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  1. #1
    vw754's Avatar
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    has the waterpump failed?

    A4 1.9 TDI 130BHP 2001 B6.

    TEMP is half way reading 90 as always.never starts to climb.
    water in coolant bottle =cold even when engine hot.
    took expansion (coolant bottle cap) off and left it off, incase there was air in system.....no change.

    car is loosing coolant,cant see any leaks.......any ideas?

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  3. #2
    quattrojames's Avatar
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    If the water pump was failing then I would have thought that the car would be overheating, I would think more likely the thermostat has gone.
    Ingolstance Read about my A6 HERE.

  4. #3
    vw754's Avatar
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    if it were the thermostat,would the car be using coolant? like i t was filled to maximum level then 120 miles later (motorway journey) after an hour of resting the water level was just under minimum

  5. #4
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    exactly the same problem as I have mate, its the coolant flange behind the head that 2 pipes and the temp sensor are connected to, its a tenner from the stealers but awkward to get to. I thought it was the pump as well but have now seen the water leaking from the rear of the head and the culprit is a plastic part that cracks or just leaks at the o-ring seal, the temp sender seal, or one of the 2 pipe ends.

    Mine is waiting to be picked up next fri and im going to attempt to replace it.

    Heres a write up I found:

    http://audizine.com/forum/showthread.php?t=84054

    from the excellent audidiy.com
    B4 TDI - old skool project / daily driver...if it ain't broke, it's probably an Audi...


  6. #5
    J7USS's Avatar
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    Quote Originally Posted by evilscotsman View Post
    exactly the same problem as I have mate, its the coolant flange behind the head that 2 pipes and the temp sensor are connected to, its a tenner from the stealers but awkward to get to. I thought it was the pump as well but have now seen the water leaking from the rear of the head and the culprit is a plastic part that cracks or just leaks at the o-ring seal, the temp sender seal, or one of the 2 pipe ends.

    Mine is waiting to be picked up next fri and im going to attempt to replace it.

    Heres a write up I found:

    http://audizine.com/forum/showthread.php?t=84054

    from the excellent audidiy.com
    Exactly the same prob I had also over a year ago, id have to top it up every week!

  7. #6
    vw754's Avatar
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    Nice one lads! its a friend car based in rochdale....any good audi mechanics in that area you know of ?

 

 

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