The P is a release for the parking brake.

There is another lever under there, probably slightly to the right, under the dash on the lower left side. Take a flashlight, grope around and you will find it.

It may have the words "HOOD" written on it.

It could be a T-handle or a lever. Seek and ye shall find!

Good luck!

If you tell us the exact YEAR and MODEL someone here will have one just like it.

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Semibodacious Transmogrifications a Specialty

1990 300D 2.5 Turbo sedan 171K (Rudolf)
1985 300D Turbo TD Wagon 219K (Remuda)

"Time flies like and arrow, yet fruit flies like a banana"
---Marx (Groucho)