Seat burning

It smelled hard in the car, somehow after chemistry or burnt Pertinax … 200 km/h shows the Tacho on the way from Fulda to Cologne last Saturday night, I drive to a parking lot, but can find nothing in the engine room and at the tires, it does not come from outside. My wife and I continue, sometimes only 80 times over 200 km/h, somehow the smell is a little speed dependent, I drive down from the highway and stand at the edge of the road and tear up all the doors and windows, crawl the small LED flashlight out of the glove compartment and light through the car … my wife yells at me: “My seat burns !!!!!!!!!!” it squirts in the bright light of the flashlight well visible from the back cushion of the passenger seat … 4 years old car, so much to the planned obsolescence The search for the grip for the safety box had to stop again.