Oil leaking help!

em2b96p · 04-05-2012, 01:42 AM

I have a 2004 Z4 3.0i engine.

I have some oil leaking out of a nut next to the front most spark plug. I believe its a 10mm nut, washer, and rubber grommet/gasket. Underneath it there is another nut. I believe this is where the oil is leaking from because there is a pool of oil.

What is behind this thing? How can I stop the leak? Is this a common problem?*

It is circled in red.

[IMG]

[/IMG]

Thanks

Donovan303 · 04-05-2012, 09:38 AM

That is one of the rubber grommets for the valve cover. There are 15 of those along with the 3 parts to the valve cover gasket. Have you replaced this before? If not it is time. You will have to remove the valve cover to get to that anyway and it will give you a better idea of the overall gasket condition but it is a cheap and easy fix.

-Donovan

em2b96p · 04-05-2012, 05:45 PM

Quote:

Originally Posted by Donovan303

That is one of the rubber grommets for the valve cover. There are 15 of those along with the 3 parts to the valve cover gasket. Have you replaced this before? If not it is time. You will have to remove the valve cover to get to that anyway and it will give you a better idea of the overall gasket condition but it is a cheap and easy fix.

-Donovan

I have not replaced any of the gaskets or grommets. The Z has about 55k on it.

I already looked at valve cover gasket set.

This one..

If this is not it, can you show me a picture of the 15 rubber grommets? Or maybe a rubber grommet kit I could buy?

Thanks in advance

em2b96p · 04-05-2012, 05:56 PM

pardon my ignorance but...

Is the leak due to one of the 15 grommets? Or is it part of the spark plug gasket?

Part in question is circled in RED.

Donovan303 · 04-06-2012, 11:39 AM

Since the gasket is original and you have 55k plan on replacing the valve cover gasket and 15 grommets.

BavAuto has these:

Valve Cover Gasket set part number 11 12 0 030 496
Grommet (you need 15) part number 11 12 1 437 395 and 52502

There are a few videos online that explain proper replacement procedure.

It isn't difficult and should not take more than an hour to do.

Good luck,
Donovan

em2b96p · 04-11-2012, 01:47 PM

OK Thanks Donovan!

04-05-2012, 01:42 AM	#1
em2b96p Private First Class 15 Rep 184 Posts Drives: cbr600rr Join Date: Feb 2006 Location: philadelphia iTrader: (0)	I have a 2004 Z4 3.0i engine. I have some oil leaking out of a nut next to the front most spark plug. I believe its a 10mm nut, washer, and rubber grommet/gasket. Underneath it there is another nut. I believe this is where the oil is leaking from because there is a pool of oil. What is behind this thing? How can I stop the leak? Is this a common problem?* It is circled in red. [IMG][/IMG] Thanks Last edited by em2b96p; 04-05-2012 at 01:54 AM..
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04-05-2012, 09:38 AM	#2
Donovan303 Enlisted Member 6 Rep 31 Posts Drives: 2003 2.5 Z4 Join Date: Jun 2011 Location: NC iTrader: (0)	That is one of the rubber grommets for the valve cover. There are 15 of those along with the 3 parts to the valve cover gasket. Have you replaced this before? If not it is time. You will have to remove the valve cover to get to that anyway and it will give you a better idea of the overall gasket condition but it is a cheap and easy fix. -Donovan
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04-05-2012, 05:56 PM	#4
em2b96p Private First Class 15 Rep 184 Posts Drives: cbr600rr Join Date: Feb 2006 Location: philadelphia iTrader: (0)	pardon my ignorance but... Is the leak due to one of the 15 grommets? Or is it part of the spark plug gasket? Part in question is circled in RED.
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04-06-2012, 11:39 AM	#5
Donovan303 Enlisted Member 6 Rep 31 Posts Drives: 2003 2.5 Z4 Join Date: Jun 2011 Location: NC iTrader: (0)	Since the gasket is original and you have 55k plan on replacing the valve cover gasket and 15 grommets. BavAuto has these: Valve Cover Gasket set part number 11 12 0 030 496 Grommet (you need 15) part number 11 12 1 437 395 and 52502 There are a few videos online that explain proper replacement procedure. It isn't difficult and should not take more than an hour to do. Good luck, Donovan
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04-11-2012, 01:47 PM	#6
em2b96p Private First Class 15 Rep 184 Posts Drives: cbr600rr Join Date: Feb 2006 Location: philadelphia iTrader: (0)	OK Thanks Donovan!
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