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
  #1  
Old 12-14-2018, 10:03 PM
cuban_bmwx5's Avatar
Member
 
Join Date: Feb 2011
Location: Toronto, Canada
Posts: 357
cuban_bmwx5 is on a distinguished road
Battery Issue

hey guys
so i have a issue with my X5 for some reason i have to boost it pretty much all the time i boost it on saturday then sunday i start it up fine then monday dead..
i got a new battery installed from bmw dealer and they did a test on the alternator they said it was fine so this issue got me stumped.. now what i want to know is a friend on mine has a e39 and he said he had the same issue some one told him it was the blower regulator he fixed it and now its fine. could that be my issue as well? just wanted to see if anyone else has dealt with this same issue.
thanks hope some one can help me out
(oh and the blower regulator is number 2 on the pic)
Attached Images
 
Reply With Quote

Sponsored Links

  #2  
Old 12-14-2018, 10:10 PM
Crowz's Avatar
Premier Member
 
Join Date: Aug 2017
Location: Alabama
Posts: 2,039
Crowz is on a distinguished road
There are soooo many things in an e53 that can kill the battery. Mine was the Bluetooth module (tcu). Unplugging it is a simple test to see if that's the issue on it but again there are tons of possibilities.

But if you have the Bluetooth unit its a good a place as any to start. Search the forum for what to unplug there are post with pictures of it.
__________________
Just BMW's - All cars and trucks was two pages long
1994 318is
1997 528i
2000 323i
2001 X5 3.0 auto
2005 X5 3.0 auto
2013 X5 xdrive35 Turbo
More are at my website

Aftermarket E53 Radio Install
Reply With Quote
  #3  
Old 12-14-2018, 11:10 PM
Member
 
Join Date: Dec 2014
Location: Canada
Posts: 35
Perrier is on a distinguished road
Put a multimeter on the battery and check its load while removing fuses out of the box.
Remove 1 fuse at a time and check for voltage variation. It will lead you to the culprit
__________________
2004 X5 3.0
Reply With Quote
  #4  
Old 12-15-2018, 01:03 AM
Member
 
Join Date: Jul 2016
Location: Menlo Park, CA
Posts: 809
Fifty150hs is on a distinguished road
Quote:
Originally Posted by Crowz View Post
There are soooo many things in an e53 that can kill the battery. Mine was the Bluetooth module (tcu). Unplugging it is a simple test to see if that's the issue on it but again there are tons of possibilities.

But if you have the Bluetooth unit its a good a place as any to start. Search the forum for what to unplug there are post with pictures of it.
The three most common causes of parasitic drain are the TCU, The Nav (if you have it) and the FSR. Pull one fuse at a time and you will find the cause. My money is on the TCU (fuse 74) as that seems to be the most common cause. Pull the fuse and see if that solves your problem.
Reply With Quote
  #5  
Old 12-15-2018, 10:51 PM
cuban_bmwx5's Avatar
Member
 
Join Date: Feb 2011
Location: Toronto, Canada
Posts: 357
cuban_bmwx5 is on a distinguished road
Quote:
Originally Posted by Crowz View Post
There are soooo many things in an e53 that can kill the battery. Mine was the Bluetooth module (tcu). Unplugging it is a simple test to see if that's the issue on it but again there are tons of possibilities.

But if you have the Bluetooth unit its a good a place as any to start. Search the forum for what to unplug there are post with pictures of it.
well i have aftermarket unit that has bluetooth my stock i dont think it came wit the bluetooth
Reply With Quote
  #6  
Old 12-15-2018, 10:57 PM
Member
 
Join Date: Jul 2016
Location: Menlo Park, CA
Posts: 809
Fifty150hs is on a distinguished road
Quote:
Originally Posted by cuban_bmwx5 View Post
well i have aftermarket unit that has bluetooth my stock i dont think it came wit the bluetooth
Check and make sue you don't.
Reply With Quote
  #7  
Old 12-15-2018, 10:58 PM
cuban_bmwx5's Avatar
Member
 
Join Date: Feb 2011
Location: Toronto, Canada
Posts: 357
cuban_bmwx5 is on a distinguished road
Quote:
Originally Posted by Crowz View Post
There are soooo many things in an e53 that can kill the battery. Mine was the Bluetooth module (tcu). Unplugging it is a simple test to see if that's the issue on it but again there are tons of possibilities.

But if you have the Bluetooth unit its a good a place as any to start. Search the forum for what to unplug there are post with pictures of it.
well i have aftermarket unit that has bluetooth my stock i dont think it came wit the bluetooth
Reply With Quote
  #8  
Old 12-15-2018, 10:59 PM
cuban_bmwx5's Avatar
Member
 
Join Date: Feb 2011
Location: Toronto, Canada
Posts: 357
cuban_bmwx5 is on a distinguished road
Quote:
Originally Posted by Fifty150hs View Post
Check and make sue you don't.
i am gonna have to check the original deck and see if it has bluetooth
Reply With Quote
  #9  
Old 12-15-2018, 11:00 PM
cuban_bmwx5's Avatar
Member
 
Join Date: Feb 2011
Location: Toronto, Canada
Posts: 357
cuban_bmwx5 is on a distinguished road
Quote:
Originally Posted by Fifty150hs View Post
The three most common causes of parasitic drain are the TCU, The Nav (if you have it) and the FSR. Pull one fuse at a time and you will find the cause. My money is on the TCU (fuse 74) as that seems to be the most common cause. Pull the fuse and see if that solves your problem.
my x5 did not come with nav stock .. my aftermarket unit does have one tho
Reply With Quote
  #10  
Old 12-15-2018, 11:43 PM
Crowz's Avatar
Premier Member
 
Join Date: Aug 2017
Location: Alabama
Posts: 2,039
Crowz is on a distinguished road
Quote:
Originally Posted by cuban_bmwx5 View Post
my x5 did not come with nav stock .. my aftermarket unit does have one tho
You can have Bluetooth without nav. Overboost's X5 is like that.
__________________
Just BMW's - All cars and trucks was two pages long
1994 318is
1997 528i
2000 323i
2001 X5 3.0 auto
2005 X5 3.0 auto
2013 X5 xdrive35 Turbo
More are at my website

Aftermarket E53 Radio Install
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 04:04 AM.
vBulletin, Copyright 2019, 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.