Stopped at Park Place Mercedes Plano TX dealer last week checking on parts prices and availability. Parts help has always been professional and pleasant.

Today I was searching online for the delivery valve internals for 95 E300D. One search brought up:

Mercedes/Smart - Catcar.info

also has several other brands for parts lookup.

Supposedly 'safe' according to google and symantec. There is a bit of concern because the two languages are Russian and English.

It was really easy to use and I found the DV part numbers by using the Europe option and not my vin #. For me, it was easier to use than partsouq.com my former favorite site for part #'s.