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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 10-15-2013, 06:49 AM
Deerfield87 Deerfield87 is offline
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Any idea what could be causing oil loss?

I have had my car for several years now with no major issues. It has 63K on it and I have performed standard maintenance regularly - changing oil every 8K or so.

Within last year, oil light has come on a few times and I have noticed my oil reservoir down 1-3 quarts.

There is no visible leakage or any spotting on garage ground, etc.

I assume I am burning oil some how as I have noticed several times after idling at a light, I see a big cloud of blue smoke emit from the exhaust when I accelerate out. Again, only occasionally - I assume this is oil.

Thanks for any assistance or thoughts.
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  #2  
Old 10-15-2013, 08:34 AM
ttuite ttuite is offline
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One to three quarts is a LOT of oil to burn through the engine. Is your back bumper coated in oil?
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  #3  
Old 10-15-2013, 09:10 AM
Deerfield87 Deerfield87 is offline
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Quote:
Originally Posted by ttuite View Post
One to three quarts is a LOT of oil to burn through the engine. Is your back bumper coated in oil?
yeah - No physical manifestations at all (other than chrome tailpipes a little darker on the inside from occasional smoke)
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  #4  
Old 10-15-2013, 09:23 AM
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07 E63650i 07 E63650i is offline
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Mein Auto: 2007 BMW E63 650i
Any idea what could be causing oil loss?

Quote:
Originally Posted by Deerfield87 View Post
I have had my car for several years now with no major issues. It has 63K on it and I have performed standard maintenance regularly - changing oil every 8K or so.

Within last year, oil light has come on a few times and I have noticed my oil reservoir down 1-3 quarts.

There is no visible leakage or any spotting on garage ground, etc.

I assume I am burning oil some how as I have noticed several times after idling at a light, I see a big cloud of blue smoke emit from the exhaust when I accelerate out. Again, only occasionally - I assume this is oil.

Thanks for any assistance or thoughts.
You definitely have a valve stem seal issue that is causing oil to leak. This is a very expensive repair. I hope you have an extended warranty.


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  #5  
Old 10-15-2013, 06:02 PM
HerbP HerbP is offline
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It possibly sounds like you could be having some valve seal problems. 1 more item to check would be the CCV diaphragms. These will only run around 50.00 for both, & it takes 30 minutes to install. Check the DIY section for more info!

Good Luck!
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  #6  
Old 10-16-2013, 06:40 AM
Deerfield87 Deerfield87 is offline
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Thanks guys - lets hope it is the latter and not the former - over 8 year old car with 60K on it - warranties are long gone.
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Old 10-16-2013, 07:23 AM
RooK77 RooK77 is offline
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Best of luck, keep us posted.
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  #8  
Old 10-16-2013, 07:49 AM
tampamark tampamark is online now
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I don't think aftermarket warranties would cover valve-stem seals anyway. I haven't read them all but I have seen enough of them!

Typically anything with the word "seal" in it is excluded from coverage since they are considered wear items.

Good luck.
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  #9  
Old 10-16-2013, 01:42 PM
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bigscore bigscore is offline
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Not that far a drive from Maryland......

http://www.bimmerfest.com/forums/sho...d.php?t=693230
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  #10  
Old 10-17-2013, 07:22 AM
Deerfield87 Deerfield87 is offline
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Originally Posted by bigscore View Post
Not that far a drive from Maryland......

http://www.bimmerfest.com/forums/sho...d.php?t=693230
Very helpful - thank you.
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