Hey all. I'm having a bit of an issue with my car and wondered if anyone can help give me an idea of what's wrong so the garage doesn't screw me over too much! Everything seems fine except for one thing. A couple of months ago the temperature gauge shot right up to the red and "stop" flashed on the dashboard. While I was trying to look for somewhere to park up, it went back down again to normal temp as fast as it went up. Was only up in the red for perhaps 8-10 seconds. Happened again about a month later, exactly the same. Then on Xmas day, twice within a minute or two. Then again today, three or four times within a minute or two. I've checked the oil, coolant, all fine. Any thoughts?