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Weird sound when giving contact

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Weird sound when giving contact

Old 11-02-2018, 11:49 PM
arQ is offline
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Join Date: Nov 2018
Posts: 2
Question Weird sound when giving contact

Hi guys, I'm a recent member of the Audi owners club and this is my first thread, so here goes;

I bought a used A3 8P two months ago (130.000 km), 2.0 TFSI model 2006 Sportback. Anyway, in past couple of days I've been hearing a weird clicking noise coming from center console area every time I turn the ignition key (doesn't matter if it's only a contact or an engine start up). Noise is similar to when a CD player is reading a newly put CD or some kind of processing sound (heartbeat rhythm). It last for a ~10 seconds. I made sure it's not a CD player or Aircon (since both have been turned off). I'm not 100% sure but I could swear it wasn't existing before.

A car had only an oxygen sensor changed (Lambda sensor) a week ago since it was faulty and I could detect a strong smell of unburned gas under the hood and in cabin. The car has been run through a computer (WAG-COM) and mechanic said it only had couple of temporary errors and one permanent (O2 sensor), so he cleared the rest. Did he messed up something and do I need to recalibrate again? I could live with that sound only if i'm sure there's a reason behind it and it's normal thing, otherwise it will bother me until I fix it (it's very quiet anyways but still). Let me hear your thoughts, thanks in advance!

EDIT: OK, I found the source of that unusual noise, and it's most likely an actuator motor (auxiliary heater) being faulty or not working properly. That's a common issue with this model it seems, and in a link bellow I'll post a tutorial of a guy fixing it.

By the way I'm kinda disappointed in amount of replies on this forum, this thread has been active for few months now, 3k views 0 replies. Can't believe no one at least tried to guess what might be a problem...

Last edited by arQ; 01-21-2019 at 07:42 PM. Reason: Problem found
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