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  1. #1
    Active Member One Ring
    Join Date
    Nov 28 2022
    AZ Member #
    853058
    Location
    Colorado

    Should I be worried about this oil from the CV joint?

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    I looks like a little oil is leaking from the CV boot? Not a lot of oil but it does seem to be leaking form the CV joint.

    2019 A4 with 22K.

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  2. #2
    Veteran Member Four Rings
    Join Date
    Jul 16 2018
    AZ Member #
    422473
    Location
    Atlanta

    The CV joint sits in the middle between two cover caps. There's an inner cap, you see the wide section that is the outer wall of that inner cap. Then there's the outer cap with the boot integrated. You see the outer wall of that piece between the bolt heads and the outer wall of the inner cap. The inner and outer caps have a bead of sealant around the outer circumference (but inside of the bolt holes) to seal against the CV joint outer wall. It could well be you're just seeing that sealant. Has the shading changed/grown over time?
    2009 A4 Avant 2.0T quattro Prestige, 275k miles

  3. #3
    Active Member One Ring
    Join Date
    Nov 28 2022
    AZ Member #
    853058
    Location
    Colorado

    I only just recently purchased the car off lease. So I am not noticed a change in the last five months. I'll monitor it. Thanks for the reply.

  4. #4
    Veteran Member Three Rings Thumper3's Avatar
    Join Date
    Nov 27 2014
    AZ Member #
    298496
    My Garage
    1983 Porsche 944
    Location
    Missouri

    Don't think that's just sealant, look at the buildup on the bolt in the bottom of the picture. Looks to have been happening for some time slowly though from the buildup. I would clean it off completely so that any new seepage is easily identifiable and measurable.

    Did you get it CPO with a warranty?
    '23 A4 Allroad Prestige | District Green | Black Optics | 034 Dynamic+ Springs
    '18 TTRS - Mexico Blue | APR Stg 1 e85/TCU Tune | RSe10 Bronze | Girodisc rotors front/Neuspeed 350mm Rears | Black Optics/Sport Exhaust | Red Calipers | Red Stitching
    '14 VW Touareg TDI R-Line - White | Euro paddle shift
    '12 VW Golf R - White | Stg 3 APR | Too much to list here

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