 95-100 degrees here everyday. I can't really dive my kids around.

Condenser turns-on
no codes
low side is around 50psi
I don't know high side

aux fan does not turn on with AC - I can activate it with my schwaben scan tool
aux fan turns on when I unplug the sensor wire
aux fan does not turn when car warms up

I'm stumped???
Would love some help.
You're stumped??? I'm stumped!!!! Never knew that a condenser is suppose to turn on.
__________________
2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
Reply With Quote
  #44  
Old 07-28-2019, 09:23 PM
upallnight's Avatar
Member
 
Join Date: Aug 2012
Location: Cook County
Posts: 7,280
upallnight is on a distinguished road
Quote:
Originally Posted by andrewwynn View Post
The shop should not have released the car without either working AC or a reason why.


Sent from my iPhone using Tapatalk Pro
__________________
2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
Reply With Quote
  #45  
Old 07-28-2019, 09:54 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,861
andrewwynn will become famous soon enough
I think he meant either the condensor fan or the compressor clutch but clarification is in order


Sent from my iPhone using Tapatalk Pro
__________________
2011 E70 N55 (me)
2012 E70 N63 (wife)
Reply With Quote
  #46  
Old 07-29-2019, 12:16 PM
Ojai5's Avatar
Member
 
Join Date: Apr 2014
Location: Ojai
Posts: 50
Ojai5 is on a distinguished road
Yes sorry typo, compressor clutch in engaged
I think my best best is to take it to a shop to get pressure reading from both sides.
I would guess that the fan isn't kicking on because of a pressure problem.
__________________
2003 X5 3.0 manual
2001 E39 M5
Reply With Quote
  #47  
Old 04-24-2021, 01:47 PM
upallnight's Avatar
Member
 
Join Date: Aug 2012
Location: Cook County
Posts: 7,280
upallnight is on a distinguished road
Quote:
Originally Posted by OnewireAT1 View Post
I have a 2004 BMW X5 E53 with no cold air when A/C is turned on.

1. I have had the system vacuumed and refilled
result: a hint of cold for a few minutes but then just ambient 80 degree air

2. ODBII - no faults

3. Compressor clutch engages and condenser fan works

4. Low pressure line was high on 1st canned R134a gauge check

Question: how would I determine if the issue is the Expansion Valve?


*NOTE: I have not tested with PSI hi/lo gauges yet
The only way to determine if you have a bad expansion valve is to see the low and high side pressure reading of the system when the compressor is operating.
__________________
2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
Reply With Quote
  #48  
Old 04-24-2021, 09:29 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,861
andrewwynn will become famous soon enough
X5 E53 Air Conditioning - all systems go but no cold air

+1

You need high and low side values. I typically get about 45/250 at 80 ambient.

If it is cold for a while and warms after ten minutes, that usually means low freon and it's "working too well" (and icing up the evaporator).

My scanner will show me the evaporator temp. That can be very helpful
__________________
2011 E70 N55 (me)
2012 E70 N63 (wife)
Reply With Quote
  #49  
Old 05-07-2021, 06:01 AM
Member
 
Join Date: Apr 2012
Location: SoCal
Posts: 1,690
g300d is on a distinguished road
Havent read the whole thread but its probably the compressor, variable displacement swashplate sticking in the flat position so no compression. Can be intermitent or constant.
__________________
04 X5 3.0i auto
03 X5 4.6is
Reply With Quote
  #50  
Old 05-07-2021, 09:52 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,861
andrewwynn will become famous soon enough
Quote:
Originally Posted by Ojai5 View Post
Yes sorry typo, compressor clutch in engaged
I think my best best is to take it to a shop to get pressure reading from both sides.
I would guess that the fan isn't kicking on because of a pressure problem.


You can't solve without knowing that information. You can rent/buy ac manifold set even if just for diagnostic readings before taking in.

Clutch engaging (click) doesn't mean it's grabbing; one method of failure is that the clutch isn't grabbing.

In any event the first step to diagnose ac is high and low readings while compressor is running. The low side pressure switch is not a simple on/off type unfortunately so if that fails it needs to be replaced.

My AC currently only works when I use my scanner to engage the AC compressor due to aux fan failure. Works fine once jump started and new fan is ordered.

A scanner that can run the aux fan should also be able to show the voltage on the pressure sensor and also manually engage the compressor (but I wouldn't do that until you have high/low readings)
__________________
2011 E70 N55 (me)
2012 E70 N63 (wife)
Reply With Quote
Reply

Bookmarks

Tags
a/c, air, air conditioning, e53, expansion valve

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 03:23 PM.
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.