dd

Both fans should operate when the aircon is on, yes.

Open the bonnet and youll see them both at the front if you peek down.

I havent had a chance to visually check myself yet, Ive been painting the calipers until it rained.

Could it be something simple like a fuse that is faulty.

Worst case scenario?

I dont seem to have much luck with cars and airon, my last car had the aircon taken out by a badger.

If one fan is going then it wont be the fuse, most likely cause would be the motor has burnt out. In most cases it wont make a difference, but if you drive the car hard then it may overheat.

Ive had a look and yes the small fan only comes on when the aircon is on, I assume the larger one should be on all the time then?

This has put a spanner in the works as I wanted to get a remap done, so I guess It would be prudent to respolve this before shelling out on a remap?

Yes both fans should run with the A/C on.

I had the large fan fail in my previous Mk I octy... early summer I didn't have a problem, but as the heat started going up to >30C it was obvious the A/C wasn't really working all that well. I went to have it regassed and they told me it was OK (apparently their machine measured the coolant/oil mixture *after* they removed it, so I was charged anyway) but the large fan wouldn't work so it couldn't raise pressure or something like that, I'm not a heat pump geek. Replacing the fan was bloody expensive, about 270 euros 3 years ago.

Mind you, the car didn't have a problem, the wee fan was perfectly capable of cooling the engine even while driving it hard at >30C ambient temperature, so I guess that it should provide sufficient cooling for the A/C radiator in colder climates. In scorching heat, it didn't do much at all though. What ****ed me of is that I'm quite certain it failed *before* the warranty expired (May 31st) but I only bothered to visit the dealer in july when I couldn't deal with the A/C not working as good as it used to.

One of the first things I noticed in my Mk II is that it only has one fan, hope it doesn't fail

The large fan is for the cooling system primarly so should really be working.

One of the first things I noticed in my Mk II is that it only has one fan, hope it doesn't fail

No aircon then?

Should have two fans if it has AC.