Question about Volkswagen Jetta

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My 2007 VW jetta 2.0T is making a whistling noise when accelerating and when engine is cold. Also its burning oil like firewood. young VW tech at dealership said it may be my turbo. that sounds very expensive if it is not going to be covered under my warrenty. does a certified preowned warranty cover this problem? also is that worst case scenario? could it just be a belt or something that has come loose?

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I would tend to agree with the tech, especially if performance and milage have been on the decline. there are seals in the turbo to keep oil on the bearings, and if the turbo gets hot (which they all do), and wasnt allowed to cool by idling the vehicle a few minutes to circulate the oil on the bearings and cool them, the rubber seald eventually give out which lets lots of oil run thru into the intake and finally into the engine where its burned off. as for the warranty om unsure, but you can try looking for a used turbo, or a reman unit and install it yourself.

Posted on Mar 23, 2011

  • fuel86 Mar 31, 2011

    The whistling noise is caused by the breather valve on your cylinder head. As soon as you remove the top engine cover/air cleaner assembly you will see it right on front/top of the engine with a few hoses coming out of it. Very easy to replace. The oil burning issue is very common to the 2.0T engine and as of yet, VW hasn't found a cause or correction to the problem.

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