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Squeaking from air con?

Discussion in 'A6/S6/Allroad forum (C5 Chassis)' started by imported_alex100a, Mar 21, 2006.

  1. imported_alex100a
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    imported_alex100a Guest

    [Mar 21, 2006]
    Hi,

    Need a little advice. When I start my 2.8 V6 with the climate control switched on I get a fairly loud squeaking noise from under the bonnet which lasts anything up to about 5 seconds then stops until I restart the car.

    Any ideas what this might be? Its had a recent aux belt change so do not think its that.

    Thanks

    Alex /ubbthreads/images/graemlins/confused.gif
    #1
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  3. S4_dan
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    S4_dan Fire up the Quattro!

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    [Mar 21, 2006]
    Still could be the Aux belt....may not have been tightened up enough. Or could even be another belt. Air con uses a decent amount of power so this could be putting strain on other belts. Check them all.

    Hopefully not, but it could also be the air pump on way out...
    #2
  4. mkrd76
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    mkrd76 New Member

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    [Jul 19, 2006]
    Hi !!!
    It looks like mine problem in my previous audi A6 '98-sometimes it comes on during the driving, but after switched it off or to eco mode squeaking metalic noise go off. I checked it in service and they told me that compressor shloud be replaced...
    #3
  5. mjhamilton
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    mjhamilton Broooom Brooom Brooom!!

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    [Sep 9, 2006]
    Had the same issue for the past 3 years.. it is the electric fan that comes on when you start the aircon first thing.. mine makes a noise for about 20 seconds and then stops... if you put the system into econ mode it goes away cos the fan is stopped in the mode...
    #4

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