W169 key stuck in barrel (EIS)

[alessioblaupunkt]

Mercedes W169 year 2008
Engine intermittently NO CRANK, decided to add a crank button as per very old car.
Was able to operate and remove the key before starting to work.
Removed the Electronic Ignition Switch from dash, has 2+4+7 wires +1 latch cable.

Disconnected the 4 socket with key inside the barrel to turn the key and find
which wire is responsable of crank.

Key turn free twice then a minute later was not possible to turn the key in the barrel
or to remove the key.

Now the key is stuck even if the ignition switch has all the wires and the latch attached.
Tried with car battery connected and disconnected.

How do I remove the key from the barrel?
I see two torx screws in the front of the ignitions switch.

Thank you.

[alessioblaupunkt]

Hey hey left the EIS electrically disconnected but with the latch cable connected all the night,
battery disconnected also, in the morning tried to turn, nothing, tried to remove, at the second attempt
the key come out nicely, so I quickly reconnected everything, remounted the EIS, reconnected battery but still
can't turn the key, moves a little but does not turn the dash light and does not reach the first position.

So I deleted the errors of SAM, steering, etc, EIS got no error, I doubt the error delete could solve a stuck
EIS, in fact tried to turn, nothing, askd to the main mechanic to try to turn, the first attempt nothing, at the
second the first position is reached, dash light (!) and another light is on, tried to reach the second, ok,
tried to crank, no crank but that's the reason the car is in, tried again crank bad, now we'll see what can cause
the engine to no crank, found a bad crank relay, is a strange type, ordered, we will see.

Btw if you jump 30 and 87 with key ON (II position) you operate the starter but engine will not start, because the
relay close another contact with a diode, too risky to add a start button, what if you operate starter but
ECM or steering column or EIS does not allow some operation.

What a messy system.

For sure I WILL NOT OPERATE AN ELECTRONIC IGNITION SWITCH without battery, without connectors and without the cable latch.
It is a miracle it unlocked during night.

[Meat-Head]

Sounds like dry solder in the key