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  1. #1
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    A4 Avant small coolant leak

    Hi Guys, I was wondering if someone could help me out here. I've just bought a 2008 1.9 TDi A4 Avant s-line. I have noticed that there is a very small leak around the thermostat housing area.

    19AVBthermostat1.jpg

    It's this metal pipe (second picture arrowed) I think which goes into where the thermostat goes and then into the heating matrix for the inside of the car. I can feel it's a little damp under the pipe and there is a small ledge for it to drip onto so there is a small amount on there.
    Can anyone shed some light on this for me to fix/how much it would cost from a dealer to fix?

    I don't think it's very serious at the moment because when I unscrew the expansion tank it has got lots of pressure.

    Many thanks
    Tom
    Last edited by tomyoud; 9th January 2014 at 12:48.

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  3. #2
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    I reckon a new o-ring would possibly fix this unless the pipes been damaged, if the stats been changed its possible o-ring was fitted badly, it would need removing ideally to inspect & resolve, having a spare new o-ring to fit.

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  4. #3
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    It doesn't look damaged....it's just a metal pipe. Do you know if you can just order a single o-ring for it?

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    Yes you can.

    OEM RETROFITS - CRUISE CONTROL - SAT NAV - BLUETOOTH - AMI - HEADLIGHT SYSTEMS

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

 

 

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