Have Mercedes Questions? Ask a Mechanic for Answers ASAP
Hello, my name is Bobby. Thank you for the question. Most of the time this is caused by and issue with the electronic ignition switch. It fails internally and will not pick up the key or send the on signal. If the battery is fine then this is more than likely the problem. I have had some issues with the SAM module causing this also, but that is not as common. I hope this helps. Please let me know if you need more help.