No ignition on an igniting plate r129 sl500 bj94

Ignition distributor passenger side or to the 4 cylinders that hang there the car has no ignition. Car bought off, then water might come over the two cyndspuhlen. Car started running on 8 yl. 5 min. Again started – ran again well – suddenly so little puffs at little speed but at a little more speed saturate on all 8 yl. Then highway 10min – then starts the pupfer and then car ran only on 4 yl. Put off and found that the cylinders from the z Do not ignite all 4 by the driver side. Adac has measured the fuses and described them as ok. Now the distributor cap and fingers are changed – but still no ignition on the cylinders which are controlled by the distributor cap by the driver side. ### What can this be??? ### How should I proceed???? I have no measuring device and do not know how to do it? Is there somewhere one or more fuses that could protect and be defective? you have been: wire harness, ignition cable, ignition control unit. How can you check whether ignition is on the distributor cap? If the ignition control unit is broken again, could this shut down an entire cap or the current in the area? Please tell me how to continue.