Air-con head ache

[TomGTI]

I've recentley had my air-con system vacuum tested and regassed and all was fine and I've just changed the cabin filter myself which was filthy but the problem is the air-con isn't cold but the garage I went to said that the air-con pump is kicking in and i can hear a noisey fan working in the engine when the aircon is on but I'm not sure if this is normal.

Has anyone had this problem before or can help me out I could really do with it sorted?

Thanks

[bacillus]

Small fan should be working when your AC is turned on.

[TomGTI]

Both fans were working but it is a lot noisier when the aircon is on.

I've read there could be some sort of switch which hasn't turned on?

[Type_R]

Small fan should be working when your AC is turned on.

Unfortunately this information is not true.

On the MK4 Golfs the small fan comes on with the A/C but on the MK5 if the ambient temperature is low (I would guess less than 15C) then it does not come on straight away.

I fell into the trap of people telling me that there was something wrong as neither of my fans were coming on with the A/C with ambient temps of 10C. I tested with VCDS, both fans behaved normally. I pulled the fuse and put it back in again, no problems.

Today I started the car with an ambient temp of 16.5C, turned the AC on and the fans turned on at low speed. I asked someone on here to check their MK5 GTi as well and their's behaved exactly like mine. I know that the 2.0 TFSi Audi A3 behaves like mine too, so I doubt there is any evidence to suggest that the 'small fan always comes on with the AC.'