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  1. #1
    Biodiesel Purrrr

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    coolant / water leak - pipe to block

    got a coolant leak from where plastic flange / pipe with blue temp sensor meets the block -
    pipe is part 028 121 132

    trying to post pics - bit of rust colour around it as previous owner had been topping up water no coolant!

    I have replaced the sealing washer / O-ring 037 121 687 [original dealer part],
    but water still drips out, even without pressure from running it...

    so - should I try another O-ring from another supplier or do the plastic flanges warp over time?
    or, if the flange is warped could I sand/file the edges where the bolts pass though to allow the O-ring to seat onto the head better?

    that ammount of water getting through looks too much for K-seal but may be wrong

    [1998 TDi AFN 160k on the clock]
    TDi Biodiesel sippin' A4 Avant - EGR blanked
    "Cars are good but Jeremy Clarkson is a dick."



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  3. #2
    "Stick a V8 in it!"

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    The plastic flanges sometimes crack, or it could be the oring between the flange and the metal coolant rail?

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  4. #3
    Biodiesel Purrrr

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    hi mate, thanks for help again!
    trying not ot make a habit of it but been having too much randon trouble on this engine -
    new car - don't know why I sold my AHU engined TDi...

    anyway - took off the flange and there's a hairline crack inside where the top metal guide for bolt hole is - damn!

    I've seen 3rd party part for £8, dread to think what the dealer will want...
    any recomendations for where to source one?

    Thanks!
    TDi Biodiesel sippin' A4 Avant - EGR blanked
    "Cars are good but Jeremy Clarkson is a dick."



  5. #4
    "Stick a V8 in it!"

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    If its the one on the side of the block, its 12quid or thereabouts from Audi.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


 

 

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