Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

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.

Reply
 
Thread Tools Display Modes
  #1  
Old 01-29-2013, 11:46 AM
leemyron leemyron is offline
Registered User
Location: corpus christi
 
Join Date: Jan 2013
Posts: 8
Mein Auto: bmw 645
misfires 1thru 6

i have a 2005 bmw 645, wt 99000 miles, i do have an oil leak coming from right and left valve cover but all of a sudden engine light came on and i have a code of mis fires in cylinders 1 thru 6, and runs real rough and lose of power. I hate to replace 6 coils or all eight and not be it, any suggestions what else to look for? and what are the cannisters on top of motor it has 2 one on each side of valve, do they have any thing to do with ignition coils, I did replace all spark plugs, and no change.
Reply With Quote
Advertisement
  #2  
Old 01-29-2013, 12:08 PM
HerbP HerbP is offline
Officially Welcomed to the 'Fest
Location: Georgia
 
Join Date: Jul 2009
Posts: 2,613
Mein Auto: 2005 645Ci & 2007 750Li
If you are having that many misfires, it sounds like a fuel issue. I would suggest to change the fuel filter, then see what happens. If you have access to a fuel pressure gauge, I would check the fuel pressure before & after the filter change. The next item of course would be the fuel pump.

The 2 canisters on each side of the engine are the Valvetronic Motors, for setting the timing of the valve train.

When did all of trouble's start? Did you possibly get some bad fuel? Did you mess with anything on the motor before all of these problems started? One easy thing to check would be to make sure that the oil filler cap is on securely. A bad vacuum leak can cause the motors to run terrible.

Good Luck!
Reply With Quote
  #3  
Old 01-29-2013, 01:24 PM
Medicus Medicus is offline
Marine
Location: Hawaii
 
Join Date: May 2012
Posts: 93
Mein Auto: 2005 BMW 645Ci
When my exhaust cam sensor went out I had misfires like that as well. If checking fuel doesn't work try pulling out a coil from one of the misfiring cylinder and check it for oil leaking into the spark plugs.
__________________
Reply With Quote
  #4  
Old 01-29-2013, 02:15 PM
leemyron leemyron is offline
Registered User
Location: corpus christi
 
Join Date: Jan 2013
Posts: 8
Mein Auto: bmw 645
thanks for your replies, no i had not messed with anything, everything was running fine the only thing that changed was when we had a cold front, coldest it got at night was maybe 38. it didnt like the change and in the morning start it would idle rough, shaky. once it warmed up and on the after work drive it would run fine, but all of a sudden it felt like someone pulled a hose or a plug, and its like driving a 4 cylinder. about a week after the cold front. I did pull a couple coils to see if there was a change, but did not notice a difference. did you replace the exhaust cam sensor yourself, is it accessible. but it sure seems like a bad vacuum leak of some sort, where else could i check for vacuum issues with out pulling the motor apart. thanks guys
Reply With Quote
  #5  
Old 01-29-2013, 09:01 PM
HerbP HerbP is offline
Officially Welcomed to the 'Fest
Location: Georgia
 
Join Date: Jul 2009
Posts: 2,613
Mein Auto: 2005 645Ci & 2007 750Li
If these hose on the link have cracks, it will cause the idle to be very bad. If the engine runs better when up to speed, it suggest a vacuum leak. Inspect theses hose very carefully, because they cost around 55.00 each. They become very brittle over time. There have been several revisions to the hoses, changing from item one, to items 2 & 3. I would also go ahead & change the fuel filter.

Good Luck!

http://www.realoem.com/bmw/showparts...59&hg=11&fg=15

Last edited by HerbP; 01-29-2013 at 09:02 PM.
Reply With Quote
  #6  
Old 01-30-2013, 04:07 PM
leemyron leemyron is offline
Registered User
Location: corpus christi
 
Join Date: Jan 2013
Posts: 8
Mein Auto: bmw 645
herbp--I will definitely check those hoses out, thankyou for the diagram, would you happen to have for the fuel filter, for the location.
Reply With Quote
  #7  
Old 01-30-2013, 05:20 PM
HerbP HerbP is offline
Officially Welcomed to the 'Fest
Location: Georgia
 
Join Date: Jul 2009
Posts: 2,613
Mein Auto: 2005 645Ci & 2007 750Li
Here are a few sources for the fuel filter. They are not cheap!

http://www.partsgeek.com/ss/?ssq=fue...05&model=645Ci

http://www.realoem.com/bmw/showparts...54&hg=16&fg=15
Reply With Quote
  #8  
Old 02-04-2013, 04:17 PM
leemyron leemyron is offline
Registered User
Location: corpus christi
 
Join Date: Jan 2013
Posts: 8
Mein Auto: bmw 645
well guys i broke down and dropped my car off at a local shop, to have a full diagnostic scan, originally quote of 98 bucks, they ran a smoke test for vacuum leaks, all was good, had mis fire of 1thru 7 this time, they went thru each coil and found only one yes one!! that was shorting out and causing all the mis fires, so i had a bad coil #3 which had I known that I would of replaced all coils, so all in all came out paying 200 bucks.. which i was upset because i was right there when i replaced my plugs, but great full that it wasnt a thousand dollar repair.. and now she purrs like a kitty, so thanks for all your tips i will keep in mind for future and if anyone has a similar issue, go ahead and replace coils
Reply With Quote
  #9  
Old 02-04-2013, 08:01 PM
HerbP HerbP is offline
Officially Welcomed to the 'Fest
Location: Georgia
 
Join Date: Jul 2009
Posts: 2,613
Mein Auto: 2005 645Ci & 2007 750Li
Strange, but good!
Reply With Quote
  #10  
Old 02-04-2013, 10:33 PM
Nitrogen's Avatar
Nitrogen Nitrogen is offline
Officially Welcomed to the 'Fest
Location: Central California
 
Join Date: Apr 2012
Posts: 438
Mein Auto: BMW 650i Convertible
You learn something everyday!!!
__________________
Sent Via iPhone using BimmerApp
Reply With Quote
  #11  
Old 02-05-2013, 08:22 AM
07 E63650i's Avatar
07 E63650i 07 E63650i is offline
Living in Fast Forward
Location: Southern California, USA
 
Join Date: Jan 2013
Posts: 3,080
Mein Auto: 2007 BMW E63 650i
Quote:
Originally Posted by leemyron View Post
well guys i broke down and dropped my car off at a local shop, to have a full diagnostic scan, originally quote of 98 bucks, they ran a smoke test for vacuum leaks, all was good, had mis fire of 1thru 7 this time, they went thru each coil and found only one yes one!! that was shorting out and causing all the mis fires, so i had a bad coil #3 which had I known that I would of replaced all coils, so all in all came out paying 200 bucks.. which i was upset because i was right there when i replaced my plugs, but great full that it wasnt a thousand dollar repair.. and now she purrs like a kitty, so thanks for all your tips i will keep in mind for future and if anyone has a similar issue, go ahead and replace coils
Glad to hear that it wasn't as bad as you had expected.
__________________
Once a 6'er, always a 6'er.
Reply With Quote
  #12  
Old 02-07-2013, 12:10 PM
leemyron leemyron is offline
Registered User
Location: corpus christi
 
Join Date: Jan 2013
Posts: 8
Mein Auto: bmw 645
yea not too bad, so here i am again on my off day tracing down a couple oil leaks, it appeared before that it looked like it was coming from valve covers but it seems to be puddling up more to the left side, i replaced a bad oil sending switch 6 months ago, i pulled plug today and theres sign of oil in plug, i guess it needs replacing again, also i pulled the plugs from underneath oil cap slightly to the right, those plugs as well had sign of oil, what are these switches called they have a bracket holding them in place as well.
Reply With Quote
  #13  
Old 02-07-2013, 05:25 PM
HerbP HerbP is offline
Officially Welcomed to the 'Fest
Location: Georgia
 
Join Date: Jul 2009
Posts: 2,613
Mein Auto: 2005 645Ci & 2007 750Li
If you are finding oil on the top parts of your plugs, the valve cover spark plug O-rings are bad. You should replace the valve cover, & timing cover gaskets, along with the spark plug o-ring/seals. Change any seals & O-rings on the valve cover for any other sensor also. This should take care of most of your problems. The only other leak would be to check just above your driver side motor mount, to see if your alternator O-ring is leaking.

Good Luck!
Reply With Quote
  #14  
Old 02-07-2013, 09:22 PM
Nitrogen's Avatar
Nitrogen Nitrogen is offline
Officially Welcomed to the 'Fest
Location: Central California
 
Join Date: Apr 2012
Posts: 438
Mein Auto: BMW 650i Convertible
Quote:
Originally Posted by leemyron View Post
yea not too bad, so here i am again on my off day tracing down a couple oil leaks, it appeared before that it looked like it was coming from valve covers but it seems to be puddling up more to the left side, i replaced a bad oil sending switch 6 months ago, i pulled plug today and theres sign of oil in plug, i guess it needs replacing again, also i pulled the plugs from underneath oil cap slightly to the right, those plugs as well had sign of oil, what are these switches called they have a bracket holding them in place as well.
Best thing to do is clean all the oil and pour some UV dye in the oil and use a UV light to see where the oil is coming from. I don't think your oil sending switch is bad again. Might just be your Vacuum unit right above dripping on the sending unit. The seals usually go at the same time.
The plugs you describe are either cam sensors or vanos but I doubt they are leaking. It's probably dripping down on the wires and makes it look like the sensor is leaking.
__________________
Sent Via iPhone using BimmerApp
Reply With Quote
  #15  
Old 03-06-2014, 08:40 PM
leemyron leemyron is offline
Registered User
Location: corpus christi
 
Join Date: Jan 2013
Posts: 8
Mein Auto: bmw 645
vacuum pump bottom hose

I just noticed at the bottom of the vacuum pump up front does not have a hose connected to bottom, is there suppose to be a hose there and what does it serve, i looked at a diagram online and saw there is a small black tubing connected to that bottom port. thanks for any help,
Reply With Quote
  #16  
Old 03-07-2014, 07:01 AM
Nitrogen's Avatar
Nitrogen Nitrogen is offline
Officially Welcomed to the 'Fest
Location: Central California
 
Join Date: Apr 2012
Posts: 438
Mein Auto: BMW 650i Convertible
Quote:
Originally Posted by leemyron View Post
I just noticed at the bottom of the vacuum pump up front does not have a hose connected to bottom, is there suppose to be a hose there and what does it serve, i looked at a diagram online and saw there is a small black tubing connected to that bottom port. thanks for any help,

If I'm not mistaken that is a test port to hook up a gauge and test the vacuum. It should have a rubber cover-cap on it. It can easily fall off if touched during servicing or checking things out. Hope that helps.


Sent from BimmerApp mobile app
__________________
Sent Via iPhone using BimmerApp
Reply With Quote
  #17  
Old 03-07-2014, 07:46 AM
leemyron leemyron is offline
Registered User
Location: corpus christi
 
Join Date: Jan 2013
Posts: 8
Mein Auto: bmw 645
Thank you. That helps allot. I was going crazy looking for a loose hose..have a great day!
Reply With Quote
  #18  
Old 05-01-2014, 10:56 AM
Medicus Medicus is offline
Marine
Location: Hawaii
 
Join Date: May 2012
Posts: 93
Mein Auto: 2005 BMW 645Ci
You can buy a full gasket kit for the vacuum pump for around $15 with shipping. It will include the block gasket and the vacuum pump cover gasket (not available at a dealer). Mine was leaking on the outside cover and was about a 40 minute job taking my time.
__________________
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 6 Series > E63 / E64 6 Series (2003 - 2013)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 06:40 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms