A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

AC problems

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Old 04-12-2008, 02:18 PM
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Default AC problems

AC seems to only be working on the passenger side no VAG-COM errors in the system, some kind of door sticking .. both sides are on LO but only the pass side seems to be cold driver side is cool but not cold.

Thanks
Matt
Old 04-12-2008, 03:12 PM
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Have an AC shop use a "sniffer." You may have a leaking evaporator.
Old 04-12-2008, 03:32 PM
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Default My money is on a bad evaporator.

You have a leak somewhere, and the evaporator is the most likely suspect. As the freon gets low, the passenger side is cooler than the driver side. BTDT.

Do a seach for "artic wind" for my four part post on AC issues in the wife's A6.
Old 04-13-2008, 07:58 AM
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Default Re: Have an AC shop use a "sniffer." You may have a leaking evaporator.

The pressure is spot on at 35LBs on the low side running, sits rock steady. So I dont' think it's a System problem there arn't two AC systems for both side of the car are there?

Matt
Old 04-13-2008, 12:17 PM
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Correct. Just one system.
Old 04-14-2008, 05:50 PM
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Default ok so one system cold on pass side not on drivers

Temp sensors? air diverter/mixer? or the infamous AC control unit what is the most likely canidate.

Matt
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