I changed all ignition from BERU: caps, rotors, 2 coils, wires and plugs.
I have Bosch LH-jetronic fuel system not KE, and i have hot wire MAF. It's w140 with m119.970 engine. My guess is broken ECU (LH module)(solder joints or something) or sometimes i think about broken exhaust valves ... This answer what i get from here:

Everyday Diagnostics: Mercedes S-Class Misfire

Pico: Temperature will affect the performance of High voltage insulation and so your symptom most certainly matches this case study. How does your vehicle perform when cold in terms of load? Can the vehicle be accelerated under WOT with no misfire or backfire? Electrical loading can also highlight poor insulation issues. An insulation tester may also prove if your rotor has suffered an internal failure once at the failed operating temperature. Have you been able to capture the primary and secondary waveforms during cranking as with the above case study? Mechanical issues must also be checked as multiple tight valve clearances (Exhaust) would give you compression failure when hot and of course backfire.