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  1. #1
    Reverse Gear

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    Feb 2011
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    NOOB! 2.0TDI turbo.....

    HI!

    just bought a 2004 a3 2.0 tdi....... im new to the turbo diesel world lol and was wondering about certain noises coming from the engine lol

    right........ when the engine is around 1900-2100rpm..... there is a high pitch whistle/hiss coming from the engine? is the turbo acting normal or something wrong with the turbo... i cant really hear after 3000 rpm..... it also makes this sound when i take my foot off the accelerator at around the same RPM too like a dump valve lol but very high pitched and i know diesels dont have dump valve..... is it just the sound of the turbo slowing down as i take my foot off the gas?......

    im hoping my turbo isnt fcuked its only done 43000 miles..... :S

    am i worrying about nothing or worrying about something!

    fanx

    chris

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  3. #2
    micasb's Avatar
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    Can you somehow do a small clip so we can ear theat sound?
    It would help us helping you

  4. #3
    1st Gear

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    changing gear jus bfore the power kicks in 18 - 20 does cause a dump on any turbo car.

  5. #4
    SimonAshley's Avatar
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    Mine makes this noise too.
    Think this is the reason:
    Leaky boost pipe, 2.0 TDI - solution?
    2009 - A4 S-line 2.0TDi

  6. #5
    S3 MRU's Avatar
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    this noise is the impellor building boost. Every turbo does it and it in no way means your turbo is failing. Its completely normal a leaky boost pipe will hiss. (One of mine blew up and i just fixed it )
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