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Old 11-18-2014, 05:36 PM   #1
mmxiv
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Found the oil leak- Am I missing anything else ?

Alright fanatics, you guys have helped me out a great deal in the past. I have limited knowledge but I'm slowly getting more and more familiar with everything under the hood.

A little history- I recently replaced my VCG, VANOS, hoses around the SAP, spark plugs, and clutch fan.

The car is running pretty good except for a small oil leak that in my opinion is pretty minor. I recently decided to take care of this annoying oil leak. I went ahead and looked under the car and found a mess that was probably caused by the VCG. The source of the leak is the high pressure power steering line (fresh oil drops forming).

I hope this leak is it BUT the skid plate around the oil pan seems to also have fresh "mud-like" goo on it... I looked at the oil pan bolt to see if that General area was leaking but it wasn't. I'm going to clean everything to find the source of the second leak if there is one (I should have done that a long time ago).

I should also mention that I looked under the hood and everything seems to be bone dry including the VCG.

Like I previously mentioned, mostly everything that's caked-on the bottom appear to be old goo from issues that I've already addressed.

Thanks for your feedback.

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Old 11-18-2014, 05:37 PM   #2
Solidjake
Zero. Oil. Leaks.
 
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Clean as much of the oil off as possible and then check where the oil is coming from after a drive or two.
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Old 11-18-2014, 06:06 PM   #3
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OFHG, PS and VANOS lines are the most common leak locations.
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Lower hose fan switch O-ring - BMW #13621743299
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Old 11-18-2014, 06:11 PM   #4
mmxiv
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I'm going to order the PS line and then start cleaning.... I was hoping it wouldn't be the oil pan gasket (I read up on how tedious that DIY can be) or the rear main seal.
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Old 11-18-2014, 06:42 PM   #5
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Did you replace your Oil Filter Housing Gasket (OFHG)? They tend to leak a lot.
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Old 11-18-2014, 06:46 PM   #6
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Clean up the oil. If it's the OFHG it's fairly easy but takes awhile to get to it. If it's your oil pan gasket, that sucks. I have done it and I say choose a weekend to make sure you do it right.

Also if it's the oil pan might as well change the control arms and fcabs.
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Old 11-18-2014, 06:47 PM   #7
mmxiv
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Yes, I forgot to mention that I have also changed that OFHG.
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Old 11-18-2014, 06:50 PM   #8
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Power steering lines (most likely) or oil pan.

I pretty much had everything leaking in the six years of owning my car. had it all replaced and the bottom of my engine is bone dry.
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Old 11-18-2014, 06:57 PM   #9
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It's #3 the one that is dripping... Click image for larger version

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Old 11-18-2014, 07:34 PM   #10
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Be careful, usually the problem PS hoses are the 2 that connect to the reservoir.
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Hidden OBC Menu - Check Voltage, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose fan switch O-ring - BMW #13621743299
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Old 11-18-2014, 07:50 PM   #11
mmxiv
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Yeah, I experience and addressed that problem already... I had noticed that my PS fluid was gradually going down, and I saw it seeping from the hose where it connects to the reservoir... I ended up cutting a small piece (1/2 inch) of the hose and using a regular clamp to tighten it (the original wasn't tight enough anymore) to the reservoir. As of right now that part is bone dry.
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Old 11-18-2014, 07:54 PM   #12
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rear main seal always leak, it gets hard after 10 years.
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Old 11-18-2014, 07:58 PM   #13
mmxiv
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I've been on top of checking my oil level but there hasn't been a significant change. This oil loss is more annoying than anything...
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Old 11-18-2014, 08:26 PM   #14
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Quote:
Originally Posted by jfoj View Post
OFHG, PS and VANOS lines are the most common leak locations.
Also check the power steering filler cap. That o-ring leaks on nearly every E46 I have seen.

To be a proper fanatic, your engine compartment should be kept very clean, like a fresh Mango off the tree...
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Old 11-18-2014, 08:52 PM   #15
mmxiv
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I replaced the o-ring on the power steering reservoir cap at the same time I cut/re-clamped the hose.

I'm no mango YET, but I'm working my way towards that. Baby steps...
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Old 11-19-2014, 05:52 PM   #16
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***UPDATE*** after cleaning all the goo that was under the car thoroughly (what I was able to reach) I saw oil on the power steering hose... I looked to see if there was fresh oil above the hose and sure enough ... I traced the source of the leak to the banjo bolt and that hose... The OFHG seal might be shot too (I replaced the seal less than a year ago with a Victor Reinz one).

This time around I'm going to replace the hose that goes from the intake camshaft to the OFHG... The crush washers, and the OFHG seal...

Any suggestion on where I can get a better OFHG seal? Or was the Victor Reinz one good... Crush washers? The hose for the banjo bolts?


Thanks for the feedback.
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