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2.0 TDI 170 possible turbo failure... Help!

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by Red, Apr 20, 2014.

  1. Red
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    Red New Member

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    [Apr 20, 2014]
    Hi all, I'm new to the forums, got my first audi owned it two weeks and I've got a problem, mainly want it confirming or not plus any other useful info will be appreciated.


    I've got an 07 audi A4 avant, 2.0 TDI 170 bhp. It's done 146000 miles full audi history.


    On the way to work this morning I was on the motorway doing 70 mph (ahem) ;) with cruise control set. When the cruise control shut off and it went into limp home mode, with the glow plug light flashing on the dash. It lost all ability to make boost.


    As I was less than half a mile from work I limped it there. When I got out I could hear a light rattling! Like pins being shaken on a metal tray.


    I left it and went into work when I came out to go home the glow plug light wasn't flashing and it started fine. I went to pull away and heard the rattling. It doesn't rattle on tickover only when it's revved. I decided to nurse it home on the back roads. On the way home the light came on again, and when I pulled up to stop a cloud of white smoke came by me! It continued to smoke quite heavily, mainly white with a really faint blue at times.


    I've read a few things and one thing struck me at a certain rpm under slight load you could hear a faint groan but it was slight and went away if you accelerated slightly. People said this could be the turbo bearing.


    I'm thinking turbo has gone!!! I hope not too much more damage has been done.


    Can anyone confirm this and offer any advice?
    Also I'm thinking of taking this opportunity to maybe go hybrid? What are people's thoughts on this. There seems to be a lot if info on the 140bhp lumps but not much on this.


    Thanks Mark
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  3. r-y-e
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    r-y-e Member

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    [Apr 20, 2014]
    Take the boost pipe off near the bottom of the timing belt side and if its full of oil its blown
    My turbo cartridge actual split in two an left the intercooler full of metal shrapnel
    Don't drive until its been looked at tho its not good
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