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Activated charcoal filter N80 is ticking

Discussion in 'A3/S3 Forum (8L Chassis)' started by sitrials, Dec 20, 2007.

  1. sitrials
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    sitrials Member

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    [Dec 20, 2007]
    got home from work this morning its -2 outside bbbbuuuurrrr!
    before i turned my engine off i opened my door and heard a ticking a bit like injectors but way louder coming from near my coolant expansion tank, it turns out thanks to elsa its the n80 activated charcoal filter but it ticking really loud, so i turned the engine off and then back on it started ticking again.
    anyone got any ideas???
    #1
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  3. mattm
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    mattm goldmember.

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    [Dec 20, 2007]
    Totally normal mate?? happens on all VAG cars (maybe all cars probably)
    It returns unused fuel back to the tank, so the noise you hear is the solenoid pulsating.
    Sorry if you already knew that, just thought id say it. Matt
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  4. sitrials
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    sitrials Member

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    [Dec 20, 2007]
    its like ten times louder than usual though!
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  5. s3ollie
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    s3ollie Member

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    [Dec 20, 2007]
    you can unplug it but not sure if this will have any adverse effects
    #4
  6. benk
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    benk Member

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    [Dec 21, 2007]
    I was once told they work a bit harder if you've been sat in traffic.
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