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
  #1  
Old 05-23-2020, 09:56 PM
Member
 
Join Date: Jun 2012
Location: Australia
Posts: 39
Kshamm is on a distinguished road
3.0d only priming intermittently

Looking for some help as I am at my wits end.

I have an intermittent starting problem with my 2006 3.0d.
When trying to start I get “Fuel injection system” warning come up and you cant hear the fuel pump prime.

So I then turn it off and try again until I hear the fuel pump prime. Once it buzzes the warning doesn’t come up and the car starts straight away. Some times it starts first go and sometimes it takes twenty turns. It is not getting progressively worst and does not show any sort of pattern.

I changed out the fuel pump thinking that it was the culprit but no change. I swapped the horn relay with the pump relay and no change. I have a Foxwell scanner but it is not showing any codes that offer any help.

Can someone tell me what tells the fuel pump to prime or offer any other suggestions to try?

Thanks
__________________
2006 x5 3.0d
Reply With Quote

Sponsored Links

  #2  
Old 05-24-2020, 05:25 AM
Member
 
Join Date: Jan 2013
Location: Finland
Posts: 468
Clavurion is on a distinguished road
When you talk about fuel pump do you mean in-tank pump or inline pump under the vehicle?

DDE activates the relay for fuel pumps.

https://www.newtis.info/tisv2/a/en/e...-pumps/hVkPC3B
__________________
E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
Reply With Quote
  #3  
Old 05-24-2020, 05:42 AM
Member
 
Join Date: Jun 2012
Location: Australia
Posts: 39
Kshamm is on a distinguished road
Thanks for the reply. I presume it’s the in tank pump I can here prime. Does the fuel pressure sensor have anything to do with telling the pump to work?
__________________
2006 x5 3.0d
Reply With Quote
  #4  
Old 05-24-2020, 06:13 AM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 3,331
wpoll will become famous soon enough
There are two electric fuel pumps on the M57TU 3.0d - one in the tank (as for the petrol E53 models) and another in the fuel line immediately after the tank, just before the fuel filter. The in-line pump actually looks a little like the fuel filter but the giveaway is that it has an electrical connector on it....

https://www.newtis.info/tisv2/a/en/e...l-pump/EF7Xpz7

Actually, there is a third electric fuel pump - for the auxiliary heater. Not relevant but just sayin'
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
Reply With Quote
  #5  
Old 05-24-2020, 06:22 AM
Member
 
Join Date: Jun 2012
Location: Australia
Posts: 39
Kshamm is on a distinguished road
Yes I am aware of the three pumps. It’s the in tank pump that does not prime every time, but as soon as you can here it it ends up starting.
__________________
2006 x5 3.0d
Reply With Quote
  #6  
Old 05-24-2020, 06:23 AM
Member
 
Join Date: Jan 2013
Location: Finland
Posts: 468
Clavurion is on a distinguished road
The in-tank pump (this was renewed?) is only needed when tank is below ~1/3 (transfers fuel from other side of the saddle tank. Inline fuel pump (Nr.1 in diagram) is what you can clearly hear when you turn on ignition. There is no sensoring for supply pressure on these with M57N engine so the only code it could give is for low rail pressure when there is not enough supply feed for HP fuel pump. DDE activates fuel pump relay feeding both electric pumps when you turn on ignition to pos. 2 and keeps it activated as long as engine is running.

https://www.realoem.com/bmw/enUS/sho...diagId=16_0567
__________________
E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
Reply With Quote
  #7  
Old 05-24-2020, 06:52 AM
Member
 
Join Date: Jun 2012
Location: Australia
Posts: 39
Kshamm is on a distinguished road
Yes in tank pump replaced. So you do Not think the fuel pressure sensor has anything to do with it and I should replace the in line pump?
__________________
2006 x5 3.0d
Reply With Quote
  #8  
Old 05-24-2020, 07:14 AM
Member
 
Join Date: Jan 2013
Location: Finland
Posts: 468
Clavurion is on a distinguished road
Quote:
Originally Posted by Kshamm View Post
Yes in tank pump replaced. So you do Not think the fuel pressure sensor has anything to do with it and I should replace the in line pump?
Do you mean rail pressure sensor? It has nothing to do with fuel pump relay activation.
__________________
E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
Reply With Quote
  #9  
Old 05-24-2020, 11:14 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 5,977
andrewwynn is on a distinguished road
If the in tank pump doesn't spin every time it's almost certainly at fault. You can test this by measuring voltage with back feed pins or poke through the insulation at the pump when you first try to start.

If you get voltage no whirr 100% the pump is bad. If you don't get voltage it's almost certainly the pump relay.

Those are the only two options I can. Think of that will give you your symptoms. Loose wire somewhere could give you a non whirr but that won't auto correct from just key off key on.

You could proactively swap the pump relay and see if that cures the problem but if it's intermittent that might just leave you stranded somewhere
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #10  
Old 05-24-2020, 03:13 PM
Member
 
Join Date: Jun 2012
Location: Australia
Posts: 39
Kshamm is on a distinguished road
I have changed the in tank pump and the symptoms are still the same. I also changed the fuel pump relay and that did nothing.
__________________
2006 x5 3.0d
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 08:16 AM.
vBulletin, Copyright 2020, 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.