EM TuningJMB Retrofits
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  1. #1
    jonnycraig's Avatar
    1st Gear

    Join Date
    Jun 2009
    Port Talbot

    Have I got an airlock in the coolant?

    Hey guys, I recently had my radiator replaced (about 3 weeks ago) and noticed on a few occasions that there was no hot air blowing inside the cabin, over the past 2 days it still blows cold even after a 30 mile journey. The radiator is warm/hot as expected but the coolant in the expansion bottle is only lukewarm, with no pressure when top taken off?

    1996 A4 B5
    1.9TDI SE

    Gone but not forgotten
    Audi A4 2.5TDI Quattro
    Skoda Octavia 1.9SDI (Wont be missed lol)

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  3. #2
    Reverse Gear

    Join Date
    Mar 2012
    Hartland , Devon
    have you try leaving cap off expansion tank , run engine with heater on hot and fan flat out , get engine up to running temp with water ready to poor in if needed , give water pipes a squees now and then , this will work if all being well

  4. #3
    Broken Byzan's Avatar
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    Apr 2004
    Cardiff, United Kingdom

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    you will need to release the heater pipe from the matrix inside the skuttle. This will reveal the bleed hole. Run the engine until fluid is flowing from the uncovered hole and then refit.

    Job done. They are notorious for not self bleeding



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