The MB camber bolts for 210 (and others) front ends give about .75 deg change (if I remember correctly).
It may take both bolts on one control arm set one way to get that much change. It is a distinct reduction in alignment capability that really ticks me off. The alignability of MB cars has always been one of their major design features to me.
Bosch Master, ASE Master, L1
33 years MB technician