how to replace/program ignition switch?
2001 E320 Mercedes Benz
If the ESL has failed in the unlocked position then disconnect the battery. If the steering column is locked then try thumping the column to get it to unlock. In the locked position removing the ESL requires steering column removal.
I posted recently with pics ref fitting an emulator to my W204, with ESL failed in the unlocked position.




When you insert the key does a message on the dash come up?
Does the steering wheel unlock, can you turn it?
Have you inspected the key fob itself, look for cracked solder joints at the coil?
A new/used EIS will have to be programmed.




