I'm ready to re-mount the rear calipers on my '71 280SL. I've found throughout the BBB that it gives torque settings in either 'mkp' or 'kpm'. I haven't found conversion factors (to lb-ft or Nm) for 'mkp' anywhere by looking in the BBB or on the 'net for them. 'Mkp' doesn't appear to exist. From that same research I found that 'kpm' might be 'kilopond-meter', which converts to Newton-meters (Nm) by multiplying by 9.80665. It looks to me that when Mercedes refers to 'mpk', they might be referring to the same unit, just saying it differently for what reason I don't fathom. After converting 'mpk' (or 'kpm') to Nm, Nm can be converted to lb-ft by multiplying by 0.73756214728 (one Nm = 0.73756214728 lb-ft), which finally gets me to a torque setting my torque wrench understands (lb-ft).
So, for example, the BBB specifies the 280SL/8 rear caliper mounting bolts torque setting as '11.5 mkp' (or 'kpm'??), which converts to 83 lb-ft (11.5 x 9.80665 = 112.776; 112.776 x 0.73756214728 = 83.18 lb-ft). 83 lb-ft seems a bit high to me, for caliper bolts, but maybe not.
What say you, does this make sense, or am I all wet with this?