need to purchase condensor + the o rings what size are the o rings to condensor or Fiat part no.

Thanks.

This should be what you need. If the "O" rings don't come with condenser, it would be better to get them from an air conditioning specialist. From a Fiat dealer, you would probably need to buy a minimum packet quantity.
.

were is best place to purchase condenser/

Thanks.

Don't know that there is a "best" place.

This is the cheapest new one on eBay. http://www.ebay.co.uk/itm/Genuine-D...Parts_SM&fits=Model:Stilo&hash=item2c668d6f69

The picture in the listing is not a Stilo one, so check what they're supplying. Also, ask if it comes with "O" rings, and if not can they supply them.
.

Thanks for infomation Davren have purchased and Aircon is now working.