2009 A5 3.2L Check engine light

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May 20, 2014 | 08:04 AM

furiousgtz

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AudiWorld Junior Member

Joined: Dec 2013

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2009 A5 3.2L Check engine light

Hi there,

I recently got check engine light and I got got it scanned (not dealer) and I found its P0456? Emission Leak, Gas Cap?

Can anyone help me with some common fix without taking my car to a shop. I found some that it could be faulty gas tank cap?

Thanks!

Jun 7, 2014 | 01:58 PM

tillmusiclasts

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Joined: Jun 2014

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Take it to a highly rated local mechanic. Learned my lesson the hard way. Once my light came in and as a n00b I was worried that something was wrong with the engine and so I must get it fixed at a dealership . Got slapped with a $400 bill. Out of which about $50 was parts and $350 was 'audi labor'. My local mechanic later told me he could have had it done for $100.

Jun 8, 2014 | 07:58 AM

lmariorod

AudiWorld Senior Member

Joined: Aug 2011

Posts: 863

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I'd make sure to secure the gas cap. Use an Actron OBDII code reader to erase the code. If the code reappears, you have a leak somewhere. If it does not reappear, it was likely an improperly secured gas cap.