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Spot of mayonnaise under the oil cap...

_G_ Feb 16, 2013

  1. _G_

    _G_ Active Member

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    She's a thirsty girl, 2.0 TFSI 8p2 S-Tronic. Was topping up 1 quart of oil after 800 miles and noticed some white gunk under the oil cap rim...

    Half of it was covered at least but it was not too thick...

    Is this a head gasket job? How much would that cost? I think it is pre-warning signs anyway. The car runs fine. Does not over heat. Idles fine etc. I have been driving about 50 motorway miles a day (5 days a week) and need it for work!!

    No visible leaks on any coolant hoses.

    Any advice as to what it may be, if its a common problem and the damage to the wallet?

    Many Thanks!
     
  2. Boon

    Boon Active Member

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    Depends on how much 'mayo' there is, and also the temperatures of both ambient & engine...

    Could quite simply be condensation
     
  3. chris.vincent3

    chris.vincent3 Own a BMW now, HOWEVER I still own VCDS! VCDS Map User

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    Is it on the dipstick? If it is will probably be head gasket, if not will probably be condensation, however 50 motorway miles should clear it.
     
  4. audicruiser

    audicruiser Audi Heaven

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    Normal for this time of year with these engines. A good hard run (non motorway as the engine isn't working hard then) in the country will clear it.
     
  5. voorhees

    voorhees Moderator Staff Member Moderator Team V8 Audi S5 s tronic

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  6. _G_

    _G_ Active Member

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    cheers lads
    none on the dipstick and oil looks fine on the dip stick too i.e. not watery
    I cleaned it off... took it for a country road run and its all good so far.

    No coolant loss so hope it stays good.
     
  7. The Governor

    The Governor Active Member

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    Not that I'm an oil officianado or anything, but I wonder if it would help putting a different oil in, like 5w20 as that will heat up more quickly...
     
  8. audicruiser

    audicruiser Audi Heaven

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    No! Stick with what it recommended. Changing the oil weight will lead to other issues!
     

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