Mercedes W204 ELV problem

[Fec001]

Hi!
I have a customer here with ELV problems. Sometimes works, sometimes not. As I know it could be MCU or motor problem. Is there any way to use emulator instead of ELV or must use new unit?

[wsc]

yes
there are many emulators ....

[Fec001]

But are these emulators "plug and play" or must be programmed with some tool?

[puiu]

For 204 there is no plug and play emulator