mercedes-benz uses the same design only the seat is a hemispherical seat, not a tapered seat, and theres 2 sizes, 12mm and 14mm. had a shop call for a few the other day. very interesting to finally find what the heck the guy was trying to explain.....
I thought that was the cloth covered fuel line that would wear through from rubbing against the cooling shroud which caused the whole back of the car to burst into flames.