Svengruber,

How many miles on your 124.128s drive-train?

It is not unheard of for the OM602 to suffer an Oil Pump Chain failure,either
from a "Snapped Chain"
OR the *#^&_>@ Oil Pump Sprocket Bolt "BACKING OUT" of the Oil Pump
itself!

EITHER of which could cause the Demise of the Camshaft Timing Chain.

The progression of events may have occurred so rapidly that you did not
notice a Low Oil Pressure Incident,Because the Timing Chain had Already
parted!

MY Personal Boilerplate rule is (NOW):
1.Take the Oil Pump Sprocket Bolt out and Clean and Dry it's Seat in the OP
and Blue Loctite the OP Sprocket Bolt back into the OP(Proper Torque).
2.If the Timing Chain needs replacing ALSO do the Oil Pump Chain System.

__________________
'84 300SD sold
124.128