Mercedes Benz repair: 1973 mercedes, shaft bearings, distributor shaft

Question
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Followup To
Question -
Dear Sir
I'm a new to Mercedes 1973 model 200, The motor vibrate strongly at start -but it did not stop- the vibration become less after runing for a period but at random the motion interrupted for a moment and the car produce a sound as if it coughes then run normally then this action epeated at random again. by the way the motor heat indicator always about 50 degree.
Answer -
More data needed.
Is it gas or diesel engine?
How many miles on it?
Which model?

Vehicle: 1973 Mercedes Benz
Select vehicle model
         
220
220D
280
280C
280SE 4.5
280SEL 4.5


Fuel:  Gas
Miles: 09110
Model: 220

Answer
Best guess from data supplied:
#1. Carburetor needs to be rebuilt.
#2. Distributor shaft bearings bad.
#3. Ignition coil bad.
#4. Ignition points/condenser bad.
#5. Distributor Cap/rotor bad.
#6. Bad fuel.
#7. Plugged fuel filter.

If the engine is high miles, it may have low compression = need to be rebuilt.