From the sales designation it would be a 126 body. The parts in most cases are similar to UIS models you just need to know which ones. For engine and fuel system parts it would be similar to US 280E models to 1979. For most other issues it will be like a 380SE or 300SD. You will need to find someone who knows his business to ID parts OR you could go to
www.startekinfo.com and subscribe to the parts online section. I forget hiw much but it is less than $30 a year. If you chose world coverage it will give you look up capabilities of your exact euro model by chassis number.