I went to a driving range today with a few mates to twat some balls about, get back to the car, start it and the temperature gauge moves from bottom to top 3 times then stops (this was then repeated five minutes later) I then tried to turn on the heaters and they wont work at all on any setting. I was thinking maybe a wire was vibrated lose as i had no exhaust, because it was being repaired, which meant the car was very throaty and vibrated heavily. Any help would be greatly appreciated as my MOT is in 2 days! 