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Old 07-01-2018, 04:59 PM   #1
Paul E. Evans
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Oil on plug thread

1.8 TSI 2016, build date 4/2015. 31K miles. Removed spark plug closest to passenger side. Fresh oil on outlined area of attached pic. Pic is not my plug, but I outlined the area where there was oil. Is this a concern? Thanks.



No other issues with engine.


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Old 07-01-2018, 08:15 PM   #2
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Little leaky valve cover gasket. Get warrenty
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Old 07-02-2018, 11:06 AM   #3
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^^^^ More than likely. I agree unless you're getting performance issues.
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(Mostly) Posted by Josh/AWE. Flapper valves are open at idle, close after 1100 RPM during part throttle. Full throttle 1st-4th gear the valves open until throttle let off. 4th gear, 1500 RPM to full throttle closed, closed until 3500 RPM, then open until lift off throttle.
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Old 07-02-2018, 08:27 PM   #4
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Thanks for the responses. Still under manufacturer's warranty. Taking to dealer this week.
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Old 07-11-2018, 10:34 PM   #5
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UPDATE dealer pulled all plugs, and checked for oil leaks including putting on hoist. They say its assembly fluids or lubricants. They found no oil. I will remove the same plug before warranty to reassess.
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Old 07-11-2018, 11:34 PM   #6
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Quote:
Originally Posted by Paul E. Evans View Post
UPDATE dealer pulled all plugs, and checked for oil leaks including putting on hoist. They say its assembly fluids or lubricants. They found no oil. I will remove the same plug before warranty to reassess.
I just pulled my plugs to check gap and noticed on my cylinder 1 and 4 plugs had stuff right where you said it was. It was sticky and dark though and didn't smell like oil. Seems like it's a substance they used for stock plugs. Just got a dark oil color due to the combustion and bs going on down there. Unless of course it's actually liquid oil and smells like it.

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Old 07-12-2018, 06:15 PM   #7
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Originally Posted by Paul E. Evans View Post
UPDATE dealer pulled all plugs, and checked for oil leaks including putting on hoist. They say its assembly fluids or lubricants. They found no oil. I will remove the same plug before warranty to reassess.
That was my first guess before I read this post honestly. Nothing to worry about.
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Old 07-13-2018, 09:05 AM   #8
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Found the same sticky stuff when I swapped plugs. Definitely not oil. Should not be an issue.
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Old 08-05-2018, 10:05 PM   #9
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UPDATE

UPDATE: checked plug today after letting car sit overnight. Oil on plug. Seeing dealer this week for warranty claim.
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Old 08-06-2018, 03:07 AM   #10
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You should be able to look in the hole with the plug out and see the oil leaking from the gasket.
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Old 09-11-2018, 03:55 AM   #11
Paul E. Evans
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UPDATE: dealer checked and found oil threads plugs 3 & 4. Because there are no exterior oil leaks, the amount of oil on threads did not constitute taking further action. I am not having consumption, oil leaking, or performance issues. They made a point to document it all should things get worse.
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Old 10-30-2018, 12:59 AM   #12
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Quote:
Originally Posted by Paul E. Evans View Post
UPDATE dealer pulled all plugs, and checked for oil leaks including putting on hoist. They say its assembly fluids or lubricants. They found no oil. I will remove the same plug before warranty to reassess.



I did my plugs at 70k miles, my one spark plug by the coolant tank had the same residue of what looked like motor oil that was cooked a little, it was almost sticky. The rest had none, it might be some sort of assembly lube no idea but it was brown.
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