Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E65 / E66 (2002 - 2008)

7 Series - E65 / E66 (2002 - 2008)
Discussion pertaining to the flagship BMW here.

Reply
 
Thread Tools Display Modes
  #1  
Old 07-14-2013, 09:25 AM
mikewhomiko mikewhomiko is offline
Registered User
Location: orange county
 
Join Date: Jul 2013
Posts: 16
Mein Auto: 2004 bmw 745li
Exclamation Power moduel or what else can it be?

Hey there people ! thanks for taking the time to read my post.
I have a 2004 bmw 745li. Recently i started to notice a problem. the car was on and on park , i was just listing to music with a/c on and out of no where the park , dtc, and abs light came on then a few moments later the transmission failsafe went on also. so i shut the car off and then didnt want to start. made it seem like the battery was bad, so i change the battery and then its works fine again. 4 days later im doing the same thing and it happens again, i put a used battery on it so im like okay maybe the battery was bad so i put a new battery. i had my alternator tested out and it tested out perfectly. What can all this be? i was reading some threads and it was saying it may be the power supply moduel. its been 5 days since new battery still hasnt died on me. yesterday i drove about 40 miles and back so 80 in total. on the frwy the battery felt like it was givving out cause the speakers started switching and the rpm lights where dimming then the dynamic drive light when on. i got home and this morning it started up just fine. without that light. what can it be? thanks !
Reply With Quote
Ads by Google
  #2  
Old 07-14-2013, 10:05 AM
First_745Li's Avatar
First_745Li First_745Li is offline
Officially Welcomed to the 'Fest
Location: South FL
 
Join Date: Jun 2012
Posts: 2,194
Mein Auto: '03 745Li
Power moduel or what else can it be?

What battery did you put in there and did you register the battery? No where in your post did you state that you did this. Do a search for Battery or battery registration, register battery .. Terms like those.


Sent from BimmerApp mobile app
__________________


'11 328i
'07 Audi A8 (w/ 20,000 miles)
'03 745Li (sold)
'03 Acura TL-S
'02 Infiniti QX4 (sold )

For those like that love INK checkout join
Myinkedspace.com with my referral code and enjoy

http://myinkedspace.com/?ref=REF65900
Reply With Quote
  #3  
Old 07-14-2013, 10:14 AM
mikewhomiko mikewhomiko is offline
Registered User
Location: orange county
 
Join Date: Jul 2013
Posts: 16
Mein Auto: 2004 bmw 745li
Quote:
Originally Posted by First_745Li View Post
What battery did you put in there and did you register the battery? No where in your post did you state that you did this. Do a search for Battery or battery registration, register battery .. Terms like those.


Sent from BimmerApp mobile app
oh dang, i didnt know i needed to register battery , how do i do that ?
Reply With Quote
  #4  
Old 07-14-2013, 10:17 AM
mikewhomiko mikewhomiko is offline
Registered User
Location: orange county
 
Join Date: Jul 2013
Posts: 16
Mein Auto: 2004 bmw 745li
So i take it to the dealership, and might that be the problem ? thanks !
Reply With Quote
  #5  
Old 07-14-2013, 10:19 AM
First_745Li's Avatar
First_745Li First_745Li is offline
Officially Welcomed to the 'Fest
Location: South FL
 
Join Date: Jun 2012
Posts: 2,194
Mein Auto: '03 745Li
Power moduel or what else can it be?

You should definitely do the search on here then... It's some good reading..

1. To register the battery you'll need a laptop, ODBII cable and software loaded. - what kind of cable, software and how to do it well that you'll find in the results of the search..

Or

2. Find a euro independent shop that specializes in BMWs and they can do it for a fee.

Make sure you have the correct battery AGM type - ( again your search will help with this)
This car will not behave well to any battery. It's not a Honda or a Ford.


Sent from BimmerApp mobile app
__________________


'11 328i
'07 Audi A8 (w/ 20,000 miles)
'03 745Li (sold)
'03 Acura TL-S
'02 Infiniti QX4 (sold )

For those like that love INK checkout join
Myinkedspace.com with my referral code and enjoy

http://myinkedspace.com/?ref=REF65900
Reply With Quote
Reply

Bookmarks

Tags
alternator, battery, battery discharge, power supply moduel


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E65 / E66 (2002 - 2008)
Today's Posts Search
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 On



Forum Jump


All times are GMT -7. The time now is 03:44 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms