There are a lot of them out there and I'd check with the manufacturer. We have used the elmscan 5 from scantool.net and according to them it is compatible:

http://www.scantool.net/forum/index.php?topic=2692.0

But I'd double check with them anyway. OBD is an ISO standard so most models are compatible these days, but like I said cotact them directly to make sure.

hi i am interested in buying a diagnostic scanner for a citroen xsara picasso 2.0 hdi but i do not know what the cars protocols is ?????? do i get a scanner for a diesel and is the protocols a ELM ? ISO ??????? WHAT DO I GET??? WHO KNOWS?