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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M3 & M4 > E46 M3 (2001-2006)

E46 M3 (2001-2006)

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  #1  
Old 06-14-2017, 11:50 AM
jtruax571 jtruax571 is offline
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Mein Auto: 2004 BMW M3
Helppp

Hey guys I'm struggling here, I own a 2004 bmw m3, it starting smoking oil smoke when running near the head gasket on the right side on the engine towards the front, I assumed blown head gasket but my antifreeze was perfect and the car never over heated, the car also now leaks oil like crazy when it is running. I've narrowed the leak down to this little cap with a bolt head onto of it, the vanos oil line runs down to it, but I don't know what the damn thing is called to get the parts or do more research on the problem. plz help me out this has been a 3 week ordeal.
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  #2  
Old 06-14-2017, 02:05 PM
geminiys geminiys is offline
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Mein Auto: F10 5353xi, E46 M3
Without pictures its hard to give constructive answer. By your description the round canister with bolt on top is Oil Filter Housing. Is the leak from the top cap or connection area to the engine block? If it is top, rubber gasket needs replacing. If at the engine block, it is more involved to replace another gasket.
The smoke you are describing... Is it from the engine bay or exhaust pipe? If engine bay, the leaking oil most likely gets on the exhaust causing it. If it's from the exhaust, it could be either coolant or oil. What color is the smoke and does it have a smell to it?
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Last edited by geminiys; 06-14-2017 at 02:12 PM.
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  #3  
Old 06-14-2017, 02:25 PM
jtruax571 jtruax571 is offline
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So I thought maybe oil filter but its not that, its lower on the block and on the other side of the engine than the filter. The smoke is coming from the same place the leak is mid block towards the front of the engine on the right side (if your in driver seat, right) give me a sec ill post some pictures
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  #4  
Old 06-14-2017, 02:46 PM
jtruax571 jtruax571 is offline
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Here, the pictures... I guess the vanos line runs under it
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  #5  
Old 06-14-2017, 09:43 PM
geminiys geminiys is offline
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Mein Auto: F10 5353xi, E46 M3
If it's what I think it is the VANOS solenoid is leaking. If I were you, I would clean all fist and start the car. Maybe even drive around the block or two. Check to see where the leak is coming from. If it solenoid, it is easy. Unscrew and replace the washer. I don't think it uses gasket. Check www.realoem.com for details.
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Current Rides:
2013 535XDrive, 70k Miles
2005 M3, 62k Miles
1997 328is, 316k Miles and going strong
1998 Mercedes ML320, 200k Miles
2005 Volvo XC70, 155k Miles
2016 Audi Q5, 3k Miles
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  #6  
Old 06-15-2017, 09:26 AM
jtruax571 jtruax571 is offline
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Location: Indiana
 
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Mein Auto: 2004 BMW M3
I know the leak is coming from what ever that thing in the picture is. IS the solenoid located on the front of the engine with the vanos or on the side, cause this thing is on the side of the engine about mid engine.
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  #7  
Old 06-15-2017, 09:27 AM
jtruax571 jtruax571 is offline
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Location: Indiana
 
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Mein Auto: 2004 BMW M3
Nvm after looking at pictures I don't thin its the solenoid, is there some kind of cover screw or something
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  #8  
Old 06-15-2017, 09:33 AM
geminiys geminiys is offline
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Location: San Francisco
 
Join Date: Aug 2014
Posts: 138
Mein Auto: F10 5353xi, E46 M3
After looking at my engine (2005 M3) that should be no different from yours I failed to locate this plug - solenoid on mine. Can you take a picture little further away and/or the engine bay and point where that is?
__________________
Current Rides:
2013 535XDrive, 70k Miles
2005 M3, 62k Miles
1997 328is, 316k Miles and going strong
1998 Mercedes ML320, 200k Miles
2005 Volvo XC70, 155k Miles
2016 Audi Q5, 3k Miles
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  #9  
Old 06-15-2017, 10:10 AM
jtruax571 jtruax571 is offline
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Location: Indiana
 
Join Date: Jun 2017
Posts: 7
Mein Auto: 2004 BMW M3
It's The timing chain tensioner gasket leaking on me!!!!!
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