Climate Control wont come on.

[sw1805]

Throughout the winter, I have been running heat on "Econ" all the time. With the occasional warm day recently I tried to change to Climate control by pressing the Econ button, which hopefully should take it off.
The Econ light will not go off and will not start the climate control .
All I can get is luke to warmish air through with the Econ light on even if set to LO.
The system worked fine last summer and had the filters treated for bacteria etc.
Any ideas please ( Fuse ?, canister fluid levels in system? or just the fact not a good idea to run on Econ all winter !)

Many thanks

Steve.

[a8 tech]

If the eco button is staying on all the time this indicating a fault with the air con.Usual suspect low pressure from natural wastage(lack of use)or the pressure swithch is defective.Regas system and clear the fault memory first.It is always a good practice to use the air con when the outside temp allows in the winter to lubricate the seals and circulate the system.New models have semi automatic activation and a smallduty cycle is applied to the compressor to keep a constant circulation to prolong the pressure levels and preserve the seals.Best regards Jon

[miniredcooper]

Hi steve,
I had similar problems with my 03 car. Jon's advice is spot on especially on using the system periodically over the winter months to keep things lubricated. I had the re-gas done and it made no difference (temp still 20 degrees at the vents). I'm in the UK so I had the re-charge done at Kwik Fit who charge £44.95 and offer a reduce the temp at the vents by 10% or money back. However as ever the service at an Audi dealer is second to none and would always reccomend them as a first option - but unfortunately I couldn't justify the £120+ they wanted for the re-charge.
My symptoms were that the econ LED stayed on at the same time as auto on - in effect the compressor was switched off at all times therefore no chill just external air coming in. I had loads of conflicting advice given on what the problem was from compressor to control panel faulty. (people wanting to charge me anything from £200-£600+ to repair)
I got my money back from K-Fit as they couldn't lower the temp and by searching other forums came up with the solution. Replacement of the thrust sensor/high pressure switch on the air con radiator which solved the problem for a £40 parts charge (part no.8E0 959 126). The fitting was straightforward (15-20minute job depending on your spanner wielding ability) with basic tools (2 x 17mm spanners and some torx head screwdrivers). The system doesn't leak down (as some will try to tell you) when you remove the old part as the switch is protected by a safety valve.

I'd get your re-charge sorted first - but if this doesn't solve your problem give your dealer a shout or if you are up to a bit of diy give me a shout for a bit more detail.

After my re-gas and replacement of thrust sensor my air-con now blows at a chilly 6.2 degrees - much more like it....

I don't have the equipment to reset the fault memory - I'll get that done at next service hopefully but system still works all the same.

Let us know how you get on.

[sw1805]

Many thanks. I am getting the re-charge done next week so will let you know.

[audiowner]

Steve if you are looking to re-gas, shop around.

I managed to get a re-gas done for £20 +vat a couple of years back at a local garage.
A recent re-gas i managed to blag free from an audi dealer as they hadn't spotted it needed it on a service

It only takes the time for them to have a mug of tea & is hardly rocket science to do

BUT please don't ever leave the climate control on Econ for a period of time.
It's totally false economy

[davidlandy]

Originally Posted by miniredcooper

Hi steve,
I had similar problems with my 03 car. Jon's advice is spot on especially on using the system periodically over the winter months to keep things lubricated. I had the re-gas done and it made no difference (temp still 20 degrees at the vents). I'm in the UK so I had the re-charge done at Kwik Fit who charge £44.95 and offer a reduce the temp at the vents by 10% or money back. However as ever the service at an Audi dealer is second to none and would always reccomend them as a first option - but unfortunately I couldn't justify the £120+ they wanted for the re-charge.
My symptoms were that the econ LED stayed on at the same time as auto on - in effect the compressor was switched off at all times therefore no chill just external air coming in. I had loads of conflicting advice given on what the problem was from compressor to control panel faulty. (people wanting to charge me anything from £200-£600+ to repair)
I got my money back from K-Fit as they couldn't lower the temp and by searching other forums came up with the solution. Replacement of the thrust sensor/high pressure switch on the air con radiator which solved the problem for a £40 parts charge (part no.8E0 959 126). The fitting was straightforward (15-20minute job depending on your spanner wielding ability) with basic tools (2 x 17mm spanners and some torx head screwdrivers). The system doesn't leak down (as some will try to tell you) when you remove the old part as the switch is protected by a safety valve.

I'd get your re-charge sorted first - but if this doesn't solve your problem give your dealer a shout or if you are up to a bit of diy give me a shout for a bit more detail.

After my re-gas and replacement of thrust sensor my air-con now blows at a chilly 6.2 degrees - much more like it....

I don't have the equipment to reset the fault memory - I'll get that done at next service hopefully but system still works all the same.

Let us know how you get on.

my air con isnt working - went to have it regassed at KwikFit and they wouldnt do it as they said that the fan wouldnt come on and that could be my trouble.

is this linked to the pressure sensor? I have heard before that these can fail commonly- if so does anyone have a piccy of it so I can see what I am looking for to change - also is there a way to test it?

thanks All

Dave