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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E65 / E66 (2002 - 2008)

7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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  #1  
Old 08-06-2015, 04:59 PM
harreda harreda is offline
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Location: Milwaukee
 
Join Date: Aug 2015
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Mein Auto: 2004 BMW 745Li
Smoke out of my exhaust when car idles

Does anyone know what this could be ? i hear this issue is common for the 2004 745li BMW's.
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  #2  
Old 08-06-2015, 08:44 PM
DakotaInfo DakotaInfo is offline
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Location: Modesto, CA
 
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Mein Auto: 2004 745 LI
Valve seals. Prepare about 3 grand to fix or diy for a few hundred.
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  #3  
Old 08-06-2015, 08:49 PM
harreda harreda is offline
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What parts should I be replacing ? Just the valve seals ?
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  #4  
Old 08-06-2015, 08:50 PM
harreda harreda is offline
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Also if I am receiving codes P0491 and P0492 do you have an idea on what parts should be replaced to repair those codes ?
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  #5  
Old 08-06-2015, 08:51 PM
DakotaInfo DakotaInfo is offline
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Yup. About 300$ for new ones. Kit to replace costs about 800$ but you can buy it used and sell for the same. Some guys rent it out ok. Just do a search, lots of info here.
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  #6  
Old 08-06-2015, 08:52 PM
harreda harreda is offline
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Thanks allot
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  #7  
Old 08-06-2015, 08:52 PM
DakotaInfo DakotaInfo is offline
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Vacuum leaks, could be valve covers gaskets. Most likely a vacuum leak.
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  #8  
Old 08-06-2015, 08:54 PM
DakotaInfo DakotaInfo is offline
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Probably worth the cost of a smoke test at a Indy to track down the leak.
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  #9  
Old 08-06-2015, 08:54 PM
harreda harreda is offline
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Location: Milwaukee
 
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Should I not drive the car ? I mean it drives fine and the miles are low so I use it as my everyday car.
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  #10  
Old 08-06-2015, 09:02 PM
DakotaInfo DakotaInfo is offline
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The longer you wait you secondary air injection ports will clog, causing a whole other issue you will have to deal with. The diy was fairly easy, I'm no professional and it took me 6 days of after work to replace the seals.
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  #11  
Old 08-06-2015, 09:03 PM
DakotaInfo DakotaInfo is offline
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Location: Modesto, CA
 
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Mein Auto: 2004 745 LI
http://www.agatools.com/tool/n62-valve-stem-seal-tool

Here is the tool. Excellent instructions on their site and you cans sell the tool here when you are done.
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  #12  
Old 08-07-2015, 03:54 PM
harreda harreda is offline
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Location: Milwaukee
 
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I was watching videos about this problem and the smoke is not as bad as the videos. And I believe it is a bluish smoke. Do you know if this could be something different and also a good place to order the parts needed ?
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  #13  
Old 08-07-2015, 04:17 PM
harreda harreda is offline
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Can you check this out if you have a chance and tell me what you think.

Thanks for all the info
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  #14  
Old 08-08-2015, 06:03 PM
DakotaInfo DakotaInfo is offline
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Best way to tell of its your valve stem seals it let the car idle for 5 minutes then accelerate hard. Try that and see how much smoke comes out. That will tell a lot.
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  #15  
Old 08-08-2015, 06:04 PM
DakotaInfo DakotaInfo is offline
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Broken seals in the vents could be causing your fault codes. I just replaced mine and picked them up at the dealer.
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  #16  
Old 08-09-2015, 02:55 PM
harreda harreda is offline
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ok I'm taking it to a shop on Saturday I will follow up with you and let you know what I find out.
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  #17  
Old 08-25-2015, 11:42 AM
06_BMW_750LI_ 06_BMW_750LI_ is offline
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Quote:
Originally Posted by harreda View Post
ok I'm taking it to a shop on Saturday I will follow up with you and let you know what I find out.
Any updates?
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  #18  
Old 08-25-2015, 01:37 PM
harreda harreda is offline
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Location: Milwaukee
 
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Mein Auto: 2004 BMW 745Li
None yet. The Mechanic I had backed out on me. So i have been trying to find other avenues. I don't really want to spend 3 grand if it's a simple fix.
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