No they will not work. The V8 is about 180lbs heavier than the sixes. It will make your car too high in the front.
Go to http://www.hrsprings.com/site/frameproducts.html
and reference the model and application number for the springs that will fit your car.
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)