A6 Climate problems

[G-P]

Can anyone help?

I have a MY 2005 Audi A6 Avant and the climate control just wants to blow hot air. Has anyone experienced the same problem?

Many Thanks,

[Dr G]

Do you mean it blows 'hot' regardless of temperature setting or just the AC not working?

If it's stuck hot quite possibly a flap motor stuck/dead somewhere.

[G-P]

Yes, it blows hot regardless. I have already had the A/C checked and its all ok.

[Tame Technician]

Either the heater pump/solonoid unit under the bonnet. (starting to becoming common on newer A6)

or

One of the heater flap servo motors. You will have to do some diag to find out which one.

Get the fault memory checked first, but that doesnt always show anything for these.