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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 01-28-2013, 04:17 PM
hellrazor1 hellrazor1 is offline
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has anyone replaced a coil??

came out the other morning started vehicle and it shaked like crazy!! check engine light came on. ttok to dealer and they said i needed #1 coil. has anyone ever replaced one and what is the difficulty rating to replace?
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  #2  
Old 01-28-2013, 04:19 PM
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alpinaman24 alpinaman24 is offline
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easy takes 10 min

i work on cars for a living so say 20 mins
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  #3  
Old 01-28-2013, 04:22 PM
hellrazor1 hellrazor1 is offline
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thanks for the info. i am pretty mechanically inclined so now just got to find one to replace it
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  #4  
Old 01-28-2013, 04:29 PM
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Actually it should take no more then 5 minutes
To change the #1 coil &only that long cause
you have to remove the engine covers

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  #5  
Old 01-28-2013, 06:57 PM
tatarogl tatarogl is offline
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See the spark plug DIY threads, it explains how to remove some of the coils if they are in a tight space. I didnt pay attention and actually broke one of them while forcing it into the hole. It was much easier after I followed the thread.
Im not sure, but I think you can run the engine and disconnect each plug by unplugging the coils one at a time. The one that doesnt affect the engine is the broken one usually. Alternatively connect to an OBD reader and google the code for the cylinder number.
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  #6  
Old 01-28-2013, 07:36 PM
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Rookie2008 Rookie2008 is offline
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Also make sure you don't have a vacuum leak it can also give you a rough idle.
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  #7  
Old 01-28-2013, 07:36 PM
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Quote:
Originally Posted by alpinaman24 View Post
easy takes 10 min

i work on cars for a living so say 20 mins
+1
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  #8  
Old 01-28-2013, 08:30 PM
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Originally Posted by Rookie2008 View Post
Also make sure you don't have a vacuum leak it can also give you a rough idle.
Do you know where all the vacuum lines are? I've replaced a few big ones but can't find any others besides three big ones and a couple little ones up front..

Also, I like the way your car looks, what kind of options did it come with? My car is a silver color, but not as light as yours.
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  #9  
Old 01-28-2013, 08:39 PM
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Only vac lines are on the pump, the elbow boot from maf and one of them goes from the plastic union (look on top of left/driver side wheel well area in engine bay) down to the left/ us driver side down to the pressure regulator on the fuel filter, the other i didn't follow to see where it leads
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  #10  
Old 01-28-2013, 11:49 PM
cmpcpro cmpcpro is offline
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Quote:
Originally Posted by 745iguy View Post
Only vac lines are on the pump, the elbow boot from maf and one of them goes from the plastic union (look on top of left/driver side wheel well area in engine bay) down to the left/ us driver side down to the pressure regulator on the fuel filter, the other i didn't follow to see where it leads
Thanks thats what I figured.. the other one goes to the flap on the exhaust.
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  #11  
Old 01-29-2013, 10:30 AM
hellrazor1 hellrazor1 is offline
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thanks for the info gents. does anyone have a link to a parts manual so i can get the part #
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  #12  
Old 01-29-2013, 11:58 AM
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You can get part numbers from realoem.com
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  #13  
Old 01-29-2013, 12:01 PM
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http://realoem.com/bmw/showparts.do?...04&hg=12&fg=05
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  #14  
Old 01-29-2013, 12:20 PM
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Fcpeuro sells them cheap also...
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  #15  
Old 01-29-2013, 12:22 PM
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alpinaman24 alpinaman24 is offline
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i stand corrected 5 minutes ....
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  #16  
Old 01-29-2013, 12:29 PM
hellrazor1 hellrazor1 is offline
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thanks all i will order from one of those sites tonight.
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