Chris NottAH Fabrications
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  1. #1
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    Brown sludge 1.9 tdi

    In the header tank and coolant level was low. Should I be worried about the head gasket? Cars done 110k miles

    Thanks

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  3. #2
    a4 cabrio's Avatar
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    i had something similar to that in my old mk4 golf tdi's header tank, it was just after a service i noticed it, apparently it was different types of coolant that were mixed together and had a reaction which caused the brownlooking stuff

    a good flush and proper coolant used and it was sorted, hope you get yours sorted out
    2005 Audi A4 Cabriolet 2.5 V6 TDI S Line 163BHP
    Now Remapped to 195BHP

  4. #3
    simon.m's Avatar
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    I think when the head goes its more a creamy colour. Mate does it smell of oil

  5. #4
    kite's Avatar
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    someone has mixed the coolant's,
    Drain and flush, refill with G12++
    A4 (b6) 2.5 TDi QS Saloon.

  6. #5
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    I see. Thanks. Think I do have a leak though as level keeps dropping. Oil is ok and not emulsified

 

 

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