Cla 180 1.6 Turbo (2019)
Med17.7.2
Stage 1: OK
Pop i bangs: OK
Read/write: OK
Mode: on Bench
Checksum manual
ECU Programmer to use: KT200II

Look at the following image, which shows KT200II is connected to computer, the ECU is connected to KT200II on Bench with the multifunctional cable.
KT200II Cla 180 1.6 Turbo (2019) Med17.7.2 Read write on Bench-01

Please refer to KT200II wiring diagram of BOSCH MED17.7.2 [ 1797 ] – Mercedes Benz [Gasoline]
Connect the multifunction cable as follows:
KT200II Cla 180 1.6 Turbo (2019) Med17.7.2 Read write on Bench-02

KT200II read and write use the following driver:
→ BENCH TRICORE
→ MERCEDES
→ TC1797 – MERCEDES
→ MED17.7.2