Does the hood pop, but when you raise it a little the tab does not stick out?
or
Does the hood not pop at all and the hood is still firmly attached?

In the first case you can use needle nose pliers to grab and pull the tab. My tab broke off and I had to do that. I put a piece of a coat hanger were the tab was until I got a junkyard tab a couple of weeks later.

In the second case I sure hope someone chimes in and lets you know how to do it. I assume you would have to go at it from underneath. I don't envy you!

Jim

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1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.