Thank you all for the prompt reply. Was trying to open the hood yesterday in a snowstorm while driving home for the wholesale place so I could add washer fluid. Who would have thought that Mercedes would put a 300,000 candle power bulb in the fluid level indicator? Really bright and annoying at night.
Anyway, couldn't find the release then and couldn't find it today in nice weather either.
Turns out Jim is right, its a small piece buried in the Mercedes star in the grill... not a T shaped handle like the Sedan must have.
Anyway, most important... got the hood open and don't feel so stupid anymore!
Many thanks! This board is terrific... will be asking for more help I'm sure...