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6 Series
The 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 11-03-2012, 10:45 AM
dawg1 dawg1 is offline
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Location: GA
 
Join Date: Dec 2006
Posts: 24
Mein Auto: 645ci
New Problem - Now car shutting off at idle

I recently had a thread going about my p0491 code. After learning that costs at least 1k to fix and still might not be resolved, I have a new and bigger issue. My car is cutting off at stoplights and such. Sometimes it will just cut off idling but more often cuts off right after idling when the gas is pushed. A few times it won't cut off entirely but kind of stalls and then jerks into going (after gas depressed). I don't think these are related but I do have that p0491 code and I think my transmission pan is leaking. Geez, I feel like my car is falling apart. Anyway, what would cause this cutting off of the car. Also seems to happen when the car is hot versus first thing/cold. I did just drive it today and had no stalling, no cutting off, etc. Contrast today to last night.. it cut off like 5 times in a single trip around town. I had to keep my foot on the gas peddle to try to keep RPMs up to keep from shutting down. It's not something I can reproduce anytime I want to though.
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  #2  
Old 11-03-2012, 04:57 PM
HerbP HerbP is offline
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Location: Georgia
 
Join Date: Jul 2009
Posts: 2,541
Mein Auto: 2005 645Ci & 2007 750Li
It sounds like you might have a vacuum leak somewhere. Check the 2 vent hoses that run from the front of the valve covers, to the front of the intake. These hoses/plastic pipes get very hard & brittle. Spray some starting fluid around your valve cover & intake are to see if the idle will change.


Good Luck
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  #3  
Old 11-04-2012, 08:40 AM
hipertec hipertec is online now
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Location: Southern California
 
Join Date: Apr 2005
Posts: 457
Mein Auto: 2005 645ci
Also look at the crankcase diaphram. Look at my past threads. There are two and when my was ripped, it would cause my car to die at the stoplight. The good thing it was an easy repair and part was less thank $40 for both.
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2005 BMW 645ci - DPE 3pc Forged Rims, Coilovers, Britalman full cat-back exhaust system, , K&N Air Filter, LUMMA Roof & Trunk Spoiler.
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  #4  
Old 11-21-2012, 04:39 PM
dawg1 dawg1 is offline
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Location: GA
 
Join Date: Dec 2006
Posts: 24
Mein Auto: 645ci
CCV valve on passenger side was torn. Replaced them both. The caps were hard to get off without breaking the brittle plastic but was able (the new caps didn't have the hose nipple). Car now idles fine! Anyway just wanted to provide an update and say thanks for the tips.
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  #5  
Old 11-21-2012, 05:52 PM
HerbP HerbP is offline
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Location: Georgia
 
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Mein Auto: 2005 645Ci & 2007 750Li
Good that it was something cheap & simple!
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