E39 Electrical Problem - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 5-Series (E12,E28, E34, E39, E60)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 11-10-2008, 04:04 AM   #1 (permalink)
n00b
 
Join Date: Jul 2008
Car: Nov 2002 525i Sport Touring
Posts: 8
Photos:
sema4 is on a distinguished road
E39 Electrical Problem

Hello

I have a weird E39 Electrical Problem. Brief history is that I installed a couple of amps & speakers & sub - car sounds really nice, but i think when testing it we maybe borked the voltage regulator on the alternator because now the lights flicker when the engine is on, even if the stereo isn't on.

So a weird thing started happening today - when I was in traffic the stereo stopped and then came on again, all lights went off & on, and as it came on again the DSC+T light came on (just like when you first start the car) and went off again. Almost like it reset.

My theory here is that the alternator wasn't producing enough voltage to support the activity of the electrical system, dipped below a certain voltage and caused a reset.

Odd thing though, was that actually with the stereo off the lights were still flickering a lot more than usual.

Just some specs -
Alternator is valeo 90Amp
Amps are both rockford fosgate punch P200-2 and P400-4

My plan is to get some car audio shop to fit a couple of power caps to the audio system, in order to make the power drains on the voltage regulator less extreme, and then fit the car out with a 110/120amp alternator.

Comments please!!

Thanks
sema4 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 5-Series (E12,E28, E34, E39, E60)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
2000 530d e39 electrical problem RSK2831 5-Series (E12,E28, E34, E39, E60) 7 03-25-2009 02:56 AM
E39 Electrical problem Phillip Visser 5-Series (E12,E28, E34, E39, E60) 7 02-06-2009 03:38 AM
E39 528I intermittant electrical issues johnex 5-Series (E12,E28, E34, E39, E60) 7 05-24-2007 10:50 PM
E39 Sporadic Electrical Faults rackandroll 5-Series (E12,E28, E34, E39, E60) 1 02-18-2006 09:33 PM
Electrical problem BLCKZC2001 3-Series (E36) 4 10-24-2005 10:34 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 08:01 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.