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  1. #1
    Registered Member One Ring
    Join Date
    Apr 02 2012
    AZ Member #

    Turbo gone, timing belt slipping, or something else?

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    I have a 2004 Audi A3 1.9tdi. I realised a couple of weeks ago that it's 10,000 miles overdue for a timing belt change

    I was driving today and when joined a motorway I accelerated and there was a sudden loud whining noise, like a dentist's drill, and I had a loss of power.

    The noise happens on any acceleration, even the lightest touch of the pedal, and the power is low.

    The fact that the noise happens with any acceleration would lead me to believe that it's not the turbo and is more likely related to the timing belt. However, the car is still driving so I'm not sure if it's something else entirely.

    Any ideas what would cause this?

  2. #2
    Veteran Member Four Rings old guy's Avatar
    Join Date
    Dec 28 2006
    AZ Member #
    My Garage
    '03 A4, '13 A5, '18 MB-GLA
    Western Maryland
    Items for Sale

    Sure sounds like a bad turbo to me. Consistent with the noise and power loss.
    A4 Motoza tuned Frankenturbo F21L mixed flow turbo / Bosch 550's / 3" MAF / TyrolSport SMIC / 034 HFC / TT 2.5" DP / Borla Exhaust / Eibach ProKit Springs / Koni Yellows / H-Sport Sway Bars / TyrolSport Brake Stiffeners / HyperShift Short Shifter / Podi
    A5 Mods to come: Little stuff so far. 20/25mm spacers / H&R OE Sport springs / 35% tint / Neuspeed Power Module / black window trim / RS grille.


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