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
  #51  
Old 10-31-2019, 08:14 AM
EODguy's Avatar
Member
 
Join Date: Jun 2018
Location: Saudi Arabia/Philippines/USA
Posts: 3,832
EODguy is on a distinguished road
Stuck float sending unit...swag


Sent from my SM-A730F using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course
Reply With Quote

Sponsored Links

  #52  
Old 10-31-2019, 08:58 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,819
andrewwynn will become famous soon enough
To know for sure you start with pulling up test six and see what values are reporting.

I had this problem when the sending unit we sending the wrong values. I have an instruction how to fix.

You maybe have a disconnected wire. More fuel is higher resistance I don't think the system is smart enough to realize that ∞ resistance means it's broken.
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote
  #53  
Old 11-01-2019, 08:55 AM
Member
 
Join Date: Aug 2016
Location: Brisbane, Australia
Posts: 268
talljames is on a distinguished road
Have now started monitoring test six. Seems to be going down ok as the needle moves down. This is a brand new sending unit.
__________________


2005 X5 4.4i M Sport
2003 X5 4.4i
Reply With Quote
  #54  
Old 11-01-2019, 11:06 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,819
andrewwynn will become famous soon enough
Reserve fuel problem

When you first replace a sending unit you have to reset the fuel system I think it's test 21. Look at test 6.0 v 6.1 etc. There is an actual vs buffered value and they should be similar. They will be quite off if a sender every had a bad value.

Also very important that both sides go down and they transition at the right points

Sent from my iPhone using Tapatalk Pro
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote
  #55  
Old 11-01-2019, 08:34 PM
Member
 
Join Date: Aug 2016
Location: Brisbane, Australia
Posts: 268
talljames is on a distinguished road
Can you do the reset at any point or best to fill the tank first. Thanks, will look into it.
__________________


2005 X5 4.4i M Sport
2003 X5 4.4i
Reply With Quote
  #56  
Old 11-01-2019, 09:06 PM
Member
 
Join Date: Aug 2016
Location: Brisbane, Australia
Posts: 268
talljames is on a distinguished road
By the way, I finally purchased a foxwell NT520 pro diagnostic tool.
__________________


2005 X5 4.4i M Sport
2003 X5 4.4i
Reply With Quote
  #57  
Old 11-01-2019, 11:28 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,819
andrewwynn will become famous soon enough
Quote:
Originally Posted by talljames View Post
Can you do the reset at any point or best to fill the tank first. Thanks, will look into it.

Any time. It removes the buffeting it can start at 50% or 20%. In my case the buffered amount was 2/3 of a tank so it wouldn't go higher than 2/3 on dash even when full. I reset the buffer and instantly gauge correctly read 1/1.
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote
  #58  
Old 11-02-2019, 10:42 AM
Member
 
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,609
cn90 is on a distinguished road
With a car at this age and mileage (I do not know your mileage), as you mentioned...

1. New fuel pump. Don't know your brand but best is Pierburg, which is OEM.

2. New fuel filter such as Mahle, Mann etc.

3. The siphon pump/sending unit, best is BMW brand.

Anything else may create a guess and time/effort lost in troubleshooting.
I understand that some people use aftermarket fuel pump (? Walbro) etc. and seem OK.
I use aftermarket parts all the time, such as NGK spark plugs, but when it comes to fuel system, I stay with BMW genuine supplier for a few reasons:

1. You can get stranded in the middle of nowhere ---> hotel cost, towing cost, inconvenience etc.

2. Time/effort lost + frustration etc.

3. It is not that expensive in the US, I can get a Pierburg fuel pump for US$145.
__________________
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
Reply With Quote
  #59  
Old 11-03-2019, 05:35 AM
Member
 
Join Date: Aug 2016
Location: Brisbane, Australia
Posts: 268
talljames is on a distinguished road
Thanks for the comments CN. Yes, sender unit I installed is genuine BMW. Fuel pump was installed by local mechanic so not sure if the sending unit on that side was replaced or just the pump. I havent replaced the filter. Just monitoring the fuel drop on test 6 at the moment to see if I can get past half way mark. Have spare gas in the back just in case. Will keep you posted. Need to check out my NT520 as well. cheers
__________________


2005 X5 4.4i M Sport
2003 X5 4.4i
Reply With Quote
  #60  
Old 11-03-2019, 07:40 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,819
andrewwynn will become famous soon enough
Watch your hidden 6 menu.

If the right side drops to zero get fuel immediately no matter what the left side says.
__________________
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 12:00 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.