heat blowing out of left side vent (near door) when A/C is one...

A8CT · 07-08-2005, 01:14 PM

Didn't someone else have this problem recently ? Just started yesterday, I'll pull the codes tonight. What controls the flow and temp to an individual vent ? Another damper motor ?

thanks
Bob

Jkay · 07-08-2005, 02:19 PM

then it's probably low A/C charge. This causes one side to be warm and the other cold.

If you have the CLICK then one of your damper vane actuation motors is toast and you must use VAGCOM to find out which one, then replace it.

A8CT · 07-08-2005, 02:50 PM

it must be another one. I'll post the codes
tomorrow.

PaulW · 07-09-2005, 01:47 PM

But every time this comes up, I'm always wrong.....ttuling posted about this....so did Jack who originally had the problem I think.

On the safe side, check the fuses.

A8CT · 07-09-2005, 06:41 PM

roughyear · 07-12-2005, 12:33 PM

if so.. it's just feron level that is LOW... mine was doing the same thing and i just had it recharged ($120 with diagnostic) and it's blowing very cold now.

Aces · 07-21-2007, 08:00 AM

Has anyone found a resolution to this issue? I have a 2004 A6 4.2. Several times recently, after driving for 30 minutes or so with the A/C on, heat will start pounding from the driver's side vent. Can't get it to stop.

Outside air temp was around 85 degrees, A/C set to 72ish. Once, the heat was coming out of the left center vent too. Other times it was just the driver's vent by the door.

Anyone find out what causes this?

Bill

07-08-2005, 02:19 PM	#2
Jkay Member Garage is empty, add now Join Date: Apr 2003 Posts: 2,300	Is there a loud CLICK CLICK every 7 seconds? If not ... then it's probably low A/C charge. This causes one side to be warm and the other cold. If you have the CLICK then one of your damper vane actuation motors is toast and you must use VAGCOM to find out which one, then replace it. __________________ ------------------------------------- 18" 2006 Soft 5-Spokes - Goodyear F1s - Milltek Exhaust - Clear Sides & Corners

07-08-2005, 02:50 PM	#3
A8CT AudiWorld Super User Garage is empty, add now Join Date: May 2003 Posts: 3,131	No clicking... I replaced the damper motor in the center under the hood about 12 months ago so.. it must be another one. I'll post the codes tomorrow. __________________ 2005 Audi A8L 2000 A8, silver/blk, all options

07-09-2005, 01:47 PM	#4
PaulW AudiWorld Super User Garage is empty, add now Join Date: Jul 2001 Posts: 18,216	Check the fuses, there is one for each side But every time this comes up, I'm always wrong.....ttuling posted about this....so did Jack who originally had the problem I think. On the safe side, check the fuses. __________________ 07 S8

07-09-2005, 06:41 PM	#5
A8CT AudiWorld Super User Garage is empty, add now Join Date: May 2003 Posts: 3,131	good call, I never would have thought that there was more than one.. __________________ 2005 Audi A8L 2000 A8, silver/blk, all options

07-12-2005, 12:33 PM	#6
roughyear Junior Member Garage is empty, add now Join Date: May 2005 Posts: 747	is there COLD air coming from passenger side??? if so.. it's just feron level that is LOW... mine was doing the same thing and i just had it recharged ($120 with diagnostic) and it's blowing very cold now. __________________ ------------------------------ 1999 A8 Pearl White "I am what I am......" ------------------------------

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07-21-2007, 08:00 AM	#7
Aces New Member Garage is empty, add now Join Date: Dec 2004 Posts: 16	Re: heat blowing out of left side vent (near door) when A/C is on... Has anyone found a resolution to this issue? I have a 2004 A6 4.2. Several times recently, after driving for 30 minutes or so with the A/C on, heat will start pounding from the driver's side vent. Can't get it to stop. Outside air temp was around 85 degrees, A/C set to 72ish. Once, the heat was coming out of the left center vent too. Other times it was just the driver's vent by the door. Anyone find out what causes this? Bill

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