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A\C Noises

Discussion in 'A3/S3/Sportback (8P Chassis)' started by cdb2, Nov 6, 2005.

  1. cdb2
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    cdb2 Member

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    A couple of us have noticed we get funny noises from the a\c when warming up, knocking and ticking noises, almost like something is expanding. Usually only does it from cold and then disappears. Always done it since day one.

    Is this normal, does everyone get them?

    Cheers. /ubbthreads/images/graemlins/beerchug.gif
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  2. johnmv55
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    johnmv55 Member

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    No, nothing on the two A3's I have owned, both quiet as a mouse on the A/C front
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  3. mandyray
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    mandyray Member

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    So far I haven't noticed any noises from the A/C but my previous car used to do this a lot (206GTi).
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  4. Amchlolor
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    Amchlolor Active Member

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    No noises coming from the A/C but,now that the weather is getting cold,I have noticed it's performance is poor compared with my previous A4.
    My A3 mists up far more readily.
    #4
  5. stratos
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    stratos Member

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    [ QUOTE ]
    A couple of us have noticed we get funny noises from the a\c when warming up, knocking and ticking noises, almost like something is expanding. Usually only does it from cold and then disappears. Always done it since day one.

    Is this normal, does everyone get them?

    Cheers. /ubbthreads/images/graemlins/beerchug.gif

    [/ QUOTE ]

    Dont know about the A3 but my Passat has gone from a similar ticking to a chugging sound. Apparently it is the flap which seals the air flow when you switch to "recirculate" which expands when warm and shrinks when cold. It is fitted with a cog mechanism which causes a clicking sound when it tries to move the flap or check its position. Something in the Passat has tipped it over the edge and now it just makes a constant "chug-chug-chug" sound ALL THE TIME.
    I would suggest you get it checked if its causing you concern...Total dash removal on the Passat just to replace the flap/cog combo (2quid for parts, couple of hundred for labour) /ubbthreads/images/graemlins/mad.gif
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  6. cdb2
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    cdb2 Member

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    Thanks for that. Mine just chugs when cold so guess it is just expanding and contracting.
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  7. benw123
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    benw123 Moderator

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    My Sportback does it as well. You hear a faint clicking from somewhere in the dash.
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  8. Banwell
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    Banwell previously LeeS3

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    yep me too when cold..
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  9. bacardi
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    bacardi Active Member

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    [ QUOTE ]
    No noises coming from the A/C but,now that the weather is getting cold,I have noticed it's performance is poor compared with my previous A4.
    My A3 mists up far more readily.

    [/ QUOTE ]


    yup, mine is poor at demisting, only noticed this week when the winter finally hit!

    also get a strange ticking sound, comes from the passenger footwell?
    #9
  10. Obion
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    Obion New Member

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    I get the same sounds coming from the dashboard. When I turn the heat up (about 23-24 c) I hear the noises. Sounds like the dashboard or something else is expanding due to heat.
    Hope is nothing serious.
    #10

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