9 times out of 10 Mercedes wont touch the car. An independent Mercedes repair shop shouldn't have an issue though as this is basically the same as the SLK 320. If I'm not mistaken this has the symptoms of a battery going dead/bad on the alarm module located near the engine bay under the wiper cowl. "Cricket on Crack" search here on the forum brings up plenty. Here is a link to one. (click on the following).

https://www.crossfireforum.org/forum...es-random.html

I might add too.. it's a 50/50 crap shoot that your Chrysler dealer will actually have a clue on the car also.. Welcome to red headed step child ownership.. LOL