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Help me find source of oil leak..

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Old 03-29-2012, 11:26 AM
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This leak has been going for some time now but just recently really noticed it. There are two points where i think the oil might be coming from. I still have not cleaned the entire area with degreaser to pin point it more by watching it.

Help me identify some of these parts as well. I am clueless at what i could be looking at.



This is area one it could be leaking from. Seems there is a O ring or rubber backing to the bolt that has just been softened up and erroding away.



This is point two where it could be leaking from. I tried pointing it out better with my finger but this point seems to be some sort of clip for electrical? Oil level sensor?




This is another thing i noticed when under the car. This rubber bushing is cracked. Dont notice anything different when driving the car but i dont want this to give way causing more damage when it goes. Any one can tell me what part this is too?
Passenger side:

Drivers side:


Clueless to BMW. All i have ever owned is Honda. lol So please bare with me if these parts are common. Thanks for any help guys.
Old 03-29-2012, 11:37 AM
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What model and year?
Old 03-29-2012, 11:59 AM
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Originally Posted by epilithic
What model and year?
2008 535i
Old 03-29-2012, 12:08 PM
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My oil leak is coming from here from a bad gasket https://wiki.bentleypublishers.com/d...8M54+engine%29
Old 03-29-2012, 12:27 PM
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Originally Posted by SD5Series
My oil leak is coming from here from a bad gasket https://wiki.bentleypublishers.com/d...8M54+engine%29

I will check in that general area when I go under the car again. I still want to clean the area and see of I can find a better source.
Old 03-29-2012, 12:47 PM
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The damaged bush looks like the anti-roll bar bush. Not too critical, it may cause a creaking noise and very slightly affect the handling when cornering. Fairly easy to replace.
Old 03-29-2012, 01:39 PM
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Originally Posted by JasonH
The damaged bush looks like the anti-roll bar bush. Not too critical, it may cause a creaking noise and very slightly affect the handling when cornering. Fairly easy to replace.
+1....defo the anti-roll bar bush.

Is the leak from the left or right side of the engine?....if the right it maybe the ATF fluid as this is a common fault on bmws.
Old 03-29-2012, 02:15 PM
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Originally Posted by Mother
+1....defo the anti-roll bar bush.

Is the leak from the left or right side of the engine?....if the right it maybe the ATF fluid as this is a common fault on bmws.

Passenger side. At this point I want to replace that rubber washer on the back of the bolt. I'm thinking it's from there but I want to figure out what that bolt is to first.
Old 03-29-2012, 07:40 PM
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The metal cylindrical part bottom left front passenger side of engine. This is where the bolts look just about from.

Anyone know what that is?
Old 03-29-2012, 07:48 PM
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Originally Posted by SD5Series
My oil leak is coming from here from a bad gasket https://wiki.bentleypublishers.com/d...8M54+engine%29

This seems to be on te front driver side of the car correct? Pulleys are all in front of car/engine?


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