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Discussion Starter · #1 ·
So I parked my '11 treg and left it running while my wife waited in the car and I ran in to the convenience store.

I was waiting in line and I could hear my engine running when the automatic doors opened in the store.

Anyone else notice their engine is loud when the car is parked and running. Obviously I can't hear it when I'm driving,

Thanks!
 

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I'd check/replace the coolant temp sensor. My 2004 touareg had a bad coolant temp sensor and one of the fans would run super loud (especially for about 10 minutes after the car was turned off. Its a cheap fix if you DIY.
 

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As a 2011 I assume it is under warranty so there's nothing for the OP to do in terms of replacing anything.

If it was hot outside and you had the aircon working, and you had been waiting for the store to open, it's possible you are hearing the fans cutting in as they should to deal with the lack of airflow that, in motion, would normally cool the car.
 
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