Well it should have a na 603 if its a euro 300D.

Post the vin someone here will decode it for you.

I don't know how hard it would be to find parts for a euro 603, most of basic stuff is probably the same as the turbo charged engines.

__________________
2006 CL500
2009 C300 4matic
1969 280SE
2023 Ram 1500
2007 Tiara 3200