The caster and camber specs for your car depend on vehicle ride height. MB dealers use a measuring device made by Romess. The angle of the lower control arms and the rear axle shafts are entered into the alignment computer and the nominal specs are calculated. Since there are no eccentric bolts on a 210, like those on 123's, 124's, 126's, etc., you can only make small adjustments anyway. I looked up the range of caster and camber specs for your car, so I'll give you the mid-range specs.
Caster 5 to 6 degrees POSITIVE
Camber 1/2 to 1 degree NEGATIVE
Front Toe 0 deg. 10' (+/- 10')
Rear Toe 0 deg. 33' (+/- 7')