Hello guys!

So we have a clc 160 that has no spark. It had the engine replaced and now ofcourse no spark.

There are no errors, Star doesn't show anything faulty.

What we have covered:
ECU & Ignition swap
SAM replaced
Coils
cam sensor
Crank sensor
Timing is spot on
All fuses okay
It's injecting fuel

Is there any common faults? Have we missed something?

Where really at a dead end with this

Thanks