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  1. #1
    Active Member Two Rings Quaality's Avatar
    Join Date
    Jun 06 2016
    AZ Member #
    374327
    My Garage
    '08 G8
    Location
    Minnesota

    1.8T Oil leak diagnose

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    So finally getting work done on the car, all new control arms up front and just got the car ready to drive but figured since i need to still replace my wiper linkage and some air supply pieces I'd dive into my oil leak before winter (better now than when its snowing and cold). So, I recorded a video and have it up on this YouTube Link and hopefully this helps with some diagnosing. I was originally thinking it was a valve cover gasket but as time went on its definitely something else. Some have suggested some cam seals or turbo lines leaking. Anyways, take a look at the video and let me know what I should do next, Thank you people for being awesome.
    Current Vehicles: 2001 A4 1.8T 5 speed, 2008 G8, 2001 F250 Powerstroke

  2. #2
    Veteran Member Four Rings redline380's Avatar
    Join Date
    Oct 30 2008
    AZ Member #
    34773
    My Garage
    B5, B7, B8, 8V, 4M
    Location
    Big Lake, MN

    valve cover gasket for sure, but that wouldnt cause the drips. It is probably coming from a pressure area. I would check out the oil supply line for the turbo
    “You may recall we went to a PARK IN BOTSWANA." George W. Bush, 43rd President of the United States of America

    2020 SQ7- Wife's ride
    2018 RS3- Wish I could drive it more
    2010 A4- Why do I even own this?
    2007 A4 Avant 2.0T Titanium Package, aka "Big Red"
    2000 S4- Working?

  3. #3
    Veteran Member Four Rings MacFady's Avatar
    Join Date
    Aug 10 2011
    AZ Member #
    79540
    My Garage
    330i ZHP
    Location
    Prince Edward Island

    Quote Originally Posted by redline380 View Post
    ...I would check out the oil supply line for the turbo
    I concur

  4. #4
    Active Member Two Rings Quaality's Avatar
    Join Date
    Jun 06 2016
    AZ Member #
    374327
    My Garage
    '08 G8
    Location
    Minnesota

    ok. I looked up what I should be looking for (as I did not know what it looks like) and would I be looking for it being loose and needing to be tightened or is it more common for a crack in the line or loose around connections allowing oil to pass?
    Current Vehicles: 2001 A4 1.8T 5 speed, 2008 G8, 2001 F250 Powerstroke

  5. #5
    Veteran Member Four Rings redline380's Avatar
    Join Date
    Oct 30 2008
    AZ Member #
    34773
    My Garage
    B5, B7, B8, 8V, 4M
    Location
    Big Lake, MN

    connection or the line has a break in it. You should almost be able to see oil seeping out while the engine is running. Might be a good idea to replace it just because.
    “You may recall we went to a PARK IN BOTSWANA." George W. Bush, 43rd President of the United States of America

    2020 SQ7- Wife's ride
    2018 RS3- Wish I could drive it more
    2010 A4- Why do I even own this?
    2007 A4 Avant 2.0T Titanium Package, aka "Big Red"
    2000 S4- Working?

  6. #6
    Active Member Two Rings Quaality's Avatar
    Join Date
    Jun 06 2016
    AZ Member #
    374327
    My Garage
    '08 G8
    Location
    Minnesota

    So started it up last night for a few minutes and did not see anything seeping out, would it be best to spray down the lines and under engine and wipe down clean with brake cleaner to see where it is coming out? or run car to running temp rather than just a few minutes?
    Current Vehicles: 2001 A4 1.8T 5 speed, 2008 G8, 2001 F250 Powerstroke

  7. #7
    Veteran Member Four Rings Believer's Avatar
    Join Date
    Oct 24 2011
    AZ Member #
    82979
    Location
    New Jersey

    Spraying things off will definitely help you track where the oil is coming from. Also running temp will probably also help find the leak easier as once the oil is warm it thins and can/will leak easier.

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