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X5 E53 (1999 - 2006)
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  #1  
Old 07-05-2012, 03:10 PM
sidewalkman sidewalkman is offline
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Location: Vancouver, Canada
 
Join Date: Oct 2005
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Mein Auto: 2003, X5 - 3.0.
Oil Leak on 03 X5 3.0

Hey Gang

I have a persistent oil leak under the X5. I have replaced the valve cover gasket (wasn't coming from there but... I can'really tell where its coming from, it collects in the skid plate and drips constantly but not enough that it more than annoying. It loses about a guart between oil changes. But the constant marking it's territory is starting to bug me.

Any ideas? Doesn't appear to be the pan gasket either. Thanks in advance for any tips you all can provide.
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  #2  
Old 07-05-2012, 06:55 PM
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DirtyDan DirtyDan is offline
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Location: Ohio
 
Join Date: Jan 2011
Posts: 170
Mein Auto: 2003 X5 3.0i
I just had the same issue. It was the oil separator valve also called the Pressure Regulating Valve in the diagram link below.

http://realoem.com/bmw/showparts.do?...94&hg=11&fg=15
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  #3  
Old 07-06-2012, 11:29 AM
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tmvE39/E53/Z32 tmvE39/E53/Z32 is offline
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Mein Auto: 03 540, 06 E53 4.8, Z32TT
Unless you have other signs of CCV failure, I don't think that is the cause. When it clogged, your VCG would usually leaked and maybe smoke at start-up.
Oil Filter Housing gasket is a possible leak on the M54 engine besides the VCG.
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FS 2001 ///M5
http://www.bimmerfest.com/forums/sho...d.php?t=791509
2000 Dinan S1 //M5 (my DD) 06 DINAN E53 4.8iS (wife's DD), 90 Straman Z32TT (my pride & joy ride)

Gone, but not forgotten: 01 E53 3.0i, 01 525i Sport, 03 DINAN 540i MSport and 91 Z32TwinTurbo
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  #4  
Old 07-10-2012, 04:17 PM
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ylwjacket ylwjacket is offline
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Location: florida
 
Join Date: Sep 2004
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Mein Auto: 2005 3.0
I have leaks from valve cover and from oil filter housing. Pretty common, so I hear.
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  #5  
Old 07-10-2012, 04:43 PM
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DirtyDan DirtyDan is offline
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Mein Auto: 2003 X5 3.0i
I have now figured out that I have the oil filter housing gasket but it was hard to tell at first. I bought the oil filter housing gasket for $5 bucks but looks like you have to take alot apart to get to it. I know my brother can do it since he did the OSV (10 hour job).

I think i love solving all the problems is why i like my bimmer!
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  #6  
Old 07-10-2012, 04:55 PM
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ylwjacket ylwjacket is offline
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Location: florida
 
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Mein Auto: 2005 3.0
I'm doing it this weekend. Valve cove gasket, and auxiliary fan too. Hoping to knock out the fan Friday night, then both gaskets on Saturday.
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  #7  
Old 07-11-2012, 07:59 AM
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tmvE39/E53/Z32 tmvE39/E53/Z32 is offline
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Mein Auto: 03 540, 06 E53 4.8, Z32TT
Do some other cross maintenance to save labor: Spark-plugs, Vanos seals, clean MAF, ICV, throttle body ....
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FS 2001 ///M5
http://www.bimmerfest.com/forums/sho...d.php?t=791509
2000 Dinan S1 //M5 (my DD) 06 DINAN E53 4.8iS (wife's DD), 90 Straman Z32TT (my pride & joy ride)

Gone, but not forgotten: 01 E53 3.0i, 01 525i Sport, 03 DINAN 540i MSport and 91 Z32TwinTurbo
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