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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 / E61 (2004 - 2010)

E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 03-23-2017, 02:31 PM
bowhunternkbay bowhunternkbay is offline
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Oil in sparkplug well

This past Saturday I changed the sparkplugs in the wife's 2008 528i. Job was pretty easy, but I did encounter an anomaly. Positions 1-4 (from the front towards the back of the motor) had small deposits of oil in the bottom of each sparkplug well. Positions 5 & 6 were clean. Has anyone encountered this? I was thinking it could come from the valve cover gasket, but didn't really see evidence of that. I also thought maybe spillage in the past when changing the oil. Maybe even the oil cap. I don't really know what to think. Would enjoy entertaining other possible ideas from the forum. Thanks.
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  #2  
Old 03-23-2017, 02:38 PM
Alika808 Alika808 is online now
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It's the valve cover gasket, even there's no oil leak from the side of the engine block but the inside gasket could leak. By the way, how many miles the car now?
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Old 03-23-2017, 02:38 PM
A113E60 A113E60 is offline
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I've had oil in a cylinder of my Honda, but that was because I didn't have the spark park tight enough. Were the spark plugs pretty tight when you removed them?
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Old 03-23-2017, 03:15 PM
twh twh is online now
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I second the opinion that more than likely valve cover gasket.
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  #5  
Old 03-23-2017, 03:22 PM
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eburnz eburnz is online now
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VGC

also make sure ur engine cover doesn't have a crack in it either, these crack as well over time... ask me how i know.
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Old 03-23-2017, 04:32 PM
Alika808 Alika808 is online now
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Quote:
Originally Posted by A113E60 View Post
I've had oil in a cylinder of my Honda, but that was because I didn't have the spark park tight enough. Were the spark plugs pretty tight when you removed them?
If the spark plug is not tight, then you have a cylinder compression leak and leads to rough running engine.
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Old 03-23-2017, 06:00 PM
bowhunternkbay bowhunternkbay is offline
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The vehicle has 63000 miles on it. I did check to see if the valve cover showed any evidence of leaking...I will check it again. And ALL sparkplugs were torqued respectively.
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Old 03-24-2017, 05:55 PM
DJtoad DJtoad is offline
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Valve cover gasket. Trust us. If you do the work yourself you'll find the rubber gasket is now hard as a rock and breaks into pieces when you try to remove it.
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  #9  
Old Yesterday, 02:40 AM
JoeyQ JoeyQ is offline
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+1 on valve cover gasket. They fail because of age, not mileage usually. Like previously stated, the gasket hardens and loses its function. I just replaced the valve cover gasket on my '08 535i. I've had it since new, and the factory gasket lasted until November, but I've been putting off replacing it. I did it myself and it was a bit time consuming, but not too bad. I found oil in the spark plug wells too, and it also had a burning smell and light smoke from leaking oil. You couldn't just look at the valve cover and know that it's the gasket, you just had to hope that was it. Lucky for me it was lol


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  #10  
Old Yesterday, 08:25 AM
twh twh is online now
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Wife's 2009 X5 was leaking oil from the valve cover gasket. Oil in spark plug wells and some seeping out the side of the gasket. Enough coming out it would smoke from under the hood if you sat for a bit. A little on the garage floor. Gasket came out in pieces. Hard brittle rubber. Interesting thing is my 2006 530xi has the same N52 engine, but has the magnesium valve cover instead of the plastic valve cover. The magnesium valve cover gasket is different -- more of a traditional flat gasket. Still bone dry all around. Not even any weeping.
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  #11  
Old Yesterday, 10:39 AM
Kurt_ Kurt_ is offline
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It could also be a loose oil filler cap.
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