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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 11-26-2012, 12:33 PM
davewoolley davewoolley is offline
D Woolley
Location: WPB Florida
 
Join Date: Jul 2012
Posts: 145
Mein Auto: 05-645 / 14 435I
Rpm's

I have a 05 645, I don't have a lot if issues but I have one that when I start it up sometimes the rpm goes up and down and almost turns off.

Any ideas?
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  #2  
Old 11-26-2012, 05:43 PM
HerbP HerbP is offline
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Location: Georgia
 
Join Date: Jul 2009
Posts: 2,763
Mein Auto: 2005 645Ci & 2007 750Li
It could be from a thermostat going bad, or a purge valve problem. This usually happens on cold morning starts, & is not really a problem to worry about. When you start getting a code, you will find the culprit.

Good Luck!
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  #3  
Old 11-26-2012, 05:51 PM
davewoolley davewoolley is offline
D Woolley
Location: WPB Florida
 
Join Date: Jul 2012
Posts: 145
Mein Auto: 05-645 / 14 435I
I dosent happen in the morning but when I drive around then go inside somewhere and then when I start it up.
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