Hello,

I have a 2010 ML350 bluetec, and have noticed the following problem on hot days. When I get into my truck, I turn the key to accessory and wait for the Comand centre to do it's thing and for the "please wait" notice to go away while I buckle up and the steering wheel comes down to its preset. Several times now, however, everything shuts down and the wheel goes back up, even before I turn the key to start. If I try to start the truck at this time, nothing happens, no crank, no dash, nothing. I have tried turning the key back to off and over again, taking the key out, putting it in the opposite way to what I had initially inserted it, all for no change. It seems like my truck doesn't like the warm weather, and it sometimes takes up to 5 minutes to get it to start. I only have one key, so I can't switch it out to see if there is an issue with it. I have read comments about ignition switches and crank sensors, but would like some advice if possible. Thanks

 

Most likely you have a bad ignition/EIS switch. pretty common issue, Ive replaced a bunch of them and it sounds like the same symptoms to me. Someone with an MB scan tool will find faults for circuit 50.

 

Thank you for your reply. I'll get it checked out.

 

I started reading this forum when I had a problem with my 2010 ML 350 Ignition switch. It seems to me that this is a common problem and that Mercedes is not admitting to it.I went to the dealer and they said it's a common problem. There is only 24000 miles on this vehicle and it cost $ 1100.00 for the repair. I have no problem with routine maintenance but an EIS switch should not go at 24000 . Please let me know if you have had a defective EIS in your vehicle. I am looking to start an action and get mercedes to make this eis a recall . Thank You. Any questions you can email me at Abcwoodworking@gmail.com

 

See the post before this one , as the gent as the same problem

 

Hi folks, it was the ignition switch that needed replacing, and luckily it was done under warranty.

 

Thanks I did that's why I am trying to get everyone together so maybe mercedes will acknowledge that this is a problem.