2009 Mercedes-Benz C300 stability control problems

"takata recall" when I was driving after a oil change, I heard a noise that sounded like someone hit my car. I was scared and shaky so I pulled over could see anything but I heard a ticking noise. Then I realized the head rest mini air bag blew up and the wiring inside the head rest was burning. This happened while I was driving. I could have got into an accident. I had to pull over right where all the traffic was because my hands were shaking and I didn't know what to do with the burning smell.

On the highway driving 40 MPH warning on the display came on stating the" ebr, ABS, esp are inoperative" and a warning display stating "power steering malfunction". Power steering was fine, but it was a very nerve wrecking drive. Dealership is stating it is the esp module and pump that needs to be replaced, which can only be done at the dealership.