Engine Belts And Pulleys problems of the 2013 Mercedes Benz ML350

I was driving on the highway at 70 mph, the check engine came on and about 5 seconds later, a loud noise came probably from the engine. The car then started jolting back and forth; I hit my head on the steering wheel twice and got almost knocked out. The engine stopped while I was still running at 70 mph. Most if not all the lights in my dashboard came on then I started slowing down. The seat belt never tightened on me as the car was jolting. I kept the car rolling and got out of a very dangerous situation. As the car came to a halt, a lot of engine oil leaked on the street, maybe about aquart. I took a picture as I just got out of the car. Also, as the towing took the car, the towing bed got over a quart of engine oil that leaked from my car. I towed the car to mercedez benz of novi but they refused to take it. They ordered me to towed it out and tow it back to them two weeks later. I towed it to Mercedes Benz of bloomfield on September 6. I notified mbusa of this incident on September 7 and provided them access to check the car but they showed no interest whatsoever in looking at the complaint as the vehicle has 92,273 miles and is out of warranty. They instead offered me a $2,000 discount on a purchase of another vehicle. Neither the dealership nor mbusa verified the car for safety related issues on the engine or seat belt though it was and still is parked at the mb dealership of bloomfield. I could have easily went unconscious from the jolting and hitting my head on the steering wheel. I think there is a major safety issue that requires at a minimum for the manufacturer to look at let alone issue a recall for safety reasons on the engine and the seat belt.