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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 6 Series > E63 / E64 6 Series (2003 - 2013)

E63 / E64 6 Series (2003 - 2013)
The E63/E64 BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 07-01-2013, 08:21 PM
Bjmyles123 Bjmyles123 is offline
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Location: Marietta ga
 
Join Date: Jul 2013
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Mein Auto: 2004 645ci
Alternator

Hey guys, I'm new to the forum. I live in Marietta, Ga and I just bought an 04 645ci with 61k on the clock. While driving home one night my service engine lights came on and also wierd lights on the dash. ABS light and battery light came on as well. I also noticed an erratic idle with some stumbling on acceleration. The mechanic said my alternator has a glitch and needs to be repaired. He also said that it may be causing the roughy idling. But we won't know until he replaces the alternator. I really love the car and hope the alternator fixes the problems
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  #2  
Old 07-02-2013, 06:34 AM
tampamark tampamark is online now
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Location: tampa fl
 
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Posts: 2,798
Mein Auto: 2006 650 convertible!!!
Welcome aboard, post some pictures, it is a rite of passage on this forum!

The mechanic is right in that all your issues are most likely electrical related. What you list are very common when battery and/or alternator are going. Hopefully he diagnosed the correct culprit. But if you are concerned that your car has a bigger issue I think you will be just fine.
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  #3  
Old 07-02-2013, 09:23 AM
Bjmyles123 Bjmyles123 is offline
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Location: Marietta ga
 
Join Date: Jul 2013
Posts: 17
Mein Auto: 2004 645ci
Thanks Tampamark. I really love the car. I feel confident that the mechanic is on
Point
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  #4  
Old 07-02-2013, 10:14 AM
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SeeYal SeeYal is online now
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Mein Auto: 2008 535i-2011 B7 Alpina
Do not wait to have this checked... Has to replace my alternator... It was producing too much juice... and killing the battery, not mentioning risk to any $$$ modules...Those cars really run on electricity...LOL!!!
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  #5  
Old 07-02-2013, 10:31 AM
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gregb gregb is offline
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Location: Marietta, GA
 
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Posts: 967
Mein Auto: 2007 BMW 650 vert
Quote:
Originally Posted by Bjmyles123 View Post
Hey guys, I'm new to the forum. I live in Marietta, Ga and I just bought an 04 645ci with 61k on the clock. While driving home one night my service engine lights came on and also wierd lights on the dash. ABS light and battery light came on as well. I also noticed an erratic idle with some stumbling on acceleration. The mechanic said my alternator has a glitch and needs to be repaired. He also said that it may be causing the roughy idling. But we won't know until he replaces the alternator. I really love the car and hope the alternator fixes the problems
Congrat's and welcome to the fest! I live in Marietta as well and I've owned an '07 vert for a few years.

Happy to trade notes on local indie mechanics, so feel free to send me a pm.
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'07 650i vert, beige/jet black, sports & cold weather pkgs, comfort access, logic 7, sat radio, Miro M6 wheels (with Michelin super sports), M6 spare tire, tint, windscreen, triple resonator delete, m-tec v3 AE's bulbs, corner bulb delete and m-tec fogs
'11 Acura MDX Advance with Entertainment pkg for wife - no mod's '04 Acura TSX (daughter) and '12 VW GTI - Autobahn (son)
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  #6  
Old 07-02-2013, 10:50 AM
HerbP HerbP is offline
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Location: Georgia
 
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Mein Auto: 2005 645Ci & 2007 750Li
If the alternator is charging at all, it is probably the voltage regulator that is located inside of the alternator. The VR cost around 75.00, & takes around 1 hour to change.

Welcome Aboard!
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  #7  
Old 07-02-2013, 11:22 AM
Kevin Bowen Kevin Bowen is offline
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Location: Tampa
 
Join Date: Sep 2011
Posts: 39
Mein Auto: 2001 E39 & 2005 645 ci
Your alternator problem

It's your voltage regulator. You can buy one on ebay for $55.00. I did a write up with pictures and posted it on Bimmerforums. Just search my name "Kevin Bowen" and you will find it.
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  #8  
Old 07-02-2013, 03:30 PM
Bjmyles123 Bjmyles123 is offline
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Location: Marietta ga
 
Join Date: Jul 2013
Posts: 17
Mein Auto: 2004 645ci
Well guys the alternator took care of the electrical problems but
the rough idle I felt wasn't the rpm but the engine shaking. I also have
a busted motor mount. Is this common on these
cars?
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  #9  
Old 07-02-2013, 04:39 PM
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Yorgi Yorgi is online now
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Mein Auto: '04 M3 / '06 650i Cab
Quote:
Originally Posted by Bjmyles123 View Post
...I also have a busted motor mount. Is this common on these
cars?
I have not seen many people complain about failed motor mounts on the 6er but generally speaking motor mounts failing is a reasonably common problem on all cars, especially on powerful cars.
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  #10  
Old 07-02-2013, 05:04 PM
Bjmyles123 Bjmyles123 is offline
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Location: Marietta ga
 
Join Date: Jul 2013
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Mein Auto: 2004 645ci
Yorgi, i guess youre right. Its no problem because i just want it right. This is my first experience with BMWs. That 6 is an awesome car and a definite head turner. Will post some pics tonight
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  #11  
Old 07-04-2013, 05:38 PM
Bjmyles123 Bjmyles123 is offline
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Location: Marietta ga
 
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Mein Auto: 2004 645ci
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  #12  
Old 07-05-2013, 03:05 PM
tampamark tampamark is online now
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Location: tampa fl
 
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Mein Auto: 2006 650 convertible!!!
Good looking car!
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  #13  
Old 07-05-2013, 03:11 PM
Bjmyles123 Bjmyles123 is offline
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Location: Marietta ga
 
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Mein Auto: 2004 645ci
Thanks Tampamark.
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  #14  
Old 07-07-2013, 05:45 AM
Bjmyles123 Bjmyles123 is offline
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Location: Marietta ga
 
Join Date: Jul 2013
Posts: 17
Mein Auto: 2004 645ci
Ok guys, the mechanic replaced alternator and and motor mounts. This took away the vibration at idle and now the car drives and rides like a dream. He also warned me about the trust mounts with the bigger wheels. So I had him replace those as well. Drives like a new ride.
I will definitely recommend him to everyone in Atlanta.
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  #15  
Old 01-30-2014, 03:37 AM
SPESHALGIFT SPESHALGIFT is offline
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Location: Stone Mountain GA
 
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Mein Auto: BMW 740 il
Hey im looking for a good mechanic where is your guy located

Sent from my SPH-L710 using BimmerApp mobile app
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  #16  
Old 01-30-2014, 04:31 AM
Bjmyles123 Bjmyles123 is offline
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Location: Marietta ga
 
Join Date: Jul 2013
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Mein Auto: 2004 645ci
He is located in Alpharetta. Finneys classic
Automotive repair. His name is Calvin Finney.
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  #17  
Old 01-30-2014, 05:03 AM
SPESHALGIFT SPESHALGIFT is offline
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Location: Stone Mountain GA
 
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Mein Auto: BMW 740 il
Thank You

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  #18  
Old 01-30-2014, 06:53 AM
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gregb gregb is offline
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Location: Marietta, GA
 
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Mein Auto: 2007 BMW 650 vert
I can also give a great recommendation for European Import Specialists in Marietta next to Dobbins ARB. They've done a couple of jobs for me and do great work at the right price.
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Regards, Greg


'07 650i vert, beige/jet black, sports & cold weather pkgs, comfort access, logic 7, sat radio, Miro M6 wheels (with Michelin super sports), M6 spare tire, tint, windscreen, triple resonator delete, m-tec v3 AE's bulbs, corner bulb delete and m-tec fogs
'11 Acura MDX Advance with Entertainment pkg for wife - no mod's '04 Acura TSX (daughter) and '12 VW GTI - Autobahn (son)
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  #19  
Old 01-30-2014, 08:15 AM
maybellineo maybellineo is offline
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Location: New Orleans
 
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Posts: 108
Mein Auto: 2005 645 Coupe
Quote:
Originally Posted by SeeYal View Post
Do not wait to have this checked... Has to replace my alternator... It was producing too much juice... and killing the battery, not mentioning risk to any $$$ modules...Those cars really run on electricity...LOL!!!
The same thing happened to me. They changed the battery first. A couple of weeks later my car completely killed coming off of the interstate. Every light on the dash lite up. We had to have it towed to the dealer. Then they said it was the alternator. I wonder if not changing out the alternator first is what is causing my battery to be slowly drained. I don't trust my dealer @ all. I know for a fact they hires 18 years old off the street that work on your 100,000 cars! Lol!


Maybellineo
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