I have a 99 S70 NA and while cruising down the interstate today, a fellow pulled up on my rear bumper very close and quick. I sped up and he did also. This continued until we were both at around 125 mph. At that time, I decided to roll up my windows and close my sunroof.(it was getting very loud inside) The windows went up fine, but the sunroof got almost all the way closed (from the sliding rear position) and then reversed itself fully when it was about 3 inches from the fully closed position.
As long as I held the forward button, it continued moving backward. tried it again at same speed, same effect. Slowed down to around 90 and it closed normally. Has operated normally for the rest of today as well. Is this a safety feature of the sunroof(to keep the pressure from damaging anything) or was it just a fluke? Now for my flame trap location question....Where is it. Upon arriving home, I smelled oil. Popped the hood and my dipstick was sticking up about 2 inches from the tube and the top of my engine was covered in oil. No damage done, but I know it has to be the flame trap that is not allowing the pressure to escape the engine at high speeds. any thoughts on the sunroof and any answers to the flame trap would be greatly appreciated. sorry for the long post.