I know that there are some threats about this topic here, but I have some questions. First the situation: car parked yesterday evening, no problems with the ride. This morning I wanted to go off, keys in the lock, but nothing goes so briefly Googled. the posts read through here, but found no real solution. In the display KM stand is displayed etc., as well open trunk, open door etc. facts: The door lock / unlock works with remote service from the key. I tried it with both keys. Batteries are both full, trunk is electrically opened, both batteries have over 12.2 V voltage. After some attempts came the message with the steering wheel lock / workshop. But that does not always come, however, the steering wheel cannot be unlocked. Sometimes the whole display remains dark, the next attempt it works as described above. I exposed the Kessy, all bone dry. In the Questions: How do I build the ignition lock (how do I get the lining around it?) Can you check the function of the ignition lock with simple measuring devices? If so, what value on which pins? Or do you think it is excluded that it is on the ignition lock? How can I check the ELV? In what order do I proceed to this? I thank you already in advance for your answers. Greetings Idefix