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Oil found in coolant - TT Audi Cars & Trucks

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No harm if:
#1. Oil comes slowly into the coolant expansion tank.
#2 There is no coolant in the motor oil. Oil becoming white as a milk otherwise.
I drove own vehicles with such condition for years. If you can't afford any repair or have a sport interest to drive such vehicle you may do it indefinitely, just add coolant and oil as needed. Your coolant tank will be oily inside and outside.

Posted on Apr 16, 2014

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  • David Gerzseny
    David Gerzseny Apr 16, 2014

    Head gssket leak on the oil side allowing oil to get into the coolant.

  • David Gerzseny
    David Gerzseny Apr 16, 2014

    Another sign of a head gasket issue is white smoke coming out the tail pipe.

  • David Gerzseny
    David Gerzseny Apr 16, 2014

    Try a sealer and pray to God! otherwise this is going to cost big bucks to fix. I would dump the car fast!

  • David Gerzseny
    David Gerzseny Apr 16, 2014

    No O2 sensor lights on or check engine lights? I doubt this will pass inspectiion the next time around.


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The lubricating and cooling systems are isolated from each other in your car. They should never mix under normal conditions. They mix typically when a crack in the engine block exists - or - if the head gasket is damaged. You will probably find the there is coolant in the oil pan, too. A white / frothy substance on the dip stick will be evidence of this.

A head gasket replacement can be a costly repair - but often significantly less than a cracked engine block. It can require a fair amount of work to determine which caused the problem. Depending on the age of the car, mileage, etc. - it may not be worth fixing / replacing. Consult a trusted mechanic to help you best determine your options.

Good luck!

Posted on Apr 16, 2014

  • john williams
    john williams Apr 16, 2014

    i think it is the head gasket, thank you...

  • Bambenek Auto LLC
    Bambenek Auto LLC Apr 16, 2014

    Vey good answer Steve.



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