W221 ezs problem

[teerak2uk]

Intermittent starting issue on both keys is there a common fault inside the ezs on these

[brobble]

There is problem with micro switch for key detection. Just open ezs, pull out pcb and you will see there is a little connector, which is normally soldered to pcb. In most cases it will stay on microswitch because lost connection from pcb. Just resolder to pcb and you are done.

Greets MR...