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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 12-24-2012, 07:15 AM
davewoolley davewoolley is offline
D Woolley
Location: WPB Florida
 
Join Date: Jul 2012
Posts: 145
Mein Auto: 05-645 / 14 435I
Alternator

Does the same apply with my 645 as a normal car? Take off positive cable on battery if car dies its the alternator?
Thanks
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  #2  
Old 12-24-2012, 04:54 PM
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Yorgi Yorgi is offline
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Mein Auto: '04 M3 / '06 650i Cab
I would not do that to test the alternator. There are much better ways to test, and the proper tests are free at your local AutoZone / Pep Boys etc...
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Old 12-24-2012, 05:03 PM
HerbP HerbP is offline
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+1
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Old 12-24-2012, 05:05 PM
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dolfan13 dolfan13 is offline
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Location: lexington,ky usa
 
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Mein Auto: 545i
I have a 545i same alternator but JFYI theses units seem to go bad with the characteristic of on or off.At least mine was the case and I found a very long thread discussing this phenom.
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Old 12-24-2012, 05:11 PM
davewoolley davewoolley is offline
D Woolley
Location: WPB Florida
 
Join Date: Jul 2012
Posts: 145
Mein Auto: 05-645 / 14 435I
In the morning my car starts up and runs fine but after it warms up after driving around when I turn off than crank back up it runs so rough at an idle it almost cuts off but after start driving its fine, could this have something to do with alternator?
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