it did restart multiple times after it went of on the road, then when i slowed down it went off and didn't start, i had to get a truck to take it to the service center, the service center is the only autherized agent for mercedes in the country, but it looks like they haven't face such a problem,, it has been 2 days since they got the car and they couldn't find the problem untill now, they replace a part and they turn the car on, but it wents down after 10 minutes or so