Yes, MB sedans of the era used the same mirror except the stem was a little longer. The main body of the mirror has a socket which pops onto the mirror stem ball. Unfortunately the plastic becomes brittle with age and may break or crack the plastic socket during the procedure. As Tyler posted, a heat gun may make the plastic pliable enough to perform the task. Mercedes W115, W114, W108 and W109 sedans of the era (1968-1973) used this mirror.