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  1. #1
    Veteran Member Four Rings badger.'s Avatar
    Join Date
    Mar 31 2014
    AZ Member #
    168335
    My Garage
    '18 RS3 | '05 S4 Avant
    Location
    KY

    Looking for small coolant crossover oring part #

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    see attached

    anyone have the part number for the oring that goes behind the indicated coolant lines?

    edit: (not my engine or pic) photo credit this thread
    Attached Images
    '18 RS3 Glacier White: DS1 Stg 2 | Wagner EVO1 IC | 034 4" Turbo Inlet | 034 4" Intake
    '05 S4 Avant Brilliant Red: JHM Tune | JHMv1 Headers | Fast Intentions Catback | Ported IM & Spacers | JHM LWCP | JHM ATF Cooler | Thor Skid Plate | Koni Yellows | Apikol Rear Diff | JHM LW Rotors | AudioQ 1200D w/Dual 10" CVRs

  2. #2
    Senior Member Three Rings
    Join Date
    Jul 13 2014
    AZ Member #
    263852
    My Garage
    1997BMWZ3
    Location
    Daly City,CA United States

    did you pull your motor out again ?

  3. #3
    Veteran Member Four Rings badger.'s Avatar
    Join Date
    Mar 31 2014
    AZ Member #
    168335
    My Garage
    '18 RS3 | '05 S4 Avant
    Location
    KY

    No, I stole the pic from another thread. But one of those small crossover lines is dripping coolant. No idea how the heck I am going to reach it well enough to change it, but I need the o-ring before I can try!
    '18 RS3 Glacier White: DS1 Stg 2 | Wagner EVO1 IC | 034 4" Turbo Inlet | 034 4" Intake
    '05 S4 Avant Brilliant Red: JHM Tune | JHMv1 Headers | Fast Intentions Catback | Ported IM & Spacers | JHM LWCP | JHM ATF Cooler | Thor Skid Plate | Koni Yellows | Apikol Rear Diff | JHM LW Rotors | AudioQ 1200D w/Dual 10" CVRs

  4. #4
    Senior Member Two Rings Bonz099's Avatar
    Join Date
    Jun 30 2015
    AZ Member #
    339925
    Location
    Rockville, MD

    Ill load up etka when i get home and get you a number. Unless someone beats me to it.

  5. #5
    Veteran Member Four Rings badger.'s Avatar
    Join Date
    Mar 31 2014
    AZ Member #
    168335
    My Garage
    '18 RS3 | '05 S4 Avant
    Location
    KY

    That would be great. thank you
    '18 RS3 Glacier White: DS1 Stg 2 | Wagner EVO1 IC | 034 4" Turbo Inlet | 034 4" Intake
    '05 S4 Avant Brilliant Red: JHM Tune | JHMv1 Headers | Fast Intentions Catback | Ported IM & Spacers | JHM LWCP | JHM ATF Cooler | Thor Skid Plate | Koni Yellows | Apikol Rear Diff | JHM LW Rotors | AudioQ 1200D w/Dual 10" CVRs

  6. #6
    Veteran Member Three Rings
    Join Date
    Feb 18 2014
    AZ Member #
    146977
    Location
    Arizona

    those aren't coolant ports, those are for the sai and they use metal gaskets. The larger ports above those are where the coolant pipes connect, and those use o-rings, so maybe that's the leak. Part # for those was n90989503 on my car, but you might want to double check etka in case there is a vin split. Might want to check the heater hose that connects to the rear coolant pipe cuz it could be dripping from there, too

  7. #7
    Senior Member Two Rings Bonz099's Avatar
    Join Date
    Jun 30 2015
    AZ Member #
    339925
    Location
    Rockville, MD

    Can you get me your vin? just in case there's a part split?

  8. #8
    Veteran Member Four Rings badger.'s Avatar
    Join Date
    Mar 31 2014
    AZ Member #
    168335
    My Garage
    '18 RS3 | '05 S4 Avant
    Location
    KY

    Quote Originally Posted by 2004B6S4 View Post
    those aren't coolant ports, those are for the sai and they use metal gaskets. The larger ports above those are where the coolant pipes connect, and those use o-rings, so maybe that's the leak. Part # for those was n90989503 on my car, but you might want to double check etka in case there is a vin split. Might want to check the heater hose that connects to the rear coolant pipe cuz it could be dripping from there, too
    well hmm, now that I think about it, you are right.... but I am 95% sure I saw that crusty pink shit all around the ones I circled. But if they are SAI how would coolant get there. Maybe it is from those larger ones trickling down and I missed it. I have that part# already, heck I might even have some spares left over from the timing job.

    - - - Updated - - -

    vin is WAUPL68E05A107640
    '18 RS3 Glacier White: DS1 Stg 2 | Wagner EVO1 IC | 034 4" Turbo Inlet | 034 4" Intake
    '05 S4 Avant Brilliant Red: JHM Tune | JHMv1 Headers | Fast Intentions Catback | Ported IM & Spacers | JHM LWCP | JHM ATF Cooler | Thor Skid Plate | Koni Yellows | Apikol Rear Diff | JHM LW Rotors | AudioQ 1200D w/Dual 10" CVRs

  9. #9
    Senior Member Two Rings Bonz099's Avatar
    Join Date
    Jun 30 2015
    AZ Member #
    339925
    Location
    Rockville, MD

    I cant find it, which one do you think it is on the drawing?
    http://imgur.com/gallery/uYfed

  10. #10
    Veteran Member Three Rings
    Join Date
    May 18 2012
    AZ Member #
    93721
    My Garage
    2005 S4
    Location
    Portland, OR

    Quote Originally Posted by Bonz099 View Post
    I cant find it, which one do you think it is on the drawing?
    http://imgur.com/gallery/uYfed
    It's not on the cylinder head drawing, it's on 121-63, water cooling, feed. Item # 47, part number is N90989503 as the other guy said a few posts up.

  11. #11
    Senior Member Two Rings Bonz099's Avatar
    Join Date
    Jun 30 2015
    AZ Member #
    339925
    Location
    Rockville, MD

    oh my bad, well good luck man.

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