Hi all
I'm looking for assistance with my aircon on my B6 A4.
The long and short of the problem is the aircon sometimes works brilliantly, kicking out ice cold air, while other times it's barely any cooler than opening the window!
So far I have had the system fully drained, vacuumed and refilled with the correct amount of gas (500g if memory serves). 345g was retrieved during this process so while it was lower than optimum, it had never ran out.
I have replaced the G65 sensor
I have replaced the HVAC controller for the last B6 MY04 variant
I have checked for fault codes, there has been none.
I have opened every single cabin blend motor, and lubricated the motor gears with silicone oil, and then run a aircon recalibration on VCDS.
It's a really odd issue. Often it manifests itself during a long journey as the trip starts with ice cold air but then it get's warmer and warmer. I believe I have captured the results on VCDS but never are any faults recorded.
When it's working correctly I see this in VCDS
Today I decided to change the G65 sensor for a new version just in case it was faulty. A new Mahle sensor is now fitted but it has made no difference and after a drive the system warmed back up so I captured it on VCDS and it looked like this
If anyone can point me in the right direction I would be grateful. I don't believe it's a gas issue, and G65 is new. Any other ideas?
Thanks in advance
I'm looking for assistance with my aircon on my B6 A4.
The long and short of the problem is the aircon sometimes works brilliantly, kicking out ice cold air, while other times it's barely any cooler than opening the window!
So far I have had the system fully drained, vacuumed and refilled with the correct amount of gas (500g if memory serves). 345g was retrieved during this process so while it was lower than optimum, it had never ran out.
I have replaced the G65 sensor
I have replaced the HVAC controller for the last B6 MY04 variant
I have checked for fault codes, there has been none.
I have opened every single cabin blend motor, and lubricated the motor gears with silicone oil, and then run a aircon recalibration on VCDS.
It's a really odd issue. Often it manifests itself during a long journey as the trip starts with ice cold air but then it get's warmer and warmer. I believe I have captured the results on VCDS but never are any faults recorded.
When it's working correctly I see this in VCDS
Today I decided to change the G65 sensor for a new version just in case it was faulty. A new Mahle sensor is now fitted but it has made no difference and after a drive the system warmed back up so I captured it on VCDS and it looked like this
If anyone can point me in the right direction I would be grateful. I don't believe it's a gas issue, and G65 is new. Any other ideas?
Thanks in advance
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