Hi Tontsa
You could try
www.eurocarparts.co.ukThey have slowly been increasing the parts they offer for the Espace and will supply outside of the UK but they do advise that import duties may be imposed by certain countries.... see
http://www.eurocarparts.com/customer_service.htm#exportRenault dealer prices in the UK are also very high. I have a 2002 JE and had to pay 108,00 GBP including tax for a front fog light. Euro Car Parts now have them available (made by Valeo who make the original equipment lamps) at 36,35 GBP plus VAT at 17.5%.
The engine oil, air and fuel filters from Euro Car Parts are about half the price of Renault filters and made by Purflux who are the supplier of Renault branded filters.
But you would need to check out the shipping costs from the UK and also if you would have to pay import duties to determine whether you could buy parts cheaper from the UK than from your local Renault dealer in Finland.
Martin