Try J.C. Whitney . . . they have dash pads listed for MBZ, and if they can't get one off the shelf for you, they will give you the company's name to order from them (for when it's not listed in the Whitney Catalog). I got one for my first Benz, reasonably and had a choice of the different types. Let me know how it works out for you.

Also . . . got any pics of the car? Would love to see it.

Torie

I have a 1976 300D w115 model that was part of the european delivery program and my first aid box is just as pictured. It's a black plastic holder in the passenger foot well.
I wonder if the European delivery cars had emergency triangles as well?
My car has a horrid aftermarket speaker in the cardboard in the footwell.
What was originally there? Was there any other speakers besides the one in the dash?

Interesting, I now know what the first aid tray is. I picked one up at the junkyard but never knew what it was for since it had a W115 part number.

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1974 240D 3.0L 4(M) - 250K -OM617.910 + 300D FW + Rajay turbo power!
1977 6.9 3(A) - 84k