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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 03-13-2014, 11:22 AM   #1
David325xi
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Join Date: Mar 2014
Location: Pennsylvania
Posts: 10
My Ride: 02 325xi
325xi Valve Cover Oil Leak

I believe my 02 325xi has a pretty major oil leak. When I check out the engine I find a lot of oil around the valve cover. Is it possible the it is just my valve cover or something else. I smell burning oil after my car heats up and after my car sits awhile there is oil underneath it. I just bought the car a week ago and it was inspected and had the oil changed before I bought it.
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Old 03-13-2014, 11:27 AM   #2
SamDoe1
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Join Date: Oct 2010
Location: Minnesnowta
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It's the valve cover, replace it. It is both cheap and easy to replace that part and there are plenty of instructions on here on how to do it.
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Old 03-13-2014, 11:36 AM   #3
David325xi
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Thanks, my father is a mechanic so I was going to have him help me but he has never worked on a bimmer.
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Old 03-13-2014, 12:36 PM   #4
SamDoe1
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He'll be fine. It's not like BMW is different from any other car. As long as you can read instructions and turn a wrench you can work on a BMW.
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Old 03-13-2014, 10:52 PM   #5
My325XI
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Gasket...valve cover gasket. Here is an old thread with the instructions to replace.
http://forum.e46fanatics.com/showthread.php?t=626540
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Old 03-14-2014, 10:31 AM   #6
AndrewReaganM
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My Ride: 02' 325xi OrientBlue
Bought mine a few months ago. I had the same problem with the valve cover gasket leaking. I have replaced it and there has been no oil outside the engine since. The remaining oil from when it leaked could take a few weeks of driving to burn off. And I'm 15 so you should have no issue replacing it yourself, as i have done it and the VANOS seals. You might as well do them while you are in there in my opinion.
Thanks, Andrew.
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Old 03-15-2014, 01:58 PM   #7
David325xi
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I just replaced the valve cover gasket adn cleaned off my engine. I took it for a test drive and came back and I still have an oil leak. It is not the valve cover gasket. It is beneath where the oil filter is but it is not the filter. What could it be?
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Old 03-15-2014, 02:27 PM   #8
Amhague
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Oil filter housing gasket most likely.


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Old 03-15-2014, 02:53 PM   #9
AndrewReaganM
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Quote:
Originally Posted by Amhague View Post
Oil filter housing gasket most likely.


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It almost has to be on the exhaust side for the oil to be burning, right? Nowhere else would be hot enough.

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Old 03-15-2014, 11:03 PM   #10
Amhague
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Quote:
Originally Posted by AndrewReaganM View Post
It almost has to be on the exhaust side for the oil to be burning, right? Nowhere else would be hot enough.

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He said it was below the oil filter.. You wouldn't usually see smoking there. He probably had a leaky valve cover and Ofhg.


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Old 03-16-2014, 12:37 AM   #11
phoopsta
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My Ride: 02 330xi 3-pedal
mmm oil filter housing gasket. That was a pleasurable experience to fix.. lol. But that fixed my major leak. If you wanna really confirm its the OFHG, there is a splash sheild you can remove under the drivers side of the engine, if thats caked in fresh oil, congrats. ofhg or the vanos line in there could be the issue. When I did my ofhg, the gasket would just break up in my hands.
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Old 03-17-2014, 01:16 PM   #12
David325xi
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We took everything off and we did indeed verify that it was the OFHG. I am now just waiting to put the new gasket on once we get it. And to the above thread the burnt oil was coming from my valve cover gasket leak.
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Old 08-01-2014, 09:53 PM   #13
Je357
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Click image for larger version

Name:	ImageUploadedByBimmerApp1406944378.983461.jpg
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Size:	173.0 KB
ID:	567629
That was my valve cover gasket at 145k


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Old 08-01-2014, 09:56 PM   #14
Je357
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I'm doing oil filter housing gasket next. Looks like whoever had this car before me neglected it. I have oil leak bad. Coming from the driver side bottom .....caked. Shield on bottom holds a puddle of oil.


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Old 08-04-2014, 08:34 PM   #15
Je357
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Also i had two lean codes p0171 and p0174 lean codes bank 1 & 2.

After clearing

Codes are gones since replacing valve cover gasket.


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