Hello Wayne:

Do you have your service manual handy? Take a look in there, and it will list the type of transmission fluid that you need.

I don't know if your car has this or not, but my 190e has a little sticker on the metal part immediately above the cooling fans that list the type of fluid as well. When you open up the hood, the sticker should be right there.

Hope this is helpful.

Thanks,
Michael.