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  1. #1
    Wrath's Avatar
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    Grinding Rubbing Noise when foot offf accelerator

    I've noticed this over the past few months but when doing between 20-30, if I take my foot of the accelerator quickly there is a rubbing/grinding noise that lasts for about a second. There isn't any problem with performance and doesn't come on when accelerating. The more sudden you remove your foot, the worse it is.


    Any ideas?
    Nathan

    Red Audi A4 B7 S-Line with Leather/Alcantara interior

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  3. #2
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    Stab in the dark here Wrath as a noise could be anything I supose, at one of my many visits to Audi the technician told me that the noise I was hearing is the turbo spooling in the opposite direction to its normal direction between gearchanges, it is part of the design apparently. That is for a 2.0tdi 170 tho, not sure what engine your cars got mate.

    Dougie

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    Wrath's Avatar
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    Quote Originally Posted by D8UGF View Post
    Stab in the dark here Wrath as a noise could be anything I supose, at one of my many visits to Audi the technician told me that the noise I was hearing is the turbo spooling in the opposite direction to its normal direction between gearchanges, it is part of the design apparently. That is for a 2.0tdi 170 tho, not sure what engine your cars got mate.
    Cheers Dougie. I've had a look on the internet and there's a few posts about it being the wastegate and a couple of other posts to say Audi techs advise leaving it alone and it isn't a problem. It just sounds awful and wasn't sure if it was a sign of something going wrong. My engines a 140 but can't imagine too much difference with the 170.

    Nathan
    Nathan

    Red Audi A4 B7 S-Line with Leather/Alcantara interior

    Current Mods: Painted Brake Calipers, Gear-driven oil shaft assembly, RS4 grille, Debadged, B8 MFSW, Cruise Control, RS4-style Fog Surrounds, Satin Black Cupra R Splitter, RS4 RARB, Clear Corner headlights, 2011 RNS-e, MTEC Drilled and Grooved Brake Discs.

  5. #4
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    Hi Wrath

    I have a 2.0tdi 170 which does exactly the same. The noise sounds like brake pads grinding on the discs. When I took it back to Audi the mechanic told me that all a4 diesels make this noise. I think i'm being fobbed off, but can't find anyone who will offer a diagnosis.
    Just wondering if you have had anyone tell you what the symtoms might point to?
    Let me know if you do.
    Thanks
    S

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    Old post but I'm hearin the same noise and wondering if its a problem or just supposed to be there? Did any if you get good answers as to what te noise is or wether its normal or not ? Just had June at a German specialist garage and they said they cudnt hear anything wrong and no codes but te noise I hear sounds rough! And sometimes flutters in low gears

    Quote Originally Posted by seroquel View Post
    Hi Wrath

    I have a 2.0tdi 170 which does exactly the same. The noise sounds like brake pads grinding on the discs. When I took it back to Audi the mechanic told me that all a4 diesels make this noise. I think i'm being fobbed off, but can't find anyone who will offer a diagnosis.
    Just wondering if you have had anyone tell you what the symtoms might point to?
    Let me know if you do.
    Thanks
    S

  7. #6
    Wrath's Avatar
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    Still running and the noise still there. No lights on dash and everything else seems fine.
    Nathan

    Red Audi A4 B7 S-Line with Leather/Alcantara interior

    Current Mods: Painted Brake Calipers, Gear-driven oil shaft assembly, RS4 grille, Debadged, B8 MFSW, Cruise Control, RS4-style Fog Surrounds, Satin Black Cupra R Splitter, RS4 RARB, Clear Corner headlights, 2011 RNS-e, MTEC Drilled and Grooved Brake Discs.

 

 

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