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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 09-23-2010, 10:58 PM
tim96 tim96 is offline
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Location: NZ
 
Join Date: Jul 2009
Posts: 246
Mein Auto: bmw e30 320i
320i - oil in air intake

I was just replacing the intake boot and noticed this oil sitting in the intake.
What does this mean is it normal or excessive, the car has done 156,000 miles
should i be concerned?

edit, was just browsing the net for this problem and read it could be caused by a vacum leak, is that correct? as that is the reason i was replacing the intake boot in the first place
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Last edited by tim96; 09-23-2010 at 11:04 PM.
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  #2  
Old 09-24-2010, 09:53 AM
pfahls1 pfahls1 is offline
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Location: North Mississippi
 
Join Date: Sep 2010
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Mein Auto: 1986 325ES
Quote:
Originally Posted by tim96 View Post
I was just replacing the intake boot and noticed this oil sitting in the intake.
What does this mean is it normal or excessive, the car has done 156,000 miles
should i be concerned?

edit, was just browsing the net for this problem and read it could be caused by a vacum leak, is that correct? as that is the reason i was replacing the intake boot in the first place
I think a faulty pcv valve can cause that as well. I don't think it's a huge reason for concern. Others may chim in as well.
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  #3  
Old 04-30-2011, 04:04 PM
1984CJP 1984CJP is offline
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Location: Mishawaka, In
 
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Posts: 55
Mein Auto: 1984 BMW 318i
I'm dealing with an idle problem. I was just going through to change all the vac hoses and I found the same thing, the intake boot was slightly cover on the inside with a little pool in the bend. Don't know what it could be
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  #4  
Old 04-30-2011, 07:02 PM
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downhiller downhiller is offline
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Mein Auto: 2012 hypermotard 796
its normal, to a point. these cars have a tube under the intake that allows the blowby gases to go back into the intake from the crankcase. it will look worse the older oil then fresh, since older oil breaks down and gets thinner. a good remedy to slow this is run a heavier weight oil.
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