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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 01-02-2013, 07:16 PM
barkles barkles is offline
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Mein Auto: 07 E91 328i Sport
Oil leak on top left side of engine

Got an oil leak, appears to be coming from the Valvetronic or Valve cover gaskets with a little bit coming from the valve cover case. I've read about the bolts breaking on the valve cover, but I think I'll replace the valvetronic gasket first since that's easy and cheap.

When I got the car three months ago, I went around a hard left and a bunch of oil went on the catalytic converter. I had it towed to the dealer and they said a tech forgot to put the oil cap on and they said the cleaned the whole engine.

I drive for another 3,000 miles and notices a little smoke again.

I pull off the engine cover and immediately tell that was not the issue as there is no sign of there ever being any oil residue around the oil cap.

Lying sons a bitches! They just wanted me out of there so they didn't have to cover it under their 30-day/1,000 miles used car warranty.

What's happening in the oil is filling gathering slowly where the coil packs are and when I make a hard turn every couple of weeks, it pisses over the side and drops on to the converter causing smoke.



Dropping down on just above that blank metal cap with two screws here:



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  #2  
Old 01-02-2013, 07:44 PM
Leekay07 Leekay07 is offline
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its the Valve cover gasket. Change it yourself for about $100 or pay the dealer 925+ tax.
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  #3  
Old 01-02-2013, 07:55 PM
barkles barkles is offline
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Quote:
Originally Posted by Leekay07 View Post
its the Valve cover gasket. Change it yourself for about $100 or pay the dealer 925+ tax.
Why would there be oil pooling where the coil packs are and around the valvetronic motor? Bad seals around the spark plugs?

At just over 80,000 miles, that's pretty disappointing. I just replaced the alternator (DIY, reman unit) and pulleys last week too. I should invest in Au bolt manufacturers!
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Old 01-02-2013, 07:58 PM
Leekay07 Leekay07 is offline
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The valve cover gasket runs around the spark plug hole and the oil leaks at the seal into the spark plug hole and fills and spills. If its leaking like you said it is it needs it doing pretty soon.`

http://www.bimmerfest.com/forums/sho...d.php?t=514067
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Last edited by Leekay07; 01-02-2013 at 08:02 PM.
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  #5  
Old 01-02-2013, 08:08 PM
Leekay07 Leekay07 is offline
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80,000 is not bad for a gasket replacement. My WRX needed 3 gaskets before it had 50,000 miles (excessive yes)
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  #6  
Old 01-02-2013, 08:16 PM
barkles barkles is offline
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Quote:
Originally Posted by Leekay07 View Post
80,000 is not bad for a gasket replacement. My WRX needed 3 gaskets before it had 50,000 miles (excessive yes)
I guess, but I've owned a bunch of BMWs for over 100k miles and never had any issues in the past. I think the Au bolts are a bad design IMO.

I had a B6 Audi S4 and that ate through gaskets every 10k miles.

Speaking of Subarus... my other car is a 2007 2.5i Outback and the engine spun a bearing at 130k and I replaced the engine from a junk yard... $1700 for an engine with 55k miles. But that's that been the only issue with that car LOL.
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Old 01-02-2013, 08:39 PM
Leekay07 Leekay07 is offline
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I`d lean towards the plastic valve cover

Metal is better properties at dealing with heat than plastic..
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  #8  
Old 01-03-2013, 08:04 AM
jburke4689 jburke4689 is offline
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Doesn't the Valvetronic motor make changing the valve cover gasket a bit complicated? I think I have read some posts where guys have put the motor in wrong and the car wouldn't even start.

Watch this video.
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Last edited by jburke4689; 01-03-2013 at 08:31 AM. Reason: Update with video
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  #9  
Old 01-03-2013, 08:42 AM
Leekay07 Leekay07 is offline
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I'm sure it does but you can't keep loosing that much oil that it pools so much and leaks all down the side of the engine and smokes 2 times within 3,000 miles.
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  #10  
Old 01-03-2013, 08:49 AM
jburke4689 jburke4689 is offline
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Leekay, I'm with you on the need to replace and soon. If he doesn't, eventually he will have other problems, like coil packs, etc. I just wanted the OP to know that he should read up on how to do this job before he tears into it. If you just fire up the car after the repair without allowing the motor to reinitialize you could have major problems. The reinitialization seems pretty straight forward.
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  #11  
Old 01-03-2013, 10:33 AM
barkles barkles is offline
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The leak is not as bad as you think - I purchased the car with 72,000 miles and now have 81,000 miles, I have only had small oil drips a few times in that period. There is minimal pooling of oil and the coils are not swimming (yet). I'll order the parts and a good torque wrench today, that worm drive on the Valvetronic motor kinda scares me.
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  #12  
Old 01-08-2013, 09:37 PM
barkles barkles is offline
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Get ready for a doozy... so I dropped it off at the dealer early Monday morning. Called the tech that afternoon and they said they needed the car for another day to tell. Called them back today and they said they need "tear down time" for the valve cover... 8 hours for $860 (funny since it would take me 4 hours to replace the whole VCG). He then called back and said it's probably the eccentric shaft sensor and they wanted $1800 for replacement. Then he informed me that the car was cover under CPO... which expired on 12/15/2012. Which means I could have had this and my alternator/pulleys covered for $50. This is the definition of adding insult to injury.

He had the service director call BMWNA to see if we can get it a goodwill repair. Considering I have documentation that it's been leaking since September 2012, what are my chances they'll cover it?

Last edited by barkles; 01-08-2013 at 09:38 PM.
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  #13  
Old 01-09-2013, 03:03 AM
Leekay07 Leekay07 is offline
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good chance it will be covered at the dealers expense
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  #14  
Old 01-09-2013, 03:13 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by barkles View Post
Get ready for a doozy... so I dropped it off at the dealer early Monday morning. Called the tech that afternoon and they said they needed the car for another day to tell. Called them back today and they said they need "tear down time" for the valve cover... 8 hours for $860 (funny since it would take me 4 hours to replace the whole VCG). He then called back and said it's probably the eccentric shaft sensor and they wanted $1800 for replacement. Then he informed me that the car was cover under CPO... which expired on 12/15/2012. Which means I could have had this and my alternator/pulleys covered for $50. This is the definition of adding insult to injury.

He had the service director call BMWNA to see if we can get it a goodwill repair. Considering I have documentation that it's been leaking since September 2012, what are my chances they'll cover it?

Maybe. Keep us posted.

If not, relief may be at hand.
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